Patent Grant
10375998
1. Field of the Invention
The field of the invention relates to an electronic cigarette personal vapouriser, also known as an electronic cigarette (e-cig or e-cigarette), vapestick, modding kit, personal vaporizer (PV), advanced personal vaporizer (APVs) or electronic nicotine delivery system (ENDS). In this specification, we will typically use ‘PV’ or ‘e-cigarette’ as the generic term. A PV vapourises ‘e-liquid’ or vaping substance to produce a non-pressurised vapour or mist for inhalation for pleasure or stress-relief, replicating or replacing the experience of smoking a cigarette. An ‘E-liquid’ or vaping substance is a liquid (or gel or other state) from which vapour or mist for inhalation can be generated and whose primary purpose is to deliver nicotine.
PVs are therefore mass-market consumer products that are equivalent to cigarettes, and are typically used by smokers as part of a cigarette reduction or cessation program. The main ingredients of e-liquids are usually a mix of propylene glycol and glycerine and a variable concentration of tobacco-derived nicotine. E-liquids can include various flavourings and also come with varying strengths of nicotine; users on a nicotine reduction or cessation program can hence choose decreasing concentrations of nicotine, including at the limit zero concentration nicotine e-liquid. The term ‘e-liquid’ will be used in this specification as the generic term for any kind of vaping substance.
E-cigarette PVs were first conceived in 1963 and for the last 50 years of development have generally been seen as a separate and distinct category compared with conventional medicinal delivery systems. To emphasise the difference over medicinal devices, we will also in this specification use the term ‘e-cigarette PV’, as opposed to the term ‘PV’.
Despite this sector being over 50 years old, there are still many practical problems that have not yet been solved and that are a barrier to e-cigarette PVs achieving mass-market success; they are still a long way from replacing conventional cigarettes. If they were to largely replace cigarettes, then some experts state that large-scale adoption could bring significant public health benefits. Writing in the British Journal of General Practice, DOI: 10.3399/bjgp14X681253, published 1 Sep. 2014, Prof Robert West and Dr Jamie Brown from University College London stated that “For every million smokers who switched to an e-cigarette we could expect a reduction of more than 6000 premature deaths in the UK each year, even in the event that e-cigarette use carries a significant risk of fatal diseases, and users were to continue to use them indefinitely.”
2. Technical Background
PVs are typically battery-powered devices which simulate tobacco smoking by producing inhalable vapour (typically propylene glycol and nicotine). They generally use a heating element known as an atomizer, that vaporizes a liquid solution known as e-liquid or ‘juice’. E-liquids usually contain a mixture of propylene glycol, vegetable glycerin, nicotine, and flavorings, while others release a flavored vapor without nicotine. Vaporization is an alternative to burning (smoking) that avoids the inhalation of many irritating toxic and carcinogenic by-products. Apart from simulating tobacco smoking, the electronic vapouriser can also be used as a smoking-cessation aid or for nicotine (or other substance) dosage control.
Most electronic cigarettes take an overall cylindrical shape although a wide array of shapes can be found: box, pipe styles etc. First generation electronic cigarettes were usually designed to simulate cigarettes in their use and appearance. They are often called ‘cig-a-likes’. Cig-a-likes are usually disposable, low cost items and the user-experience is often quite poor. New generation electronic cigarettes, often called mods, modding-kits or APV's (advanced personal vaporizer) have an increased nicotine-dispersal performance, housing higher capacity batteries and come in various form factors, including metal tubes and boxes. Many electronic cigarettes are composed of standardized replaceable parts that are interchangeable from one brand to the other, while disposable devices combine all components into a single part that is discarded when its liquid is depleted. Common components include a liquid delivery and container system like a cartridge or a tank, an atomizer, and a power source.
Atomizer
An atomizer generally consist of a small heating element responsible for vaporizing e-liquid, as well as a wicking material that draws liquid in. Along with a battery, the atomizer is the central component of every personal vaporizer. Differences between atomizers cause differences in the ingredients and their concentrations delivered to users, even when the same liquid is used.
A small length of resistance wire is coiled around the wicking material and then connected to the positive and negative poles of the device. When activated the resistance wire (or coil) quickly heats up, thus turning the liquid into a vapor, which is then inhaled by the user.
Wicking materials vary greatly from one atomizer to another but silica fibers are the most commonly used in manufactured atomizers. A wide array of atomizers and e-liquid container combinations are available.
Cartomizers
A cartomizer (a portmanteau of cartridge and atomizer) or ‘carto’ consists of an atomizer surrounded by a liquid-soaked poly-foam that acts as an e-liquid holder. It is usually disposed of once the e-liquid acquires a burnt taste, which is usually due to an activation when the coil is dry or when the cartomizer gets consistently flooded (gurgling) because of sedimentation of the wick. Most cartomizers are refillable even if not advertised as such.
Cartomizers can be used on their own or in conjunction with a tank that allows more e-liquid capacity. In this case the portmanteau word of “carto-tank” has been coined. When used in a tank, the cartomizer is inserted in a plastic, glass or metal tube and holes or slots have to be punched on the sides of the cartomizer to allow liquid to reach the coil.
Clearomizers
Clearomizers or “clearos”, not unlike cartotanks, use a clear tank in which an atomizer is inserted. Unlike cartotanks, however, no poly-foam material can be found in them. There are a lot of different wicking systems employed inside of clearomizers to ensure good moistening of the wick without flooding the coil. Some rely on gravity to bring the e-liquid to the wick and coil assembly (bottom coil clearomizers for example) whereas others rely on capillary action and to some degree the user agitating the e-liquid while handling the clearomizer (top coil clearomizers)
Power
Most portable devices contain a rechargeable battery, which tends to be the largest component of an electronic cigarette. The battery may contain an electronic airflow sensor whereby activation is triggered simply by drawing breath through the device, while other models employ a power button that must be held during operation. An LED to indicate activation may also be employed. Some manufacturers also offer a cigarette pack-shaped portable charging and re-filling case (PCC), which contains a larger battery capable of charging e-cigarettes. Devices aimed at more experienced users may sport additional features, such as variable power output and support of a wide range of internal batteries and atomizer configurations and tend to stray away from the cigarette form factor. Some cheaper recent devices use an electret microphone with a custom IC to detect airflow and indicate battery status on the included blue LED.
Variable Power and Voltage Devices
Variable voltage or power personal vaporizers are devices that contain a built in electronic chip that allows the user to adjust the power that goes through the heating element. They usually incorporate a LED screen to display various information. Variable PV's eliminate the need of having to replace an atomizer with another one of lower or higher electrical resistance to change the intensity of the vapour (the lower the resistance, the higher the vapour intensity). They also feature voltage regulation and some battery protection.
Some of these devices offer additional features through their menu system such as: atomizer resistance checker, remaining battery voltage, puff counter, activation cut-off etc.
E-Liquid
E-liquid, e-juice or simply “juice”, refers to a liquid solution that produces a mist or vapour when heated by an atomizer. The main ingredients of e-liquids are usually a mix of propylene glycol (PG), vegetable glycerin (VG), and/or polyethylene glycol 400 (PEG400), sometimes with differing levels of alcohol mixed with concentrated or extracted flavorings; and a variable concentration of tobacco-derived nicotine. There is variability in the purity, kinds and concentrations of chemicals used in liquids, and significant variability between labeled content and concentration and actual content and concentration.
E-liquid is often sold in bottles or pre-filled disposable cartridges, or as a kit for consumers to make their own. Components are also available individually and consumers may choose to modify or boost their flavor, nicotine strength, or concentration with various offerings. Pre-made e-liquids are manufactured with various tobacco, fruit, and other flavors, as well as variable nicotine concentrations (including nicotine-free versions). The standard notation “mg/ml” is often used in labeling for denoting nicotine concentration, and is sometimes shortened to a simple “mg”.
Source acknowledgement for this Technical Background section: Wikipedia entry on e-cigarettes.
3. Discussion of Related Art
The patent literature in this field is quite extensive, with the earliest e-cigarette PV dating from 1963.
Some of the more relevant patent disclosures in this space include the following. We highlight some of the main reasons why each item of prior art lacks relevance.
US 2014/020697 Liu.
CN 202679020 Chen:
US 2013/342157 Liu
CN 201630238 Jian
WO 2011/095781 Kind
US 2012/167906 Gysland
WO 2011/026846 Wedegree
WO 2009/001078 Kind
For completeness, we mention also another item of non-analogous art, which is firmly in the medical inhalation field and lacks any specific reference to e-cigarettes or nicotine delivery. The field of this invention is rather different from medical inhalation devices, such as asthma inhalers or other metered dose inhalers, since cigarette smoking is very clearly not a medicinal activity. Specifically, the mind-set of the e-cigarette designer is to replicate as closely as possible the non-medicinal cigarette smoking experience, but without combusting tobacco. Metered dose inhalers on the other hand are typically designed for accurate, rapid, and very occasional (e.g. emergency-only) oral delivery of one or two doses of pressurised medicinal aerosol; the user experience of a PV is quite different, with relatively slow, but frequently repeated inhalations of a mist or vapour from a non-pressurised source; the experience is designed to be similar to, and hence an effective replacement for, the experience of smoking a conventional tobacco cigarette. One example of a metered dose inhaler is shown in U.S. Pat. No. 6,637,430 Ponwell. This lacks relevance for the following reasons:
Emphasising the distance between the field of metered dose inhalers and e-cigarette PV design, one of the many problems facing the designer of an e-cigarette PV is how to minimse any toxins in the vapour produced by the PV.
For example, in the paper in the New England Journal of Medicine, ‘Hidden Formaldehyde in E-Cigarette Aerosols’ N Engl J Med 2015; 372:392-394, the authors describe how they tested for the presence of formaldehyde-releasing agents (whose safety when inhaled is not fully understood) in the vapour of an e-cigarette PV with a variable voltage power source: ‘At low voltage (3.3 V), we did not detect the formation of any formaldehyde-releasing agents (estimated limit of detection, approximately 0.1 μg per 10 puffs). At high voltage (5.0 V), a mean (±SE) of 380±90 μg per sample (10 puffs) of formaldehyde was detected as formaldehyde-releasing agents.’ They go on to state ‘How formaldehyde-releasing agents behave in the respiratory tract is unknown, but formaldehyde is an International Agency for Research on Cancer group 1 carcinogen.’ One solution would appear to be to ensure that e-cigarette PVs run at low voltage (e.g. 3.3V) and not higher voltages, like 5V. But the problem that then arises is that the PV current has to be higher for a good ‘vaping’ experience, and that in turn means that (a) the PV battery runs down more quickly, and (b) the e-liquid is consumed more rapidly.
This is inconvenient with conventional designs of PV because recharging or replacing a battery takes time and because re-filling with e-liquid takes time; users would for example then need to carry around spare batteries or charging cables and e-liquid bottles. This is very different from the relatively straightforward and simple experience (and, to smokers, deeply attractive ritual) of opening a pack of conventional cigarettes and just lighting up. Because we see replicating the behavioural aspects of the cigarette smoking user experience as key to a successful product, these are major drawbacks for conventional PV designs.
One solution is to use a large ‘modding-kit’ type PV with a very large capacity battery that can run at the low 3.3V voltage associated with no formaldehyde release and a large e-liquid reservoir. These devices can be the size of several packets of cigarettes, and so the user sacrifices easy portability. But the performance or user experience can be good, since these devices can produce good quantities of vapour, without the need for frequent and inconvenient battery re-charging or replacement and e-liquid re filling. When e-liquid does need to be replenished however, that is typically done by dis-assembling the unit to expose the reservoir and to then squeeze e-liquid into the reservoir from a small bottle; this can be slow and cumbersome; users often then carry around a replacement bottle or e-liquid, especially if they are using e-cigarettes to quit tobacco smoking, since if they were to run out of e-liquid, then the temptation to buy a packet of cigarettes to smoke could prove hard to resist. And this complex e-liquid re-filling process clearly has none of the simplicity or attractive ritual of opening a packet of cigarettes and lighting up.
An ideal solution would be an e-cigarette PV with the form factor of a conventional cigarette, and with the best aspects of the performance and user experience of a large modding kit type PV. This specification describes such a solution. The solution is designed to replicate many of the key behavioural and experiential aspects that make smoking attractive to smokers (e.g. the tactile satisfaction of holding a cigarette packet and opening the lid and withdrawing a cigarette; the action of holding a slim cigarette; the simplicity of the user's only action being to light up). Replicating these user experience aspects is we believe key to the successful mass-market adoption of e-cigarettes and hence delivering on their considerable public health potential.
The invention is a portable, personal storage and carrying case for an e-liquid e-cigarette PV which is operable to re-fill the PV with e-liquid if the PV is inserted, fully or in part, into the case, whilst maintaining the PV whole and intact. An embodiment comprises a user-replaceable e-liquid reservoir for dispensing e-liquid, the reservoir being inserted into, or otherwise attached to, a portable, personal e-cigarette device and engaging with an electrical or electronic pump fluid transfer system in the device, the device including: an electrical or electronic pump, being configured to transfer e-liquid from the e-liquid reservoir to an atomizing unit in the device, the pump delivering a pre-defined or variable quantity of e-liquid from the reservoir; and in which the reservoir is not user-refillable.
Examples of the invention will now be described with reference to the accompanying diagrams, in which:
All of the remaining figures depict elements of an e-cigarette PV or PV case that solve problems with the prior art.
1 Personal Vaporiser—PV
2 PV holder and receptacle chassis
3 Reservoir (a user-replaceable e-liquid cartridge)
4 Pump
5 4 Way Sliding Contact Block
6 Case—L/h
7 Case—R/h
8 Cam Block
9 Guide Plate
10 Pawl/Lever
11 Solenoid Mounting Block
12 Chassis Lid
13 Valve Mounting Cup
14 Valve Mounting Cap
15 Reservoir Gasket
16 PCB—Main Case
17 Leaf Spring
18 Pivot Screw
19 Spring—Pawl/Lever
20 Split Spring Pin—Pawl Spring
21 Split Spring Pin—Pawl Pivot
22 Solenoid
23 Spring—4 Way Sliding Contact Block
24 Contact Finger
25 Ring Contact
26 Insulating Ring
27 Seal Inlet—PV
28 O Ring—PV Chamber
29 Valve—PV Tip
30 Spring—PV Tip Valve
31 Grub Screw—PV Tip
32 PV Tip
33 Screw—Guide Plate
34 Valve—Pump
35 Screw—Leaf Spring
36 End Cap—Ring Connector
37 PCB Mounting Cap/Ring Connector
38 Pin—180°—Ring Connector
39 Pin—135°—Ring Connector
40 Pin—45°—Ring Connector
41 Pin—0°—Ring Connector
42 Ring Contact
43 Insulation Ring
44 Screw—Ring Connector
45 Support Ring—4 Way Sliding Connector
46 Body—4 Way Sliding Connector
47 Wires—4 Way Connector Block
48 Fluid Chamber—PV
49 Ring Connector Assembly
50 Vaporiser End Cap
51 Vaporiser Insulating Sleeve
52 Coil and Wick Assembly
53 Vaporiser Outer Body
54 Bush—Vaporiser Body
55 Vaporiser Inner Body
56 Tube Body—Vaporiser
57 Pressure Sensor Housing
58 Pressure Sensor/Transducer
59 Battery—PV
60 PV PCB
61 Hollow Stem Shaft
62 Moulded Rim/Undercut
63 Moulded Lip Seal
64 RGB LED Indicator
65 Reset Switch
66 Arduino Chip
67 Micro USB Connector
68 Battery—Chassis
69 PCB Standoffs
70 Microswitch
71 Power Connection Insulating Bush
80 Fluid chamber inside the pump
81 Fluid inlet end
82 Fluid outlet end
83 Slotted tube for ball
84 Feed-through hole
85 Piston
86 Piston rod
87 Bias spring
88 Valve stem
89 Piston return spring
90 Valve cap
91 Tapered valve seat
92 Ball valve
93 Return spring
94 Valve seal washer
95 Reservoir cap
96 Spring guide
97 Reservoir body
98 longitudinal heating coil
99 heating coil chassis
100 Re-filling and re-charging case
Conventional PV designs suffer a number of drawbacks. This Detailed Description section describes a number of high-level features which address the most significant drawbacks. An implementation of this invention uses one or more of these high level features.
We will organise our description of the features using the following categories:
Section C. User-Replaceable E-Liquid Cartridge
Feature 11. User-Replaceable E-Liquid Cartridge That Fits Into the Portable Storage and Carrying Case
Note that each high-level feature listed above, and the related, detailed features listed below for each high-level feature, can be combined with any other high-level feature and any other detailed feature. Appendix 1 provides a consolidated summary of each of these.
Introduction
The following sections will describe an e-cigarette system that implements aspects of the invention; this system includes:
Because the PV can be stored in the case whenever it is not being used, and the case may operate to re-fill the PV from its user-replaceable cartridge and also re-charge the PV, the PV can always be in its fully re-filled and re-charged state whenever it is removed from the case. There is no longer any need for the user to carry around spare batteries for the PV or small re-fill bottles of e-liquid.
One design of this new system, as shown in
This system is designed to re-fill and re-charge a PV many thousands of times without damaging either case or PV. This system gives the user an e-cigarette PV with the form factor of a conventional cigarette, and with the performance and user experience (e.g. vapour intensity) of a large modding kit-type PV, but with none of the inconvenience of dis-assembling the PV to re-fill the PV with e-liquid from a small bottle. This system also replicates the rituals of handling an object similar in size to a packet of twenty cigarettes, of opening that packet and withdrawing a cigarette; and the tactile familiarity of holding a cigarette sized object and inhaling from it. This combination is we believe key to the large-scale consumer adoption of e-cigarettes.
Section A. E-Liquid Re-Filling and Re-Charging Storage and Carrying Case
In this Section A, we will describe the e-liquid re-filling and re-charging storage and carrying case. The case implements a number of useful features:
In this Section A, we will summarise each of these six features in turn, and then describe them in detail. Appendix 1 collects these features into a consolidated summary.
Feature 1. Combined Re-charge and Re-fill Storage and Carrying Case
The feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes: (a) a power source for re-charging a rechargeable battery in the PV; (b) a reservoir for holding e-liquid; and (c) a fluid transfer system adapted to transfer e-liquid from the reservoir to a chamber in the PV. The reservoir for holding e-liquid is, in one implementation, a user-replaceable e-liquid cartridge.
As noted above, this approach is key to an e-cigarette PV with the form factor of a conventional cigarette, and with the performance and user experience of a large modding kit-type PV: re-filling and re-charging of the PV is fast and convenient, since it can occur readily and easily whenever the user returns the PV to its case. The e-liquid cartridge in the case requires relatively infrequent (e.g. weekly) but fast, and mess-free replacement; it is far easier than re-filling manually by squeezing e-liquid from a small bottle. It may also have a simple relationship with conventional cigarette consumption (e.g. ‘one hundred cigarettes in a case’).
Note also that the two features of re-charging the PV's battery and re-filling the PV's e-liquid chamber have a working interrelation that produces an overall improved result—we have a synergistic combination of features, entirely lacking for example in the non-analagous field of metered dose inhalers, exemplified by U.S. Pat. No. 6,637,430 Ponwell.
Specifically, an effective e-liquid PV consumes a significant amount of e-liquid and also current. Cigalites have not sold well in the market because they permit neither high e-liquid consumption nor high current. Cases that can merely re-charge a PV are not good enough because the PVs need to be frequently re-filled with e-liquid, which means dis-assembling them, which is messy and inconvenient. But if you add an e-liquid re-filling feature to the case, as envisaged in this Feature 1, then that means you can run the heating element in the PV at a sufficiently high current to give much better performance—the fact that you are also now consuming more e-liquid since you are heating it faster and also now depleting the PV battery faster does not matter anymore because you can both conveniently re-fill the PV with e-liquid when you insert the PV back into the carrying case and also re-charge the PV battery. So adding an e-liquid PV re-fill capability has a working interrelationship with the PV battery re-charging function—it enables the PV to run at higher current and also higher juice consumption rates, giving much better vaping performance, but without the inconvenience of having to regularly dis-assemble the PV for re-filling or battery change.
Also, with this Feature 1, we can run the atomiser at the lower voltages (e.g. 3.3V) that likely produce no formaldehyde if we use low resistance wire in the atomiser—this not only produces no formaldehyde but will also produce warmer vapour and more vapour than would be made if the device were running at 5V.
Systems that do not have a combined re-fill and re-charge carry case cannot replicate this experience at lower voltages like 3.3V, because a 3.3V and low resistance wire combination means faster battery drain and faster e-liquid consumption than a higher voltage and higher resistance wire combination. As noted above, faster PV battery drain and faster e-liquid consumption are not disadvantages with the present Feature 1 because re-charging the PV and re-filling it with e-Liquid is fast and convenient and can happen readily whenever the PV is returned to the storage and carrying case.
Feature 2. Case With Movable PV Holder
The feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which moving a movable holder or chassis, into which the PV has been inserted, brings electrical charging contacts on the PV into direct or indirect engagement with electrical charging contacts in the case that are connected to a power source, such as a rechargeable battery in the case.
By requiring the PV to be inserted into a movable holder or chassis in the case, it becomes much easier to guide the PV into accurate alignment with the electrical charging contacts in the case, as well as (preferably) guide an e-liquid filling aperture in the PV into accurate alignment with an e-liquid nozzle used to transfer e-liquid into the PV. Accurate alignment is highly desirable to ensure good electrical contact, to minimise leakage and to ensure optimum performance of the e-liquid fluid transfer mechanism.
Feature 3. Re-Filling the PV
The feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV which re-fills the PV with e-liquid if the PV is inserted, fully or in part, into the case, whilst maintaining the PV whole and intact.
By ensuring that the PV remains entirely intact (in contrast for example to some medicinal inhalation devices which require a needle in the canister that stores medication fluids to puncture a rubber septum in the inhalation device), the design is robust and can be used for thousands of re-filling operations (as opposed to a very small number with a needle that punctures a rubber septum).
Another related high-level feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV which re-fills the PV using a fluid transfer system, such as a pump activated by depressing and releasing the entire, complete PV, whilst the PV is held in a holder of the case in accurate alignment with the fluid transfer mechanism.
Using a holder to hold the PV in accurate alignment with a fluid transfer system is highly desirable to minimise leakage and to ensure optimum performance of the e-liquid fluid transfer mechanism, particularly where that mechanism is a pump activated by relative motion of the PV against the pump, since if the PV is not aligned correctly (e.g. along the longitudinal axis of the pump nozzle), the pump may not operate efficiently and there may be leakage.
A related high-level feature is: An e-liquid e-cigarette PV adapted to be re-filled with e-liquid when inserted into a case, in which the PV includes an e-liquid filling aperture positioned centrally along the main axis of the PV to minimise any off-centre forces that could otherwise compromise e-liquid sealing.
Another high-level feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case is adapted to transfer e-liquid to an e-cigarette PV from a user-replaceable e-liquid cartridge in the case.
If the case includes a user-replaceable cartridge, then it becomes fast and mess-free for the user to replace user cartridges and try new flavours or strengths of e-liquid by swapping our the cartridge. Since the cartridge capacity will be much greater than the PV's e-liquid chamber (for example, 10 ml for the user-replaceable cartridge as compared to 1 or 2 ml in the PV chamber), replacement of the cartridge happens relatively infrequently—typically once every 5 days for a user replicating smoking 20 cigarettes a day. That also gives the user an easy to grasp measure of the effectiveness of any nicotine reduction program they are following—moving progressively from replacing a cartridge from every 5 days, to every 6 days, to every 7 days etc. For many ordinary users, this is an easy metric to follow.
Feature 4. PV Locking Mechanism
The feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV which is adapted to lock the PV securely in a charging position; and when the PV is locked in the charging position, then electrical charging contacts on the PV are in direct or indirect engagement with electrical charging contacts in the case that are connected to a power source, such as a rechargeable battery, in the case.
By ensuring that the PV is locked in position, effective charging can occur and also the risk of damaging the electrical contacts (on both PV and in the case) by inadvertent movement of the PV is reduced. That is especially important since the case is a portable storage and carrying case.
Feature 5. Case With Data Connectivity
The feature is: A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes (a) user-replaceable e-liquid cartridge; and (b) a fluid transfer system adapted to transfer e-liquid from the cartridge to a chamber in the PV; in which the case includes a data processor that controls sending a signal requesting a replacement for the user-replaceable e-liquid cartridge in the case.
Enabling the case to send a request for a replacement e-liquid cartridge is very convenient for the user and also ensures that replacement cartridges are supplied in a timely manner—this is especially important when the user is on a tobacco or nicotine reduction programme since if the case runs out of e-liquid, then the user may well be tempted back to using cigarettes. So the efficacy of adopting this system as a cigarette replacement (and health concerns with cigarettes is overwhelmingly the reason given for e-cigarette adoption) benefits greatly from the timely, automatic, background ordering and supply direct to the end-user of replacement cartridges.
Feature 6. E-fulfilment Method
The high-level feature is: Method used in portable, personal storage and carrying case adapted specifically for a refillable e-cigarette PV and that re-fills and re-charges the PV, the method including the steps of the case (a) transferring e-liquid from a user-replaceable e-liquid cartridge to the PV and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone. The method may include the steps of the case (a) detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
This feature is the method that is associated with Feature 5 and the same advantages apply. Note that ‘detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case’ could be direct, or could be indirect, such as inferred from the number of re-fills of the PV that have been completed with that cartridge, or the total number of inhalations made with that cartridge.
Further optional features (each of which can be combined with any of the others high-level features 1-6 above) include the following:
In the next section of Section A, we will detail the operation of the following features:
Feature 1: Combined re-charge and re-fill storage and carrying case
Feature 2: Case with movable PV holder
Feature 3: Re-Filling the PV
Feature 4: PV Locking mechanism
Features 1, 2, 3 and 4. Combined re-charge and re-fill storage and carrying case;
The following section describes the case and the PV in more detail, focusing on these four features. The relevant Figures are
A portable charging device for replenishing the e-liquid or vapour fluid of an e-cigarette PV comprises: an e-liquid reservoir for storing multiple dosages of e-liquid; and a refill mechanism configured to engage with the e-cigarette PV to deliver a dose of e-liquid from the reservoir to the e-cigarette PV.
Embodiments may provide a re-filling case for refuelling the e-cigarette PV with single dose (or predetermined by end user) multiple doses of e-liquid. The e-liquid may be supplied to the e-cigarette PV from a tank in the charging and re-filling case holding a larger reserve of e-liquid. The tank may be a user-replaceable cartridge.
A single dose of e-liquid delivered to the PV (and subsequently held in the e-liquid chamber within the PV) may be equivalent to a single measure of substance (such as the quantum of nicotine inhaled in one ordinary cigarette). Typically, 0.1 ml is delivered using the micro-pump design described later in this section with each pumping action; this is equivalent to approximately ten puffs of a cigarette. The e-liquid chamber in the PV typically holds between 1 ml and 3 ml of e-liquid, very roughly equivalent to between ten and thirty cigarettes.
The fluid reservoir in the charging and re-filling case may store multiple dosages of e-liquid; the amount of e-liquid stored in the reservoir can be 10 ml and is hence significantly greater than the fluid in a conventional cartridge or vial inserted into a conventional electronic cigarette. This makes re-filling the case with a fresh e-liquid cartridge far less frequent; with a conventional PV, the cartridge in the PV has to be replenished or replaced once that relatively small dose is consumed; with our approach, it is the cartridge slotted into the carrying case that has to be replaced and this is readily done; as this holds far more than a conventional PV cartridge, replacement occurs far less frequently. Re-filling the PV occurs easily and quickly whenever the user inserts the PV back into the carrying case. This is not only more convenient for the end-user, but also significantly reduces waste. The cartridges are ideally fully recyclable.
A high-capacity e-liquid cartridge that is easily user-replaceable is especially important in a relatively low voltage, low resistance (e.g. closer to 3.3V than 5V; resistance closer to 2 ohms than 2.8 ohms or higher—typically 2.4 ohms—1.9 ohms for 3.3V) since e-liquid consumption by the PV can be quite high. This high consumption would, with a conventional PV design be highly inconvenient because of the need to disassemble the PV and manually drip e-liquid into a small reservoir by squeezing a bottle of e-liquid. But it is no longer a problem because of the ease of re-filling the PV with e-liquid whenever it is slotted back into the case.
A user is also now able to monitor use of the PV (and hence nicotine use) in a similar way to conventional cigarette consumption. For example, a single dose may be equivalent to the amount of e-liquid required to simulate nicotine consumption equivalent to a single tobacco cigarette. With the micro-pump system described later in this section, pressing the PV down just once against the micro-pump causes approximately 0.1 ml to be transferred from the case to the PV; this is approximately equivalent to ten puffs of a cigarette. The user could hence pump the PV down just once to transfer e-liquid equivalent to a single cigarette, or say five times for five cigarettes, or ten times for ten cigarettes.
In one design, the volume of e-liquid stored in the PV chamber may be equivalent to the volume of e-liquid required for an electronic cigarette to simulate a pack of twenty tobacco cigarettes. Therefore, the user may be able to conveniently regulate their consumption of nicotine via the PV. The maximum capacity of the e-liquid chamber in the PV could be 2 ml, and hence very approximately equivalent to twenty cigarettes. This easy to understand equivalence to conventional cigarettes is important in enabling users to gauge their useage and hence important for nicotine reduction useage; users find correlating useage of conventional e-cigarettes to their previous tobacco consumption difficult and this lack of transparency inhibits broader adoption of e-cigarettes, despite the significant body of scientific opinion that holds e-cigarettes to be very considerably safer than conventional cigarettes.
A single dose may also be any other quantity set as equivalent to a single dose, for example by the end-user, or automatically by the PV or its case if for example the end-user is following a nicotine reduction program. This generalisation applies throughout this specification and to all of the various innovative features described in it.
Embodiments may provide a rechargeable case battery where the portable charging and re-filling case is adapted to allow the PV to recharge its battery from the rechargeable case battery. The portable charging and re-filling case may offer the advantage that a user is able to simultaneously refill the PV with e-liquid and also recharge the battery of the PV. This ensures that, whenever the PV is withdrawn from the case, it can have sufficient e-liquid and power to provide a good vaping experience.
The portable charging and re-filling case may comprise a PV holder for housing the PV. The holder may support the PV in a specific position, provide storage, and enable refilling and charging of the PV.
The PV holder may comprise a biasing means for receiving a PV in a support position. The biasing means may be arranged such that depressing the PV causes the biasing means to allow the PV to engage with the refill mechanism, in a refill position. To refill the PV with a dose of vapour liquid the PV may be inserted into the holder. The holder may be a drawer such that when the PV is placed in the drawer, pushing the PV down allows the PV to engage with the refill mechanism so that e-liquid is pumped into the PV, filling the e-liquid chamber of the PV with one dose of e-liquid.
Alternatively, the PV holder may be rotatably connected to the portable charging and re-filling case such that the PV holder can move between an open and closed configuration, the open and closed positions having corresponding PV positions, wherein in the closed configuration the PV engages with the refill mechanism to receive a dose of e-liquid and in the open configuration the PV is disengaged from the refill mechanism.
The refill mechanism may comprise a pump. In such an example, interaction between the PV and the refill mechanism may cause the pump to deliver a measured dose of e-liquid to the PV. The refill mechanism may comprise a refill valve. The refill mechanism may be electronically controlled. A more detailed walk-through of the e-liquid transfer mechanism will be given later.
The portable charging device or case may comprise a counter/measuring system for counting the number of times the PV has been refilled from the e-liquid reservoir. The counter may be resettable and the portable charging and re-filling case may display a value provided by the counter corresponding to the number of times the PV has been refilled from the e-liquid reservoir in the case. The value may be the number of times the PV has been refilled from the reservoir since the last time it was reset, or it may be the total number of times a dose of e-liquid has been supplied by the reservoir by the refill mechanism. The data may be displayed or stored on a processor within the portable charging and re-filling case to be transmitted by wire or wirelessly to a secondary device for analysis and display, such as a smartphone, a wearable device, a portable computer or directly to the internet. Further, monitoring of usage may be used to determine when the e-liquid in the reservoir is nearly depleted and thus prompt the replacement of the fluid reservoir (by automatically ordering a replacement (or a week or a month's worth of replacements, or some other quantity, at the user's option) from an e-fulfilment platform that will then deliver direct to the user, or advising the user that a replacement will be needed, for example).
Embodiments may be further adapted to vary the amount of e-liquid in a single dose, and such variation may be based on prior usage of the PV (as monitored by a counter for example). In this way, the amount of e-liquid (or the concentration within the vapour fluid) in a delivered dose may be gradually reduced over time, helping a user to reduce consumption of a substance in the vapour fluid (such as nicotine or caffeine, for example). Such a concept may be extended to enabling a user to indicate a time period over which they wish to reduce consumption and by how much. Based on such an indication, an embodiment may moderate the amount of e-liquid in a single dose such that the desired reduction in consumption is achieved automatically, and over a set period of time or following a specific cessation program.
The e-liquid reservoir may be a liquid cartridge which is removable from the portable charging and re-filling case such that it can be easily and quickly replaced by a user, without mess or risk of spillage. Therefore, when the e-liquid reservoir is depleted a user may insert a new liquid cartridge so that the reservoir is replete.
The PV may comprise a liquid chamber for holding a dose of e-liquid, wherein the PV is adapted to engage with the portable charging and re-filling case in order to receive a dose of e-liquid from the fluid reservoir. The PV may comprise a PV valve.
Engagement of the PV valve and refill valve may allow a dose of e-liquid to be pumped from the reservoir of the portable charging and re-filling case to the fluid chamber of the PV. Therefore, when the PV is in or moved to a refill position, a dose of e-liquid may be delivered to the PV. When the PV is not engaged with the refill mechanism, the PV valve may be closed so that the e-liquid is stored in the PV.
In the following section, we will describe the PV and case, with reference to the Figures.
Referring to
In use, the e-cigarette PV 1 is placed in the electronic PV holder or receptacle chassis 2 and the chassis 2 is then moved to the closed configuration in order to store and/or refill the e-cigarette PV 1. In the closed configuration, the electronic cigarette 1 is in a refill position and can be depressed to engage with a fluid transfer mechanism to receive a dose of e-liquid from the fluid i.e. e-liquid reservoir 3 in the case 100 (typically, 0.1 ml is pumped across, as noted above, for each downwards pumping action). Alternatively, the electronic cigarette 1 may be refuelled upon insertion into the PV holder 2 using some other fluid transfer action, such as a pressurised pump, electrical pump, peristaltic pump etc.
The electronic cigarette 1 may also recharge not only its e-fluid chamber but also its internal battery 59 from the recharge case 100. This offers a user an advantage, in that it is no longer necessary to carry spare cartridges of e-liquid in order to refill the electronic cigarette 1 with e-liquid, or spare batteries to power the PV, as re-filling and re-charging can be achieved directly and without mess from the portable charging and re-filling case 100.
The electronic cigarette 1 is placed into the PV holder 2 in a support position. In the support position, the electronic cigarette is disengaged from the refill mechanism. In an embodiment, a biasing member 87 prevents the electronic cigarette 1 from engaging with the refill mechanism 4 such that the electronic cigarette is maintained in the support position.
To actuate the pump 4, the electronic cigarette 1 is depressed. Depression of the electronic cigarette 1 overcomes the biasing force provided by the biasing member 87 and enables the electronic cigarette 1 to move to a refill position, or to re-fill by virtue of being depressed downwards.
When refilling, the electronic cigarette engages with the refill mechanism 4 to receive a dose of e-liquid. A counter (not shown; part of the electronics in the case) monitors the number of doses dispensed by the refill mechanism 4 and displays the value on a display in the case, and/or transmits by wire (e.g. USB) or wireless (e.g. Bluetooth) the usage data to a secondary device (e.g. a smartphone) with a display, to the user. The counter may display the number of doses dispensed by the refill mechanism 4 since the counter was last reset and/or may display the total number of doses the refill mechanism 4 has dispensed. This offers the user the advantage of having the opportunity to monitor their consumption. The counter may indicate to a user when the fluid reservoir 3 holds a lower volume than a threshold value (e.g. when the vapour fluid in the reservoir is nearly depleted).
Detection that the amount of vapour fluid in the reservoir is below the threshold value may be used to prompt the replacement of the fluid reservoir, by automatically ordering the delivery of a replacement fluid reservoir for example.
In the
Referring to
It will be appreciated that the portable charging and re-filling case 100 is not limited in shape, and may not be rectangular. The refill mechanism 4 may not comprise a pump but some other kind of fluid transfer mechanism, and refilling of the electronic cigarette 1 with electronic cigarette fluid may be achieved by an alternative means. Further, the charging function may also occur using a charging station that is fixed (e.g. desktop based; plugged into a power socket) rather than using a portable charging and re-filling case.
For example, referring now to
In an embodiment, a biasing member not shown prevents the PV from engaging with the refill mechanism such that the PV is in a support position. To actuate the refill mechanism of the portable charging and re-filling case 100, the PV is pushed further in to the hollow barrel. Such further depression of the PV overcomes a biasing force provided by a biasing member and enables the PV to move to a refill position as depicted in
In the refill position, the PV engages with the refill mechanism to receive a dose of e-liquid from the reservoir of the portable charging and re-filling case 100.
Non-pressurised pump technology can be used in this design to dispense a dose of a given volume of e-liquid. The device is made up of a single pump with a hollow control tube. The pump has a chamber with a predefined volume of e-liquid held for dispensing. When the PV is depressed, the e-liquid is forced under pressure from the e-liquid pump out through the pump nozzle and via a one way valve into the PV chamber. As the pump is released, it returns to its original state under a spring mechanism and in doing so draws liquid through the hollow control tube into the liquid chamber to replenish the pump so that it is ready to transfer e-liquid into the PV on the next down-stroke of the PV.
The pump is preferably a pump termed a “high delivery” pump, which makes it possible to fill the bottle by actuating the pump only once. For example, a pump is suitably used having a delivery of 0.1 ml per shot in order to feed the PV chamber.
The pump dosage volume can be predefined or variable dependent upon usage requirements. For variable dosage the travel of the pump can be variably limited with a screw type mechanism. e.g. half the normal pump travel=half the liquid intake and therefore expelled.
Pressurised pump technology may also be used: the liquid cartridge would be pressurised like a small aerosol to move predetermined volumes of liquid. The vapouriser would depress a valve that contains a liquid chamber. As the system is pressurised no ‘pump’ is required, instead fluid moves straight from the cartridge to the PV chamber, which is fixed in volume.
A Working System
In the following section, we will describe a working system. For clarity, we will capitalize defined terms, which are indexed in the Brief Description of the Drawings section. The relevant figures are
The system comprises several main components, a Personal Vaporiser 1 and a portable, personal re-filling and re-charging Case 100.
The entire Receptacle Chassis 2 rotates 15° about a Pivot Screw 18 inside a Case 6, 7 with the Receptacle Chassis 2 being Positively Biased Closed, 0° position, by a Leaf Spring 17 (first shown in
Vaporiser Outer Body 53 and Vaporiser Inner Body 55 are insulated by Bush Vaporiser Body 54. Current is passed to the Vaporiser Inner Body 55 via a wire connected to PCB 60. One leg of the Coil 52 contacts the Vaporiser Inner Body 55, the other Coil Leg contacts Vaporiser Outer Body 53. This can be seen most clearly from
A Pressure Sensor/Transducer 58 is mounted behind the Vaporiser Unit in the Pressure Sensor Housing 57. This is wired to the PCB 60. An Arduino Chip 66 mounted to the PCB 60 is used to monitor, control, set and feedback information pertaining to the vaping functionality.
A 3.7V 140 mAh LiPo Battery 59 sits on the PCB 60. The far end of the PCB 60 is wired to Ring Connector 49 with 4 connections—1 Power, 1 Earth, 2 Signal. Ring Connector 49 is made up of alternating Ring Contacts 42 and Insulation Rings 43, and is mounted on Screw 44 and terminates with End Cap 36.
When air is drawn through the PV 1, the Pressure Sensor/Transducer 58 activates, causing current to be sent to the Coil/Wick Assembly 52. The Coil heats the vaping fluid soaked wick, giving off vapour which entrains into the air stream.
O rings 28 seal the Vaping Chamber 48 from the air path. A unitary (and hence very strong) stainless steel Tube 56 houses all the parts mentioned above with a cut out to allow the RGB LED 64 to display the Status of the PV 1 for both battery power and vaping fluid level. A further small hole sits above the Reset Switch 65 mounted to the PCB 60.
The PV 1 charges its 140 mAh Battery via the Ring Connector 49. Information is also fed back to the PCB Main Case 16 via 2 of the connections on the Ring Connector 49.
If we look now at
Moving to
Once pre-heating is completed, solenoid 22 releases pawl/lever 10 and sliding contact block 5 withdraws away from the PV 1, which is then biased to rise up slightly out of the case 100 by shaft 61 in pump 4, as shown in
The 4 Way Sliding Contact Block 5 connects Power, Earth and 2 Signal Input/Outputs from the PCB Main Case 16 to the PV PCB 60. A mechanical Interlock between the 4 Way Sliding Contact Block 5 and the PV 1 is incorporated in the design: the body 46 of the 4 Way Sliding Contact Block has a finger protrusion which engages with an undercut on the PV ring connector 49 providing the interlock facility. This is clearest when comparing
The 4 Way Sliding Contact Block 5 is normally biased away from and out of contact with the Ring Connector 49 on the PV by a helical Spring 23 when mounted in the Receptacle Chassis 2 in the Open 15° position and with the Pawl/Lever in the disengaged 6° position—
The 4 Way Sliding Contact Block 5 is pushed into contact with the PV Ring Connector 49 when the Receptacle Chassis 2 is rotated back into the Case 6 & 7 to the Closed 0° position—e.g. when storing the PV, as shown in
A Cam Block 8 is fastened to the Case 6 & 7. When the Receptacle Chassis 2 rotates into the Case 6 & 7 the Spring 23 biasing the 4 Way Sliding Contact Block 5 is compressed as the 4 Way Sliding Contact Block 5 bears against the Cam Block 8.
The 4 Way Sliding Contact Block comprises 4 Contact Fingers 24—
It would be possible also to include power control buttons, dials etc on the Case 100 itself, although this would add to complexity and cost. A Display is provided in the Receptacle Chassis to communicate the Device status to the user.
We will now look at the details of the fluid transfer mechanism. The relevant figures are
Fluid transfer operation is as follows: the PV 1 is dropped into the Receptacle Chassis aperture 2 where it comes to a stop against the top of the Pump 4. Depressing the PV 1 further against the Pump 4 causes a further 3 mm linear travel & the transfer of a metered dose of e-liquid vaping fluid from the Receptacle Chassis 2 to the PV 1. Approximately 0.1 ml of e-liquid is transferred per pumping action. The reservoir in the PV can typically store 1 or 2 ml of e-liquid. The PV 1 Fluid Chamber 48 can be charged by repeatedly pushing the PV 1 down against the Pump 4.
Relaxing hand pressure on the lower section of the Receptacle Chassis 2 allows the Receptacle Chassis 2 to return to its closed 0° position under the Leaf Spring 17 force, closing the PV 1 into Receptacle Chassis 2 for secure storage. The device geometry ensures the top of the PV 1 Cams it in a downward direction against the top inside walls of the Case 6 & 7 when the Receptacle Chassis 2 is returned to its 0° closed position.
The case 100 can accept a custom designed 5 ml Fluid Reservoir 3 which can be fitted and withdrawn from the Receptacle Chassis 2 by pushing in and pulling out. Other sizes of Fluid Reservoir 3 are also possible, typically up to 10 ml. It is retained by means of a Moulded Rim 62 and Sealed to the Pump 4 my means of an integrally Moulded Lip Seal 63. Different types of Vaping Fluid can be easily changed with no disassembly of the Device required.
The detailed operation of the pump 4 will now be described. The relevant figures are
The pump 4 has a non-return ball valve 34 at fluid inlet end 81 and a slide valve at fluid outlet end 82. The non-return ball valve 34 consists of a steel ball bearing that moves within a short slotted tube 83 with retaining barbs at one end and seats into a shallow taper at the other end, closest to the fluid inlet end 81.
The slide valve consists of a through-hole 84 in the piston rod 86 which is covered and revealed by the action of the piston 85 sliding backwards and forwards over the through-hole 84.
The pump has a piston assembly comprising a valve stem 88, a piston rod 86, a piston 85 and a bias spring 87. The valve stem 88 and piston rod 86 are permanently joined together and move as one. The piston 85 slides on the piston rod 86 and in the valve stem 88. A bias spring 87 keeps the piston 85 positioned forward, at the start position of its 3 mm stroke, and covering the slide valve through-hole 84.
Exerting an axial force on the pump's valve stem 88 (e.g. as occurs when the PV 1 is pressed downwards into the Receptacle Chassis 2), causes the piston assembly to move forward inside the pump body, hence pressurising the fluid ahead of the piston 85 in the fluid chamber 80. Non-return ball valve 34 prevents fluid simply discharging back into the fluid reservoir 3.
As the hydraulic pressure increases, it overcomes the force exerted on the piston 85 by the bias spring 87, hence allowing the piston to move backwards relative to the piston rod 86.
The pressurised fluid in the fluid chamber 80 can now escape through the exposed feed-through hole 84 and up the inside of the piston rod 86 and valve stem 88, as the piston assembly completes it's stroke.
A metered volume (0.1 ml) of e-liquid escapes into the PV 1 as the piston assembly reaches the climax of it's stroke.
The pump cycle is now complete. (As a preliminary step, cycling the piston assembly several times may be needed to dispel air from the fluid chamber 80 and replaces it with fluid. The fluid chamber 80 is now charged).
It is possible also to integrate the pump directly into the user-replaceable cartridge. That has some advantages—specifically, if the pump fails, then it is just the cartridge that needs to be replaced, not the entire case. Also, if the pump is part of the case, and different flavours of e-liquid are desired, that requires different cartridges to be swapped in to the case. There may some residue of the previous flavour in the pump, possibly affecting the vaping experience. Integrating the pump into the cartridge eliminates the problem of flavour tainting through previous e-liquid residue in the pump.
This variant is shown in
The combined pump and cartridge includes an overflow valve. This is made up of a tapered valve seat 91 in the body moulding, a steel ball bearing 92 and return spring 93. The tapered valve seat 91 is at the end of a bore slightly larger than the bore of the steel ball bearing 92. There are channels cut into the bore to allow for the flow of fluid in the bypass condition. The taper is 180° juxtaposed from the non-return valve taper.
In normal operation, the overflow valve ball 92 remains seated in it's tapered housing kept in place by the return spring 93. If a condition arises where the hydraulic pressure in the pump fluid chamber 80 exceeds the design pressure, the overflow valve ball 92 is forced off it's seat against resistance offered from the return spring 93. Fluid can pass the steel ball 92 and return to the reservoir chamber 3—this is the bypass condition.
The integrated pump/reservoir/overflow valve can be in one of five different conditions:
Start position—as shown in
Open position—as shown in
Down position—as shown in
Bypass position (this is conditional on the hydraulic design limit being exceeded and hence protects against damaging the pump 4 and the PV 1)—as shown in
Return position—as shown in
We will now look closely at the PV 1 itself.
We earlier looked at a section view of the PV 1 (
For both the perpendicular and parallel arrangements, the vaporiser sits behind the Tip 32, and is made up of a Coil & Wick Assembly 52, Vaporiser Outer Body 53 and Vaporiser Inner Body 55. These are insulated by Bush Vaporiser Body 54. Current is passed to the Vaporiser Inner Body 55 via a wire connected to PCB 60. One leg of the Coil 52 contacts the Vaporiser Inner Body 55, the other Coil Leg contacts Vaporiser Outer Body 53. This can be seen most clearly from
A Pressure Sensor/Transducer 58 is mounted behind the Vaporiser Unit in the Pressure Sensor Housing 57. This is wired to the PCB 60. An Arduino Chip 66 mounted to the PCB 60 is used to monitor, control, set and feedback information pertaining to the Vaping Functionality.
A 3.7V 140 mAh LiPo Battery 59 sits on the PCB 60. The far end of the PCB 60 is wired to Ring Connector 49 with 4 connections—1 Power, 1 Earth, 2 Signal.
When air is drawn through the PV 1, the Pressure Sensor/Transducer 58 activates, causing current to be sent to the Coil/Wick Assembly 52. The Coil heats the vaping fluid soaked wick, giving off vapour which entrains into the air stream.
O rings 28 seal the Vaping Chamber 48 from the air path. A unitary (and hence very strong) stainless steel Tube 56 houses all the parts mentioned above with a cut out to allow the RGB LED 64 to display the Status of the PV 1 for both battery power and vaping fluid level. A further small hole sits above the Reset Switch 65 mounted to the PCB 60.
The PV 1 charges its 140 mAh Battery via the Ring Connector 49. Information is also fed back to the PCB Main Case 16 via 2 of the connections on the Ring Connector 49.
We will now look at the Ring Connector 49 in more detail.
The Ring Connector Assembly allows the PV 1 to be placed in the Receptacle Chassis 2 in any orientation without it affecting its connectivity. Four Ring Contacts 42 with different length Pins 38, 39, 40, 41 soldered to them are separated by three Insulating Rings 43 which in turn are housed in End Cap—Ring Connector 36. This ensemble is capped with PCB Mounting Cap/Ring Connector 37 fastened with a Screw 44. A wire is soldered to each of the Pins 38, 39, 40, 41 which are then soldered to Pads on PCB 60. The Ring Connector Assembly also has 2 off 1.7 mm Slots which captivate the PV PCB 60. The Ring Connector Assembly is a push fit in the end of the Tube Body—Vaporiser 56.
We will now look at a variable air intake feature. Altering the airflow allows the user to customise the vaping experience to their specific preferences; for example, an experienced vapour looking to produce large quantities of vapour with a variable voltage modding kit type PV might set the voltage used to a much higher power than normal and he would manually fix an air intake that would him to breath in a large volume of vapour. Swapping different air-intakes is generally a matter of screwing out the unwanted air intake and screwing in an air-intake with the required air-hole size(s). One variant of the PV has a variable air intake system in which the casing comprises an inner and an outer tube; the inner tube has a matrix of air-intake holes which can be lined up with air-intake holes in an outer-tube; the user rotates the outer tube until the desired number of holes are lined up. For example, the inner tube could have a regular, square-arrangement or matrix of holes consisting of 6 holes formed radially at 30° intervals repeated over 6 rows. The outer tube then has a square matrix of holes consisting of 6 holes formed radially at 30° intervals repeated over 6 rows. The outer tube slides over inner tube until top rows of holes coincide. The outer tube can be rotated in 30° increments to reveal 0, 1, 2, 3, 4, 5 or 6 columns of holes in inner tube thereby varying cross sectional area of air able to enter the vaporiser body.
Another variant, shown in
We will now walk through the electrical functionality of one implementation. Note that some simplification may be used in the consumer product; what we will describe below is the prototype implementation, which has been optimised for testing.
The steps or logic is as follows:
1) The device starts in standby mode and is therefore inactive
2) The user activates the PV 1 by pressing a microswitch 70, protruding from a slot in the outer case 100.
3) A solenoid 22 mounted on the Receptacle Chassis 2 is powered from battery 68, itself also mounted on Receptacle Chassis 2.
4) Solenoid 22 locks 4 Way Sliding Contact Block 5 against the PV Ring Connector 49.
5) Power to solenoid 22 is limited to 10 seconds unless the Receptacle Chassis 2 is rotated 15°.
6) Receptacle Chassis 2 is rotated 15° against resistance of leaf spring 17 (the user squeezes the bottom of the Chassis into the Case 100).
7) Microswitch 70 activates closing contacts at termination of 15° travel.
8) Upon Microswitch activation, power is sent from Battery 68 to the coil and wick assembly 52 in the PV 1, via 4 Way Sliding Connector 5 and the PV Ring Connector 49.
9) The PV coil 52 temperature is monitored by on board electronics (directly or indirectly as a function of power delivered and time).
10) The power supply to the coil 52 is terminated when the coil 52 reaches its operational temperature, or a defied time has elapsed sufficient for the coil to reach operational temperature; generally this is achieved in under 1s or 2s.
11) The power supply to Solenoid 22 is then terminated, unlocking 4 Way Sliding Connector 5.
12) 4 Way Sliding Connector 5 then retracts 2 mm under spring 23 force, breaking both electrical connection between PV PCB 60 and the EPV Main Chassis PCB 16 and also terminating the mechanical interlock between the PV 1 and 4 Way Sliding Contact Block 5.
13) The PV 1 then springs upwards and clear of the Receptacle Chassis 2, ready for removal.
14) The PV 1 is then removed from Receptacle Chassis 2 by the user and placed between lips.
15) The user inhales on the mouthpiece of PV 1.
16) Air Pressure Sensor 58 in the air stream inside PV 1 senses air movement and sends power to vaporiser Coil 52.
17) The PV 1 on-board Battery 59 supplies power to vaporiser Coil 52.
18) The PV 1 vaporiser Coil 52 temperature is monitored by on-board electronics whilst there is air flow.
19) The PV 1 vaporiser Coil 52 temperature is controlled by cutting & re-instating power from on-board battery 59.
20) After cessation of vaping, the PV 1 is placed back in the Case 100, i.e. Receptacle Chassis 2.
21) The Receptacle Chassis 2 returns to its Standby Mode Position, 0°, under Spring 17 power.
22) A camming action of the Receptacle Chassis 2 closing against Outer Case 6 & 7 imparts linear travel to EPV.
23) Linear travel causes pump 4 to transfer vaping liquid to replenish the PV 1 on-board reservoir.
24) PV 1 is returned to standby mode—inactive in the case.
One further feature is that the vaping experience is a function of a number of variables, such as e-liquid constituents, power delivered to the atomiser, temperature reached, airflow etc. It is possible for the case to store different profiles, such as ‘light’, ‘smooth’, ‘intense’, ‘maximum vapour quantity’, ‘maximum strength’, ‘warmer vapour’, ‘cooler vapour’ etc. Each of these could also be a function of a specific brand of e-liquid. The user can then select on their smartphone app the specific profile and/or variables that meet their preferences.
Also, the specific brands of e-liquid could themselves determine specific variables of the case and PV. Hence a user could select on their smartphone app to use say a ‘Marlboro’ brand of e-liquid, and then the case would automatically configure parameters such as power, temperature etc to give the ideal experience for that specific brand. The parameters could be stored in software or firmware in the case or the PV. It would also be possible to obtain an application from an app store, such as the Apple App Store, or Google Play, specific to a brand of e-liquid; this app would then automatically configure the connected case with the appropriate parameters for optimum performance for that brand of e-liquid.
In the preceding part of Section A, we detailed the operation of the following features:
Feature 1: Combined re-charge and re-fill storage and carrying case
Feature 2: Case with movable PV holder
Feature 3: Re-Filling the PV
Feature 4: PV Locking mechanism
In the following part of Section A, we will look at:
Features 5 & 6. Case With Data Connectivity and E-fulfilment
In this section, we describe in more detail the features of data connectivity and e-fulfillment, first introduced at the start of Section A.
To re-cap on the data connectivity feature: this is a portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes a data processor that controls sending a signal requesting a replacement for a user-replaceable e-liquid cartridge in the case.
The related e-fulfilment method is a method used in portable, personal storage and carrying case adapted specifically for a refillable e-cigarette PV and that re-fills and re-charges the PV, the method including the steps of the case (a) transferring e-liquid from a user-replaceable e-liquid cartridge to the PV and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
The method may include the steps of the case (a) detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone. Note that ‘detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case’ could be direct, or could be indirect, such as inferred from the number of re-fills of the PV that have been completed with that cartridge, or the total number of inhalations made with that cartridge, or any other way of intelligently determining whether a replacement cartridge should be ordered. Machine learning can also be deployed to analyse the user's usage patterns; for example, if the user tends to vape heavily over the weekend but quite lightly during the week, then that can be taken into account when determining when a replacement cartridge should be ordered. Likewise, a degree of direct interaction between e-liquid vendors and end-users is possible; when a user is likely to be ordering replacement cartridge(s), then special offers, or offers for new flavours or new strengths of e-liquid can be sent (e.g. text, instant message etc) to the user, or any other way of cementing brand loyalty.
Enabling the case to send a request for a replacement e-liquid cartridge is very convenient for the user and also ensures that replacement cartridges are supplied in a timely manner—this is especially important when the user is on a tobacco or nicotine reduction programme since if the case runs out of e-liquid, then the user may well be tempted back to using cigarettes. So the efficacy of adopting this system as a cigarette replacement (and health concerns with cigarettes is overwhelmingly the reason given for e-cigarette adoption) benefits greatly from the timely, automatic, background ordering of replacement cartridges.
Optional features (each of which can be combined with others) include the following:
The following section describes these features with reference to the Figures; the relevant Figures are
The re-filling unit itself can measure how much e-liquid is left in its cartridge(s) or tank(s). There are various ways of doing so:
1. Ultrasonic ranger for depth, some a tilt sensor to detect the angle of the cartridge and whether the e-liquid closes an electrical circuit between different electrical contacts at different levels within the cartridge.
2. Measure the weight of the tank(s)
3. Capacitive sensor. As the e-liquid has a different permittivity with respect to air, if concentric circles of conductors are kept in a vertical position, a height change in e-liquid will result in a proportional change in capacitance between the conductors. This can be fed to a circuit which can detect the change and thereby a change in e-liquid level.
4. Using an air pressure sensor at the top of a flexible tube whose bottom is held just above the bottom of the tank. The pressure in the tube changes as the e-liquid level goes up and down. This would be very safe, inexpensive, rugged and reliable.
Each of these techniques can also be used in the PV itself.
Section B. PV: Simplicity and Ease of Use
Preceding Section A focused on aspects of the re-filling and re-charging case. We will now move on, in this new Section B, to describing various features in the e-cigarette PV itself. The PV implements a number of useful features that contribute to the user experience, defined by simplicity and ease of use.
Following on from the consecutive numbering used in Section A, these features are:
We will look at each of these in turn.
Feature 7. Re-fillable and Re-chargeable PV
A significant problem with conventional e-cigarette PV designs is that re-filling a cartridge reservoir is slow and can be messy; it typically requires the user to purchase small bottles of e-liquid and to carefully dis-assemble the PV and then re-fill the cartridge by lining up the nozzle of a bottle and squeezing gently. Equally, removing a spent, non-refillable cartridge and replacing it with a new cartridge, whilst not messy, is wasteful, especially as typical cartridges are not recyclable.
The feature is a re-fillable and re-chargeable e-cigarette PV that is not disassembled in normal use for re-filling or replenishing with e-liquid and is also not disassembled in normal use for battery access or replacement or other battery interaction.
A second aspect of this feature is a re-Tillable and re-chargeable e-cigarette PV with a casing that includes a rechargeable battery, a re-fillable e-liquid reservoir and an atomiser, none of which are removable from, or separable from, any part of the casing in normal use. The body of the casing may be a one-piece, unitary casing (typically circular or square in profile), with components introduced from either or both ends.
A third aspect of this feature is a re-Tillable and re-chargeable e-cigarette PV designed in normal use to only be re-Tillable with e-liquid and re-chargeable when inserted into or otherwise engaged with a carrying case for the PV, the carrying case being specifically adapted to re-fill and re-charge the PV.
Ensuring that the PV does not need to be dis-assembled in normal use, for charging or re-filling e-liquid, leads to a much simpler user experience. Furthermore, it enables the design to be much more robust, since there need be just a single, strong unitary casing with no screw threads allowing dis-assembly; robustness is very important for a consumer device that will be returned to and withdrawn from its case thousands of times, dropped and generally not treated gently.
A fourth aspect of this feature is a re-Tillable and re-chargeable e-cigarette PV with a tip that includes (a) an e-liquid filling aperture that is designed to engage an e-liquid transfer mechanism (b) one or more vapour outlets distributed around the e-liquid filling aperture; and electrical charging contacts spaced apart from the tip.
The relevant Figures are
PV 1 is not dis-assembled in normal use for re-filling the reservoir or otherwise replenishing or replacing the substance. The battery 5 in the re-filling unit 1 also charges the battery in the PV 1 whilst PV 1 is stored in the re-filling unit 1.
The detailed design of the working prototype, shown in
Feature 8. PV With Pre-heat
Conventional e-cigarettes often only start heating the atomiser once an inhalation is detected; as a result, the first inhalation can give quite a poor experience and it is only after two or three inhalations that the atomiser has sufficiently heated the e-liquid that a good vaping experience is provided.
In this section, we describe a number of different ‘pre-heat’ features. With these ‘pre-heat’ feature, because the PV can start heating automatically, there is no need for an ‘on’ switch in the PV, contributing to the simplicity of the user experience, and also reducing cost.
The first pre-heat feature is a portable, personal storage and carrying case for an e-liquid e-cigarette PV that starts providing power to heat an electrical atomising element in a PV automatically when the case in which the PV is stored is opened. By using the battery in the case to provide the power for this pre-heating, this saves depleting the battery in the PV.
The second ‘pre-heat’ feature is an e-cigarette PV that automatically heats an electrical atomising element when the PV detects that it is no longer in electrical contact with the charging contacts in a portable carry case in which it is stored (e.g. when the case is opened and the PV pops up out of the case).
The first and second pre-heat features can be combined—e.g. the first phase is for the battery in the case to provide power for pre-heating when the case is opened; the second phase is for the battery in the PV to take-over heating when it detects that the PV is no longer in contact with the electrical power contacts in the case and hence can no longer rely on power from the case. Normally, this second phase occurs only once the pressure sensor in the PV detects that the user is inhaling.
A third pre-heat feature is a portable, personal storage and carrying case for an e-liquid e-cigarette PV which includes a locking system to lock the PV securely in a heating position during which time the PV is heating using power from a power source in the case and, after the PV has been sufficiently heated, to release the locking mechanism. The case automatically may move the PV to a position which allows it to be readily removed from the case by an end-user once the PV has been sufficiently heated. The user can also press the PV back down when it is in the case to initiate heating.
In this section, we also introduce the feature of the PV automatically indicating when it has reached the correct operating temperature: A personal vapourising device storing a substance to be vapourised, the device including a means of indicating by visual cue, audible cue, touch feedback, haptic, vibration, heat or other sensory signal, or prompt, when the device has sufficiently heated the substance to a predetermined temperature or for a predetermined time, so that the device is ready for use. Hence, the PV (or indeed the case) may show when the PV is ready for use because heating to an operational level has been reached or heating for a predefined time has occurred. For example, a simple LED may glow when the PV is ready for inhalation.
This kind of indicator is very useful because if the user tries to inhale before the atomizer is effectively able to create a vapour with the correct characteristics (which happens if the e-liquid is too cool and viscous), then the user experience is very poor.
Optional features of the PV (each of which can be combined with others) include the following:
The following section describes these features with reference to the Figures; the relevant Figure is
A: As the vapouriser leaves the case electrical contact is broken with the case and the vapouriser automatically starts to heat the liquid (pre-heating)
B: Shows how the charge contacts between case and PV are broken as the PV is removed from the case
C: A light on the PV flashes or glows when the PV is ready to use, as shown schematically by the small circle with radial lines. The ‘ready’ indication could instead or in addition be a vibration or sound as well.
Pre-heating can also start when the case is simply opened and before the PV is withdrawn (the user may set (e.g. via a smartphone app) whether pre-heating starts at merely opening the case, or only when the PV is withdrawn from the case). Starting the heating process whilst the PV is still fully in the case enables the battery in the case to be used to provide power (typically by topping up the charge in the PV's internal battery as that internal battery provides the current to the atomizer). The detailed design of the working prototype, and fully described in Section A above (in particular
This document also describes (Feature 13) a single capsule dispenser, in which the PV uses a small capsule with e-liquid and that capsule is extracted from a dispenser by the user inserting the PV into the dispenser; a single capsule is then engaged onto the end of the PV. In this variant, pre-heating of the e-liquid begins when the device is engaged into a case so as to securely engage a capsule including the substance to be vapourised; the PV includes the same kind of indicator to show that the PV is ready for use (e.g. the correct operating temperature has been reached); an alternative is that the PV pops out of the case when it is ready for use.
In each case, the temperature is not typically measured directly (although it may be); instead, that can be inferred from the current drain, resistance of the atomizer heating element, and any other relevant factor(s). Using the elapsed time of heating can be a simple and effective proxy for e-liquid temperature with this system, especially as the local battery in the PV will generally be fully charged or close to fully charged when heating starts, since it is continuously charged whilst the PV is stored in the case. Also, because the PV itself and the case can have knowledge of when the PV was last used and for how long, the remaining charge in the PV battery can be reliably inferred and the predicted time of heating can be automatically altered to compensate for varying levels of charge. In conventional PVs with a small rechargeable battery, time can generally not be used as a proxy because users do not reliably keep the battery close to fully charged.
Feature 9. PV With Dosage Indication
In this section, we describe the feature of an e-cigarette PV that indicates consumption of e-liquid using a visual indicator that extends or moves down the body of the PV away from the mouthpiece. The visual indicator moves or extends fully to indicate that a single dose has been consumed.
Optional features of the PV (each of which can be combined with others) include the following:
This feature also encompasses a personal vapourising device including a humidity sensor capable of monitoring humidity changes and therefore capable of evaluating how much vapour the device is producing.
Optional features of the PV (each of which can be combined with others) include the following:
This feature also encompasses a portable unit for storing a portable vapourising device, in which the unit is programmed to prevent release of a personal vapouriser device for predetermined amounts of time as an aid to cessation or reduction of substance usage. Time may be indicated through coloured lights or a countdown timer on the portable unit, or via data transmitted to a secondary device that could display this information.
The following section describes these features with reference to the Figures; the relevant Figures are
An example of vapouriser including an indication of how much substance has been vapourised is shown in
There are various ways to indicate when a single or end-user set dose of the e-liquid has been consumed or vapourised.
A: A light moves down the vapouriser as if it is ‘burning down’. A similar visual indicator is shown in
B: Single light changes colour to show how much has been inhaled. A traffic light system (green, amber, red) or change in brightness of light (dimming with usage) could be used and when the light shows red or is fully dimmed out it means that the dose has been provided; the PV may at this time stop working for a set period if the user is on a nicotine or smoking cessation or reduction programme.
C: the light, at one end of, or anywhere on the PV, changes colour, as above.
A conventional PV can be adapted to use this feature:
Feature 10. PV Drip Prevention
In this section, we describe several drip-prevention features in the PV.
The first feature is a PV includes a tip that includes (a) an e-liquid filling aperture that is designed to engage an e-liquid transfer mechanism, the aperture being centrally positioned along the long axis of the PV, the aperture being connected to an e-liquid storage chamber in the PV; (b) one or more vapour outlets distributed around the e-liquid filling aperture; and in which the vapour outlets are connected by passages to a vapour chamber including a vaporising element, and the vapour chamber is sealed from the e-liquid storage chamber.
The second feature is a PV with e-liquid leak suppression where an e-liquid filling aperture in the PV is adapted to align, when inserted into a re-filling unit, with a hollow tube that is part of a fluid transfer system in the re-filling unit, and the aperture includes a flexible seal through which the tube is inserted or passes, the seal ensuring that any drips of e-liquid are retained within the PV when the PV is withdrawn from or removed from the re-filling unit.
The third feature is a PV with e-liquid leak suppression where the vapour passage is not a straight through path from the atomiser but instead includes at least one turn and terminates in one or more vapour outlets distributed around an e-liquid ingestion nozzle positioned centrally along the long axis of the PV.
Optional features of the PV (each of which can be combined with others) include the following:
These features also encompass a personal vapouriser comprising a unit storing a substance to be vapourised, an atomizer and a passage connecting the atomizer to a mouthpiece through which vapour may be drawn by a user, wherein the passage is lined with an absorbent material to absorb any droplets that escape from the unit, without impeding the flow of vapour through the passage.
The detailed design of the working prototype, fully described in Section A above, also exemplifies the above first and second features.
The following section further describes these features with reference to the Figures; the relevant Figures are
The choice of absorbent material is important:
Absorption materials should not absorb moisture in vapour suspension as this would harm inhalation, only liquids that are free moving in the vapouriser case are absorbed. The hydrophilic material could also be changed periodically to ensure the vapouriser performance is not reduced.
Section C: User-replaceable E-liquid Cartridge
Whereas Section A focused on the storing and carry case, and Section B focused on the PV, in this Section C we describe the features of the user-replaceable e-liquid cartridge.
Following the consecutive numbering in earlier sections:
Feature 11. User-replaceable E-liquid Cartridge
A first feature is a user-replaceable e-liquid cartridge adapted to be inserted into or attached to portable, personal storage and carrying case for an e-liquid e-cigarette PV.
A complimentary feature a portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes a user-removable e-liquid cartridge.
Key subsidiary features:
In this section, we describe in more detail the feature of the re-filling unit including multiple user-replaceable cartridges/chambers: A portable unit for re-filling a reservoir in a portable vapourising device, the unit including multiple user-replaceable cartridges or chambers, each containing a substance to be vapourised, in which the unit enables the portable vapourising device to be filled with one specific substance, or a predetermined mixture of two or more substances.
Optional features (each of which can be combined with others) include the following:
Combining the multi cartridge/chamber approach with the features of the Feature 5 ‘Intelligent case’ leads to many useful and novel features: for example, the case can learn which flavours/strengths of e-liquid the user prefers, possibly as a function of time of day, location, day of the week, time of the day. Like a good personal assistant, the case can then prepare in advance the right flavour/strength given these factors or even suggest that it does so to the user (e.g. a message could appear on the user's smartphone app that exchanges data with the PV and/or case). The case and/or related smartphone app (or any other kind of connected electronic device, such as wearable glasses, a smartwatch etc) also recommend new flavour(s) or other things that the user may like, in much the same way as an online music service.
The following section describes these features with reference to the Figures; the relevant Figures are
An example of a portable charging and re-filling case equipped with four separate cartridges (numbered 1, 2, 3 and 4) is shown in
The carriage has small valves (not shown) used to permit or prevent e-liquid flowing from each cartridge through to the refilling mechanism, under the control of the software and processor in the unit (which may in turn be under the control of the user's smartphone or other device—typically, the user would enter the desired mix into an app running on a smartphone, and the smartphone would then send the appropriate control data to the processor in the unit; the smartphone can be replaced by any other suitable type of computing device, including wearable computing devices receiving touch based and/or spoken commands). The unit may also include a touch screen that enables the user to enter the desired mix directly into the unit. Mixing of the e-liquids can occur in the carriage itself, or in a separate chamber on leaving the cartridge.
In Step A, the electronics in the case record the level of the cartridges.
In Step B, when the vapouriser is inserted into the case it transfers its usage data to the electronics in the case.
In Step C, the case gives a visual indication when at least one cartridge level is low. This can take into account current levels in the cartridge(s), and also predicted future levels taking into account the rate of consumption by the user and how much e-liquid is left in the PV itself.
In Step D, the case sends data to a connected smartphone device to inform of the low cartridge level. The case may take into account how much e-liquid is left in or has been consumed by the vapouriser, and the rate at which it has been consumed in the past, when determining whether to alert the user or order replacement cartridges.
The smartphone can display a message such as ‘Order replacement Cartridge 2, which is nicotine strength xx?’, or “We predict that you will run out of e-liquid nicotine strength xx at your current consumption rate in 4 days, shall we re-order?” together with a ‘Buy Now’ option. If the user selects the ‘Buy Now’ option, then a message is sent over the internet to an e-fulfillment provider, who then sends out the replacement cartridge to the user, who then installs it into the case.
The above ‘Multi-liquid’ cartridge can be controlled by an electro-mechanical valve system that regulates the volume of liquid flowing through the valve, whereby moving a pin controls the flow and quantity of liquid into an anti-chamber, in turn creating a defined mixture which is then injected into the vapouriser by either a non-pressurised or pressurised pump system. This could be electronically controlled to mix a predefined volume and mixture of liquids. Examples being
In this section, we introduce the feature of the PV including a hygienic mouthpiece: A personal vapourising device including a housing and a mouthpiece, in which the mouthpiece is extendable from and retractable within a body of the device.
Optional features of the PV (each of which can be combined with others) include the following:
The following section describes these features with reference to the Figures; the relevant Figures are
Feature 13. Single Capsule Dispenser
In this section, we introduce the feature of a dispenser storing multiple capsules, each containing a substance to be vapourised, wherein the dispenser enables a personal vapourising device to be inserted into the dispenser to securely engage a capsule.
Optional features of the capsule dispenser (each of which can be combined with others) include the following:
The following section describes these features with reference to the Figures; the relevant Figure is
The PV can be withdrawn from the case, with the capsule securely attached. A single capsule typically includes e-liquid equivalent to a single cigarette. A single capsule may also include an amount of substance designed for a cigarette or nicotine cessation or reduction program—hence the stack of capsules shown in
Feature 14. Single Capsule PV
In this section, we introduce the feature of a PV with an ejectable single-dose capsule: A personal vapouriser device including a capsule containing substance to be vapourised at one end of a housing furthest from the mouthpiece and where the capsule is ejected by the user pressing a component in the device.
Optional features of the PV (each of which can be combined with others) include the following:
This feature encompasses also a personal vapouriser comprising a unit storing a substance to be vapourised, and a mouthpiece at one end, in which the reservoir storing the substance to be vapourised is placed towards the end furthest from the mouthpiece.
Optional features of the PV (each of which can be combined with others) include the following:
The following section describes these features with reference to the Figures; the relevant Figures are
Feature 15. Various Constructional Improvements
This section describes a broad range of constructional improvements; the relevant Figures are
Appendix 1: Consolidated Concepts Summary
This section summarises the most important high-level features described above; an implementation of the invention may include one or more of these high-level features, or one or more of the key subsidiary features, or any combination of any of these.
As before, we will organise this summary into three sections:
Section C. User-replaceable E-liquid Cartridge
Feature 11. User-replaceable e-liquid cartridge that fits into the portable storage and carrying case
We will start with Section A. To facilitate mapping of these features to future patent claims, we will label the features as ‘concepts’ and number them in a claim-like manner. Any singly dependent concept (e.g ‘the concept of claim 1’) should be construed as also covering all multiple dependencies (e.g. is equivalent to ‘the concept of any preceding concept’). Note also that any concept relating to any feature can be combined with any other concept attributed to any feature.
Feature 1. Combined Re-charge and Re-fill PV Storage and Carrying Case
1. A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes: (a) a power source for re-charging a rechargeable battery in the PV; (b) a reservoir for holding e-liquid; and (c) a fluid transfer system adapted to transfer e-liquid from the reservoir to a chamber in the PV.
2. The case of Concept 1 in which the reservoir for holding e-liquid is a user-replaceable e-liquid cartridge.
3. The case of Concept 2 in which the user-replaceable e-liquid cartridge fits in the case or is attached to the case
4. The case of Concept 2 in which the user-replaceable e-liquid cartridge is designed in normal use to permit e-liquid to escape only if the cartridge is correctly positioned in the case
5. The case of Concept 2 in which the e-liquid capacity of the user replaceable cartridge is at least three times, and preferably five times, greater than the e-liquid capacity of the chamber in the PV
6. The case of Concept 1 in which the fluid transfer system adapted to transfer e-liquid from the case to a reservoir in the PV includes a pump that delivers e-liquid approximately equivalent to a single cigarette for each pumping stroke
7. The case of Concept 1 in which the case includes one or more re-chargeable batteries or one or more user-replaceable batteries, and electrical contacts designed to securely engage with contacts in the PV, for example when the PV is stored in the case.
8. The case of Concept 1 in which the overall size and shape of the case allows it to be kept in a normal pocket.
9. The case of Concept 1 which can be locked or disabled to prevent under-age or unauthorised use.
10. The case of Concept 9 which can be locked or disabled to prevent under-age or unauthorised use and can be unlocked using data sent or exchanged with the authorised user's smartphone
11. The case of Concept 1 in which the case includes a user-removable e-liquid cartridge and the combination of cartridge and case forms in normal use a portable, personal device for the storage, carrying of the PV and its re-filling with e-liquid.
12. The case of Concept 1 which starts providing power to heat an electrical atomising element in a PV automatically when the case in which the PV is stored is opened.
13. The case of Concept 1 which also shows when the PV is ready for use because heating to an operational level has been reached or heating for a predefined time has occurred.
14. The case of Concept 1 in which the case can fill the PV by combining e-liquid from several different e-liquid compartments
15. The case of Concept 1 in which the case includes several user-removable e-liquid cartridges and can fill the PV by combining e-liquid from several cartridges
16. The case of Concept 1 in which the case includes an overflow channel that enables excess e-liquid that is pumped up from the cartridge but is not stored in the PV to be captured and returned to the cartridge.
17. The case of Concept 1 in which the user-replaceable cartridge includes physical features on its surface, such as raised or lowered portions, that physically engage with complimentary features in the wall of the case aperture into which the cartridge is inserted.
18. The case of Concept 7 in which the physical features form the shape of a word or logo, such as a trademarked word or logo.
19. The case of Concept 1 in which moving a movable holder or chassis, into which the PV has been inserted, brings electrical charging contacts on the PV into direct or indirect engagement with electrical charging contacts in the case that are connected to a power source in the case.
20. The case of Concept 1 which is operable to re-fill the PV with e-liquid if the PV is inserted, fully or in part, into the case, whilst maintaining the PV whole and intact.
21. The case of Concept 1 which is adapted to lock the PV securely in a charging position; and when the PV is locked in the charging position, then electrical charging contacts on the PV are in direct or indirect engagement with electrical charging contacts in the case that are connected to a power source in the case.
22. The case of Concept 1 which includes (a) user-replaceable e-liquid cartridge; and (b) a fluid transfer system adapted to transfer e-liquid from the cartridge to a chamber in the PV; in which the case includes a data processor that controls sending a signal requesting a replacement for a user-replaceable e-liquid cartridge in the case.
23. The case of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate the experience of smoking a cigarette.
24. A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case is adapted to transfer e-liquid to an e-cigarette PV from a user-replaceable e-liquid cartridge in or attached to the case.
Feature 2. Case With Movable PV Holder Feature
1. The case of Concept 1 in which moving a movable holder or chassis, into which the PV has been inserted, brings electrical charging contacts on the PV into direct or indirect engagement with electrical charging contacts in the case that are connected to a power source in the case.
2. The case of Concept 1 in which the movable chassis also has mounted on it an e-fluid reservoir, a battery, a printed circuit board and a fluid transfer mechanism
3. The case of Concept 1 in which the holder pivots about a screw or other form of axis in the case
4. The case of Concept 3 in which the holder is formed as a trigger, so that a user closing his grip on one part of the holder causes the hinged folder to open from the case, enabling a PV stored in the case to be withdrawn from the case.
5. The case of Concept 1 in which the holder includes a channel into which the PV can slide, the channel guiding the PV into the position needed for accurate re-filling with e-liquid
6. The case of Concept 5 in which the channel enables the PV to be moved up and down relative to a pump, acting as the stroke which causes the pump to transfer e-liquid from a reservoir in the case to a chamber in the PV.
7. The case of Concept 1 in which the holder is a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which guides an aperture of the PV into contact with a pump nozzle that fills a chamber in the PV with e-liquid until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
8. The case of Concept 1 in which the PV includes an e-liquid filling aperture or nozzle positioned centrally along the main axis of the PV to minimise any off-centre forces that could otherwise compromise e-liquid sealing and the holder guides that e-filling aperture or nozzle into accurate alignment with a fluid transfer mechanism.
9. The case of Concept 1 in which the holder is a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which, whenever the hinged compartment is closed, cams the PV downwards to prime or activate a pump nozzle that will deliver e-liquid from a cartridge into a chamber in the PV until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
10. The case of Concept 1 in which the holder has to be fully closed to bring the electrical charging contacts on the PV into direct or indirect engagement with electrical charging contacts in the case.
11. The case of Concept 1 in which the movable holder has to be partly closed to bring the electrical charging contacts on the PV into direct or indirect engagement with electrical charging contacts in the case.
12. The case of Concept 1 which is operable to re-fill the PV using a fluid transfer system pump activated by moving relative to the pump the entire, complete PV, whilst the PV is held in the holder.
13. The case of Concept 1 in which the holder is a side-loading holder.
14. The case of Concept 1 in which the holder is manually moved.
15. The case of Concept 1 in which the holder is moved using one or more motors.
16. The case of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
Feature 3: Re-Filling the PV
A portable, personal storage and carrying case for an e-liquid e-cigarette PV which is operable to re-fill the PV with e-liquid if the PV is inserted, fully or in part, into the case, whilst maintaining the PV whole and intact.
2. The case of Concept 1 which is adapted to transfer e-liquid to an e-cigarette PV from a user-replaceable e-liquid cartridge in or attached to the case.
3. The case of Concept 1 which re-fills the PV using a fluid transfer system, whilst the PV is held in a holder of the case in accurate alignment with the fluid transfer mechanism.
4. The case of Concept 1 in which the fluid transfer system is a pump activated by moving the entire, complete PV relative to the pump.
5. The case of Concept 1 in which is operable to re-fill the PV with e-liquid if the PV is inserted, fully or in part, into the case without the need to dis-assemble or puncture the PV.
6. The case of Concept 1 which is operable to re-fill and re-charge the PV, without the need to dis-assemble or puncture the PV, via an e-liquid filling aperture or nozzle formed in one end of the mouthpiece, the e-liquid filling nozzle being separate from the vapour inhalation nozzle(s).
7. The case of Concept 1 in which the PV includes an e-liquid filling aperture or nozzle positioned centrally along the main axis of the PV to minimise any off-centre forces that could otherwise compromise e-liquid and the case guides that aperture or nozzle into accurate alignment with a fluid transfer mechanism.
8. The case of Concept 7 in which the aperture or nozzle aligns with a hollow tube or shaft that is part of a pump and the aperture or nozzle includes a flexible seal through which the tube or shaft is inserted, the seal ensuring that any drips of e-liquid are retained within the PV.
9. The case of Concept 7 in which a tip of the PV includes a fluid trap and absorbent wicking to capture any fluid leakage.
10. The case of Concept 1 in which a hollow e-liquid filing tube or shaft extends up from the central axis of a pump against which the PV is positioned.
11. The case of Concept 1 in which the PV re-fills using a pump activated by depressing and releasing the entire, complete PV whilst the PV is held in a hinged compartment of the case and the PV can slide up and down in the compartment.
12. The case of Concept 1 in which the PV is re-filled by a mechanical camming action caused by the top of the PV being pressed or cammed downwards when it is closed inside a carrying case, the camming action depressing the PV so that it completes a downstroke of the pumping action
13. The case of Concept 1 in which the case includes a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which guides an aperture of the PV into contact with a pump nozzle that fills a chamber in the PV with e-liquid until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
14. The case of Concept 1 in which the case automatically re-fills and re-charges an e-cigarette PV, the case including a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which, whenever the hinged compartment is closed, cams the PV downwards to prime or activate a pump nozzle that will deliver e-liquid from a cartridge into a chamber in the PV until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
15. The case of Concept 1 in which the case the case includes a micro-pump designed to slot into or be received by an aperture in an e-liquid cartridge.
16. The case of Concept 2 in which the case includes a nozzle or aperture operable to engage with a micro-pump formed in the e-liquid cartridge inserted into or attached to the case.
17. The case of Concept 1 in which the case includes a user-removable e-liquid cartridge and the combination of cartridge and case forms in normal use a portable, personal device for the storage, carrying of the PV and its re-filling with e-liquid.
18. The case of Concept 1 in which the case can fill the PV by combining e-liquid from several different e-liquid compartments.
19. The case of Concept 1 in which the case includes several user-removable e-liquid cartridges and can fill the PV by combining e-liquid from several cartridges.
20. The case of Concept 1 in which the case includes an overflow channel that enables excess e-liquid that is pumped up from the cartridge but is not stored in the PV to be captured and returned to the cartridge.
21. The case of Concept 1 in which the user-replaceable cartridge includes physical features on its surface, such as raised or lowered portions, that physically engage with complimentary features in the wall of the case aperture into which the cartridge is inserted.
22. The case of Concept 21 in which the physical features form the shape of a word or logo, such as a trademarked word or logo.
23. The case of Concept 1 in which the if the PV is pumped just once, then the case transfers e-liquid approximately equivalent to a single cigarette to the PV and if the PV is pumped five times then the case transfers e-liquid approximately equivalent to five cigarettes.
24. The case of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
25. A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case is adapted to transfer e-liquid to an e-cigarette PV from a user-replaceable e-liquid cartridge in the case.
26. A portable, personal storage and carrying case for an e-liquid e-cigarette PV which re-fills the PV using a fluid transfer system, such as a pump activated by moving relative to the pump the entire, complete PV, whilst the PV is held in a holder of the case in accurate alignment with the fluid transfer mechanism.
Feature 4: PV Locking Mechanism
1. A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case is adapted to lock the PV securely in a charging position; and when the PV is locked in the charging position, then electrical charging contacts on the PV are in direct or indirect engagement with electrical charging contacts in the case that are connected to a power source, such as a rechargeable battery, in the case.
2. The case of Concept 1 in which the case automatically charges the PV only if the PV is fully inserted and an inter-lock operates to secure the PV in position.
3. The case of Concept 1 in which the case automatically locks the e-cigarette PV into a secured re-charging position when the case is fully closed for storage and carrying the PV.
4. The case of Concept 1 in which electrical charging contacts in the case are positioned on a sliding contact block that moves from a first position in which it is not physically engaged with the PV and a second position in which it is itself locked in position and also secures the PV in position.
5. The case of Concept 1 in which the sliding contact block also includes data transfer contacts that engage directly or indirectly with data transfer contacts in the PV.
6. The case of Concept 1 in which the electrical charging contacts inductively transfer power from the case to the PV.
7. The case of Concept 1 which can be locked or disabled to prevent under-age or unauthorised use.
8. The case of Concept 7 which can be locked or disabled to prevent under-age or unauthorised use and can be unlocked using data sent or exchanged with the authorised user's smartphone.
9. The case of Concept 1 which includes a locking system to lock the PV securely in a heating position during which time the PV is heating using power from a power source in the case and, after the PV has been sufficiently heated, to release the locking mechanism.
10. The case of Concept 9 in which the case automatically moves the PV to a position which allows it to be readily removed from the case by an end-user once the PV has been sufficiently heated.
11. The case of Concept 1 in which the case can be locked as part of a user-defined nicotine or smoking reduction or cessation program.
12. The case of Concept 11 in which locking of the case can be over-ridden by a user but the case then sends an alert signal to a connected smartphone, which tracks the over-ride.
13. The case of Concept 12 in which the smartphone also shares the over-ride, including sharing with other friends of the user connected via a social network.
14. The case of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
15. Method of interacting with an e-liquid e-cigarette PV, including the steps of (a) locking the e-cigarette PV securely in a charging position in a case for a period defined by a nicotine or smoking reduction or cessation program; (b) a user manually over-riding that lock; (c) notifying friends of the user that the lock has been over-ridden.
Feature 5 & 6: Case with Data Connectivity & e-Fulfilment
1. A portable, personal storage and carrying case for an e-liquid e-cigarette PV in which the case includes (a) user-replaceable e-liquid cartridge; and (b) a fluid transfer system adapted to transfer e-liquid from the cartridge to a chamber in the PV; in which the case includes a data processor that controls sending a signal requesting a replacement for a user-replaceable e-liquid cartridge in the case.
2. The case of Concept 1 in which the case or cartridge detects the level of or quantity of e-liquid in the user-replaceable cartridge.
3. The case of Concept 1 in which the signal is sent to a connected smartphone which in turn connects to an e-fulfilment platform.
4. The case of Concept 1 in which the data processor sends a signal to a connected smartphone indicating that a battery used to re-charge the PV in the case needs re-charging.
5. The case of Concept 1 which measures how much e-liquid is left in the user-replaceable cartridge or whether a replacement is needed by using an ultrasonic ranger.
6. The case of Concept 1 which measures how much e-liquid is left in the user-replaceable cartridge or whether a replacement is needed by using a tilt sensor to detect the angle of the cartridge and whether the e-liquid closes an electrical circuit between different electrical contacts at different levels within the cartridge.
7. The case of Concept 1 which measures how much e-liquid is left in the user-replaceable cartridge or whether a replacement is needed by measuring the weight of the cartridge.
8. The case of Concept 1 which measures how much e-liquid is left in the user-replaceable cartridge or whether a replacement is needed by using a capacitive sensor.
9. The case of Concept 1 which measures how much e-liquid is left in the user-replaceable cartridge or whether a replacement is needed by using an air pressure sensor at the top of a flexible tube whose bottom is held just above the bottom of the cartridge.
10. The case of Concept 1 which predicts future levels of e-liquid in the cartridge taking into account the rate of consumption by the user and how much e-liquid is left in the PV itself.
11. The case of Concept 1 which predicts future levels of e-liquid in the cartridge taking into account how much e-liquid is left in the PV itself.
12. The case of Concept 1 which includes a cartridge with several compartments and can fill the PV by combining e-liquid from several compartments and the data processor controls sending a signal requesting a replacement for one or more compartments in the cartridge.
13. The case of Concept 1 which includes several user-removable e-liquid cartridges and can fill the PV by combining e-liquid from several cartridges and the data processor controls sending a signal requesting a replacement for one or more of the cartridges.
14. The case of Concept 1 which gives a visual indication when at least one cartridge level is low or needs replacement.
15. The case of Concept 1 which sends a signal to a connected smartphone indicating that a battery used to re-charge the PV in the case needs re-charging.
16. The case of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
17. Method used in portable, personal storage and carrying case adapted specifically for a refillable e-cigarette PV and that re-fills and re-charges the PV, the method including the steps of the case (a) transferring e-liquid from a user-replaceable e-liquid cartridge to the PV and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
18. The method of Concept 17 including the steps of the case (a) detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
19. The method of Concept 17 in which the signal is sent to a connected smartphone which in turn connects to an e-fulfilment platform.
20. The method of Concept 17 including the step of a machine learning algorithm or system learning the user's e-liquid consumption patterns and using that to determine when to send the signal requesting the replacement e-liquid cartridge.
21. The method of Concept 17 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
Feature 7A: Re-fillable and Re-chargeable PV
1. A re-fillable and re-chargeable e-cigarette PV that is not disassembled in normal use for re-filling or replenishing with e-liquid and is also not disassembled in normal use for battery access or replacement or other battery interaction.
2. The e-cigarette PV of Concept 1 in which the PV includes a rechargeable battery, re-fillable e-liquid reservoir and an atomiser, all contained within a casing, and none of which are removable from, or separable from, any part of the casing in normal use.
3. The e-cigarette PV of Concept 1 in which the PV is designed in normal use to only be re-Tillable with e-liquid and re-chargeable when inserted into a carrying case for the PV that is specifically adapted to re-fill and re-charge the PV.
4. The e-cigarette PV of Concept 1 in which the PV includes an e-liquid filling aperture positioned centrally along the main axis of the PV to minimise any off-centre forces that could otherwise compromise e-liquid sealing.
5. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that re-fills and re-charges the PV, without the need to dis-assemble or puncture the PV, maintaining the PV whole and intact.
6. The e-cigarette PV of Concept 1 in which the case re-fills and re-charges the PV, without the need to dis-assemble or puncture the PV, via an e-liquid filling nozzle formed in one end of the mouthpiece, the e-liquid filling nozzle being separate from vapour inhalation nozzle(s).
7. The e-cigarette PV of Concept 1 in which an aperture in the PV aligns with a hollow tube or shaft that is part of a pump and the aperture includes a flexible seal through which the tube is inserted, the seal ensuring that any drips of e-liquid are retained within the PV.
8. The e-cigarette PV of Concept 1 in which the tip of the PV includes a fluid trap and absorbent wicking to capture any fluid leakage.
9. The e-cigarette PV of Concept 1 in which a hollow tube or shaft extends up from the central axis of a hollow compartment into which the PV is inserted.
10. The e-cigarette PV of Concept 1 in which the PV re-fills using a fluid transfer system in which the PV moves relative to a pump.
11. The e-cigarette PV of Concept 10 in which the PV re-fills using a pump activated by depressing and releasing the entire, complete PV whilst the PV whilst it is held in a holder, the PV sliding up and down within the holder.
12. The e-cigarette PV of Concept 1 in which the PV is re-filled by a mechanical camming caused by the top of the PV being pressed or cammed downwards when it is closed inside a carrying case, the camming action depressing the PV so that it completes a downstroke of the pumping action.
13. The e-cigarette PV of Concept 1 in which the PV is filled by a motor moving the PV up and down in relation to a pump, or the pump in relation to the PV.
14. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that includes a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which guides an aperture of the PV into contact with a pump nozzle that fills a chamber in the PV with e-liquid until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
15. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that automatically re-fills and re-charges the e-cigarette PV, the case including a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which, whenever the hinged compartment is closed, cams the PV downwards to prime or activate a pump nozzle that will deliver e-liquid from a cartridge into a chamber in the PV until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
16. The e-cigarette PV of Concept 1 in which the case automatically re-fills an e-cigarette PV via an e-liquid nozzle at the centre of the mouthpiece end of the PV from a user-replaceable e-liquid cartridge in the case, the case including a micro-pump designed to slot into or be received by an aperture in the cartridge.
17. The e-cigarette PV of Concept 1 in which a nozzle or aperture in the PV engages with a micro-pump formed in a user-replaceable e-liquid cartridge.
18. The e-cigarette PV of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
19. The e-cigarette PV of Concept 1 which is designed to be withdrawn from the case prior to re-filling and then inserted against a nozzle in the case for re-filling.
20. A re-fillable and re-chargeable e-cigarette PV in which the PV includes a rechargeable battery, re-fillable e-liquid reservoir and an atomiser, all contained within a casing, and none of which are removable from, or separable from, any part of the casing in normal use.
21. A re-fillable and re-chargeable e-cigarette PV in which the PV is designed in normal use to only be re-Tillable with e-liquid and re-chargeable when inserted into a carrying case for the PV that is specifically adapted to re-fill and re-charge the PV.
Feature 7B: Re-fillable and Re-chargeable PV
1. A re-fillable and re-chargeable e-cigarette PV in which the PV has a tip that includes (a) an e-liquid filling aperture that is designed to engage an e-liquid transfer mechanism (b) one or more vapour outlets distributed around the e-liquid filling aperture; and electrical charging contacts spaced apart from the tip.
2. The e-cigarette PV of Concept 1 in which the electrical charging contacts are at the opposite end of the PV compared with the tip.
3. The e-cigarette PV of Concept 2 in which the electrical contacts are incorporated into a contact assembly that includes electrical contacts to transfer power from the case to a battery in the PV and also electrical contacts to transfer data to and/or from the PV.
4. The e-cigarette PV of Concept adapted to be slid into a personal, portable storage and carrying case that can both re-charge a local battery in the PV and re-fill an e-liquid chamber in the PV.
5. The e-cigarette PV of Concept 1 that is not disassembled in normal use for re-filling or replenishing with e-liquid and is also not disassembled in normal use for battery access or replacement or other battery interaction.
6. The e-cigarette PV of Concept 1 in which the PV includes a rechargeable battery, re-fillable e-liquid reservoir and an atomiser, all contained within a casing, and none of which are removable from, or separable from, any part of the casing in normal use.
7. The e-cigarette PV of Concept 1 in which the PV is designed in normal use to only be re-Tillable with e-liquid and re-chargeable when inserted into a carrying case for the PV that is specifically adapted to re-fill and re-charge the PV.
8. The e-cigarette PV of Concept 1 in which the PV includes an e-liquid filling aperture positioned centrally along the main axis of the PV to minimise any off-centre forces that could otherwise compromise e-liquid sealing.
9. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that re-fills and re-charges the PV, without the need to dis-assemble or puncture the PV, maintaining the PV whole and intact.
10. The e-cigarette PV of Concept 1 in which the case re-fills and re-charges the PV, without the need to dis-assemble or puncture the PV, via an e-liquid filling nozzle formed in one end of the mouthpiece, the e-liquid filling nozzle being separate from vapour inhalation nozzle(s).
11. The e-cigarette PV of Concept 1 in which an aperture in the PV aligns with a hollow tube or shaft that is part of a pump and the aperture includes a flexible seal through which the tube is inserted, the seal ensuring that any drips of e-liquid are retained within the PV.
12. The e-cigarette PV of Concept 1 in which the tip of the PV includes a fluid trap and absorbent wicking to capture any fluid leakage.
13. The e-cigarette PV of Concept 1 in which a hollow tube or shaft extends up from the central axis of a hollow compartment into which the PV is inserted.
14. The e-cigarette PV of Concept 1 in which the PV re-fills using a fluid transfer system in which the PV moves relative to a pump.
15. The e-cigarette PV of Concept 14 in which the PV re-fills using a pump activated by depressing and releasing the entire, complete PV whilst the PV whilst it is held in a holder, the PV sliding up and down within the holder.
16. The e-cigarette PV of Concept 14 in which the PV is re-filled by a mechanical camming caused by the top of the PV being pressed or cammed downwards when it is closed inside a carrying case, the camming action depressing the PV so that it completes a downstroke of the pumping action.
17. The e-cigarette PV of Concept 14 in which the PV is filled by a motor moving the PV up and down in relation to a pump, or the pump in relation to the PV.
18. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that includes a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which guides an aperture of the PV into contact with a pump nozzle that fills a chamber in the PV with e-liquid until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
19. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that automatically re-fills and re-charges the e-cigarette PV, the case including a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which, whenever the hinged compartment is closed, cams the PV downwards to prime or activate a pump nozzle that will deliver e-liquid from a cartridge into a chamber in the PV until the pressure in the chamber equals the pressure in an e-liquid cartridge in the case.
20. The e-cigarette PV of Concept 1 in which the case automatically re-fills an e-cigarette PV via an e-liquid nozzle at the centre of the mouthpiece end of the PV from a user-replaceable e-liquid cartridge in the case, the case including a micro-pump designed to slot into an aperture in the cartridge.
21. The e-cigarette PV of Concept 1 in which a nozzle or aperture in the PV engages with a micro-pump formed in a user-replaceable e-liquid cartridge.
22. The e-cigarette PV of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
Feature 8: PV With Pre-heat
1. A re-fillable and re-chargeable e-cigarette PV in which the PV is locked securely in a heating position by a locking system in a portable case, during which time the PV is heating its atomiser whilst connected to a power source in the case and, after the PV has been sufficiently heated, is released from the locking system.
2. The e-cigarette PV of Concept 1 in which the PV is automatically released from the locking system and moved to a position which allows it to be readily removed from the case by an end-user, once the PV has been sufficiently heated.
3. The e-cigarette PV of Concept 1 in which the PV automatically starts heating its atomiser using its own internal power source only when the PV detects that it is no longer in electrical contact with charging contacts in the portable case in which it was stored.
4. The e-cigarette PV of Concept 1 in which the PV is automatically heated whilst connected to a power source in the case only if a mechanical inter-lock operates to secure the PV in position.
5. The e-cigarette PV of Concept 1 in which electrical charging contacts in the case are positioned on a sliding contact block that operates as the mechanical inter-lock and that moves from a first position in which it is not physically engaged with the PV and a second position in which it is itself locked in position and also secures the PV in position.
6. The e-cigarette PV of Concept 5 in which the sliding contact block also includes data transfer contacts that engage directly or indirectly with data transfer contacts in the PV
7. The e-cigarette PV of Concept 1 including inductive power transfer coils.
8. The e-cigarette PV of Concept 1 which can be locked by the mechanical inter-lock to prevent under-age or unauthorised use.
9. The e-cigarette PV of Concept 8 in which the mechanical inter-lock can be locked and unlocked using data sent or exchanged with the authorised user's smartphone
10. The e-cigarette PV of Concept 1 in which the PV is automatically locked into a secured re-charging position when the case is fully closed for storage and carrying the PV.
11. The e-cigarette PV of Concept 1 in which a heating coil is arranged longitudinally along the long axis of the PV.
12. The e-cigarette PV of Concept 1 in which the PV includes a rechargeable battery, re-fillable e-liquid reservoir and an atomiser, all contained within a casing, and none of which are removable from, or separable from, any part of the casing in normal use.
13. The e-cigarette PV of Concept 1 in which the PV designed in normal use to only be re-Tillable with e-liquid and re-chargeable when inserted into the case for the PV, the case being specifically adapted to re-fill and re-charge the PV.
14. The e-cigarette PV of Concept 1 in which the PV has a tip that includes (a) an e-liquid filling aperture that is designed to engage an e-liquid transfer mechanism (b) one or more vapour outlets distributed around the e-liquid filling aperture; and electrical charging contacts spaced apart from the tip.
15. The e-cigarette PV of Concept 1 in which additional heating of the e-liquid is performed by secondary heating elements in the PV e-liquid chamber.
16. The e-cigarette PV of Concept 1 in which heating of the e-liquid to the temperature at which the PV is ready for use can be predicted or inferred with sufficient accuracy because the charge level of the battery in the PV used to provide power to heat the e-liquid is known reliably.
17. The e-cigarette PV of Concept 16 in which the charge level is known reliably because a sensor directly measures that charge level.
18. The e-cigarette PV of Concept 16 in which the charge level is known reliably because it can be assumed to be fully charged because the device is stored in the portable case that includes a battery that automatically charges the battery in the device.
19. The e-cigarette PV of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV using a heated element and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
20. A portable, personal storage and carrying case for an e-liquid e-cigarette PV that starts providing power to heat an electrical atomising element in a PV automatically when the case in which the PV is stored is opened.
Feature 9: PV with Dosage Indication
1. A re-fillable and re-chargeable e-cigarette PV in which the PV indicates consumption of e-liquid using a visual indicator that extends or moves along the body.
2. The e-cigarette PV of Concept 1 in which the visual indicator moves or extends down the body of the PV away from the mouthpiece
3. The e-cigarette PV of Concept 1 in which the visual indicator moves or extends fully to indicate that a single dose of nicotine has been consumed.
4. The e-cigarette PV of Concept 3 in which the single dose is defined by a user.
5. The e-cigarette PV of Concept 3 in which the single dose corresponds approximately to the nicotine in a single cigarette.
6. The e-cigarette PV of Concept 1 in which the visual indicator is a row of LEDs or other indicators and each indicator changes appearance when a single inhalation occurs.
7. The e-cigarette PV of Concept 1 in which the visual indicator is a row of LEDs or other indicators and each indicator changes appearance when inhalations corresponding to smoking a single cigarette occurs.
8. The e-cigarette PV of Concept 1 in which a heating coil is arranged longitudinally along the long axis of the PV.
9. The e-cigarette PV of Concept 1 in which a user can control the airflow through the PV by manually altering the size of air inlet vents in the PV.
10. The e-cigarette PV of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
Feature 10: PV Drip Prevention
1. A re-fillable and re-chargeable e-cigarette PV in which the PV includes a tip that includes (a) an e-liquid filling aperture or nozzle that is designed to engage an e-liquid transfer mechanism, the aperture or nozzle being centrally positioned along the long axis of the PV, the aperture or nozzle being connected to an e-liquid storage chamber in the PV; (b) one or more vapour outlets distributed around the e-liquid filling aperture; and in which the or each vapour outlet is connected by a passage to a vapour chamber including a vaporising element, and the vapour chamber is sealed from the e-liquid storage chamber.
2. The e-cigarette PV of Concept 1 in which the PV has an e-liquid leak suppression feature in which an e-liquid filling aperture or nozzle in the PV is adapted to align, when inserted into a re-filling unit, with a hollow tube that is part of a fluid transfer system in the re-filling unit, and the aperture or nozzle includes a flexible seal through which the tube is inserted or passes, the seal ensuring that any drips of e-liquid are retained within the PV when the PV is withdrawn from or removed from the re-filling unit.
3. The e-cigarette PV of Concept 1 in which the PV is adapted to slot into or engage with a case that re-fills and re-charges the PV, without the need to dis-assemble or puncture the PV, maintaining the PV whole and intact.
4. The e-cigarette PV of Concept 1 in which the passage that connects a vapour outlet to the vapour chamber is lined with material that can absorb e-liquid droplets.
5. The e-cigarette PV of Concept 1 in which the tip of the PV includes a fluid trap and material that can absorb e-liquid droplets to capture any fluid leakage.
6. The e-cigarette PV of Concept 1 in which the vapour passage is not a straight through path from the vapour chamber but instead includes at least one turn.
7. The e-cigarette PV of Concept 1 in which a hollow tube or shaft extends up from the central axis of a hollow compartment into which the PV is inserted.
8. The e-cigarette PV of Concept 1 in which the PV re-fills using a fluid transfer system in which the PV moves relative to a pump.
9. The e-cigarette PV of Concept 8 in which the PV re-fills using a pump activated by depressing and releasing the entire, complete PV whilst the PV whilst it is held in a holder, the PV sliding up and down within the holder.
10. The e-cigarette PV of Concept 1 in which the PV is re-filled by a mechanical camming caused by the top of the PV being pressed or cammed downwards when it is closed inside a carrying case, the camming action depressing the PV so that it completes a downstroke of the pumping action.
11. The e-cigarette PV of Concept 1 in which the PV is filled by a motor moving the PV up and down in relation to a pump, or the pump in relation to the PV.
12. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that includes a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which guides an aperture of the PV into contact with a pump nozzle that fills a reservoir in the PV with e-liquid until the pressure in the reservoir equals the pressure in an e-liquid cartridge in the case.
13. The e-cigarette PV of Concept 1 in which the PV is adapted to slot or engage with a case that automatically re-fills and re-charges the e-cigarette PV, the case including a hinged compartment that the PV is slotted into, mouthpiece end downwards, and which, whenever the hinged compartment is closed, cams the PV downwards to prime or activate a pump nozzle that will deliver e-liquid from a cartridge into a reservoir in the PV until the pressure in the reservoir equals the pressure in an e-liquid cartridge in the case.
14. The e-cigarette PV of Concept 1 in which the case automatically re-fills an e-cigarette PV via an e-liquid nozzle at the centre of the mouthpiece end of the PV from a user-replaceable e-liquid cartridge in the case, the case including a micro-pump designed to slot into an aperture in the cartridge.
15. The e-cigarette PV of Concept 1 in which a nozzle or aperture in the PV engages with a micro-pump formed in a user-replaceable e-liquid cartridge.
16. The e-cigarette PV of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
In this final part of Appendix 1, we will summarise the user-replaceable e-liquid cartridge concepts.
Section C: User-replaceable E-liquid Cartridge
Feature 11: User-replaceable E-liquid cartridge that Fits into the Portable Storage and Carrying Case
1. A user-replaceable e-liquid cartridge adapted to be inserted into or attached to a portable, personal storage and carrying case for an e-liquid e-cigarette PV.
2. The e-liquid cartridge of Concept 1 in which the combination of cartridge and case forms in normal use a portable, personal device for the storage and carrying of the PV and its re-filling with e-liquid.
3. The e-liquid cartridge of Concept 1 in which the cartridge has a casing that is adapted to be fitted by a user into a chamber in the portable, personal storage and carrying case.
4. The e-liquid cartridge of Concept 1 in which the cartridge has an outer surface that forms part of the outside of the case or an extension to the case, with case and cartridge when combined forming an object that in normal use can be stored in a pocket.
5. The e-liquid cartridge of Concept 1 in which the e-liquid capacity of the user replaceable cartridge is at least three times, and preferably five times, greater than the e-liquid capacity of an e-liquid chamber in the PV.
6. The e-liquid cartridge of Concept 1 adapted to engage with a fluid transfer system in the case.
7. The e-liquid cartridge of Concept 6 adapted to engage with a fluid transfer system in the case that is a pump that delivers e-liquid into the PV approximately equivalent to a single cigarette for each pumping stroke.
8. The e-liquid cartridge of Concept 1 in which the e-liquid cartridge is designed in normal use to permit e-liquid to escape from the cartridge only if the cartridge is correctly positioned in or attached to the case.
9. The e-liquid cartridge of Concept 1 in which the cartridge is not substantially deformable in normal use in order to displace fluid from the cartridge.
10. The e-liquid cartridge of Concept 1 in which the e-liquid cartridge is designed to slot inside the portable, personal storage and carrying case for an e-liquid e-cigarette PV with a press fit against a seal and in which the cartridge is formed with a void designed to receive and engage with a micro-pump that is positioned in the case, the micro-pump sealing against a nozzle or aperture in the cartridge.
11. The e-liquid cartridge of Concept 1 in which the cartridge includes an integral micro-pump.
12. The e-liquid cartridge of Concept 11 in which the cartridge includes an overflow channel that enables excess e-liquid that is pumped up from the cartridge but is not stored in the PV to be captured and returned to the cartridge.
13. The e-liquid cartridge of Concept 1, being one of several cartridges inserted in or attached to the case, in which the case is operable to select a specific desired cartridge or to mix e-liquid from several cartridges.
14. The e-liquid cartridge of Concept 1 including several compartments, each with a different e-liquid.
15. The e-liquid cartridge of Concept 1 which includes an electronic identifier, such as an RFID chip.
16. The e-liquid cartridge of Concept 1 in which the cartridge includes physical features on its surface, such as raised or lowered portions, that physically engage with complimentary features in the wall of the case aperture into which the cartridge is inserted.
17. The e-liquid cartridge of Concept 16 in which the physical features form the shape of a word or logo, such as a trademarked word or logo
18. The e-liquid cartridge of Concept 1 that is adapted to be removed from the storage and carrying case and replaced with a new e-liquid cartridge in normal use by an end-user.
19. The e-liquid cartridge of 18 with a flavour or nicotine strength selected from a range of different available flavours or nicotine strengths.
20. The e-liquid cartridge of Concept 1 adapted so that the level of or quantity of e-liquid in the cartridge or used by the cartridge can be measured or inferred so that a timely signal indicating that a replacement cartridge is needed can be generated.
21. The e-liquid cartridge of Concept 20 in which the signal is sent to a connected smartphone which in turn connects to an e-fulfilment platform.
22. The e-liquid cartridge of preceding Concept 20 that interacts with an ultrasonic range that measures how much e-liquid is left in the cartridge or whether a replacement is needed.
23. The e-liquid cartridge of preceding Concept 20 that interacts with a tilt sensor to detect the angle of the cartridge and whether the e-liquid in the cartridge closes an electrical circuit between different electrical contacts at different levels within the cartridge.
24. The e-liquid cartridge of preceding Concept 20 that interacts with a weight sensor that weighs the cartridge.
25. The e-liquid cartridge of preceding Concept 20 that interacts with a capacitive sensor that detects the level of e-liquid in the cartridge.
26. The e-liquid cartridge of preceding Concept 20 that interacts with an air pressure sensor at the top of a flexible tube whose bottom is held just above the bottom of the cartridge.
27. The e-liquid cartridge of Concept 1 in which the e-liquid includes nicotine and the PV is not a medicinal device but instead a device that in normal use replaces cigarettes, with the e-liquid being vapourised in the PV and the vapour inhaled to replicate or replace the experience of smoking a cigarette.
28. The e-liquid cartridge of Concept 28 which contains nicotine equivalent to approximately one hundred cigarettes.
29. Method for sending a signal relating to the status of a user-replaceable e-liquid cartridge used in a portable, personal storage and carrying case adapted specifically for a refillable e-cigarette PV and that re-fills and re-charges the PV, the method including the steps (a) transferring e-liquid from a user-replaceable e-liquid cartridge to the PV and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
30. The method of Concept 29 including the steps of (a) detecting the level of or quantity of e-liquid in a user-replaceable e-liquid cartridge in the case and (b) automatically sending a signal requesting a replacement for the user-replaceable e-liquid cartridge to an e-fulfilment platform, either directly or via a connected smartphone.
End of Appendix 1
| Number | Date | Country | Kind |
|---|---|---|---|
| 1403566.1 | Feb 2014 | GB | national |
| 1408173.1 | May 2014 | GB | national |
| 1413018.1 | Jul 2014 | GB | national |
| 1413021.5 | Jul 2014 | GB | national |
This application is a continuation of U.S. application Ser. No. 15/696,334, filed on Sep. 6, 2017, which is a continuation of U.S. application Ser. No. 15/069,083, filed Mar. 14, 2016, which is a continuation of U.S. application Ser. No. 14/633,863, filed Feb. 27, 2015, which is based on and claims priority to UK Application No. 1403566.1, filed Feb. 28, 2014; UK Application No. 1408173.1, filed May 8, 2014; UK Application No. 1413018.1, filed Jul. 23, 2014; UK Application No. 1413021.5, filed Jul. 23, 2014; U.S. Provisional Application No. 62/045,651, filed Sep. 4, 2014; and U.S. Provisional Application No. 62/045,666, filed Sep. 4, 2014, the entire contents of each of which being fully incorporated herein by reference.
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