The subject matter described herein relates to vaporizer devices including a heating system for heating a vaporizable material insert.
Vaporizer devices, which can also be referred to as vaporizers, electronic vaporizer devices, or e-vaporizer devices, can be used for delivery of an aerosol (for example, a vapor-phase and/or condensed-phase material suspended in a stationary or moving mass of air or some other gas carrier) containing one or more active ingredients by inhalation of the aerosol by a user of the vaporizing device. For example, electronic nicotine delivery systems (ENDS) include a class of vaporizer devices that are battery powered and that can be used to simulate the experience of smoking, but without burning of tobacco or other substances. Vaporizers are gaining increasing popularity both for prescriptive medical use, in delivering medicaments, and for consumption of tobacco, nicotine, and other plant-based materials. Vaporizer devices can be portable, self-contained, and/or convenient for use.
In use of a vaporizer device, the user inhales an aerosol, colloquially referred to as “vapor,” which can be generated by a heating element that vaporizes (e.g., causes a liquid or solid to at least partially transition to the gas phase) a vaporizable material, which can be liquid, a solution, a solid, a paste, a wax, and/or any other form compatible for use with a specific vaporizer device. The vaporizable material used with a vaporizer can be provided within a cartridge for example, a separable part of the vaporizer device that contains vaporizable material) that includes an outlet (for example, a mouthpiece) for inhalation of the aerosol by a user.
To receive the inhalable aerosol generated by a vaporizer device, a user may, in certain examples, activate the vaporizer device by taking a puff, by pressing a button, and/or by some other approach. A puff as used herein can refer to inhalation by the user in a manner that causes a volume of air to be drawn into the vaporizer device such that the inhalable aerosol is generated by a combination of the vaporized vaporizable material with the volume of air.
An approach by which a vaporizer device generates an inhalable aerosol from a vaporizable material involves heating the vaporizable material in a vaporization chamber (e.g., a heater chamber) to cause the vaporizable material to be converted to the gas (or vapor) phase. A vaporization chamber can refer to an area or volume in the vaporizer device within which a heat source (for example, a conductive, convective, and/or radiative heat source) causes heating of a vaporizable material to produce a mixture of air and vaporized material to form a vapor for inhalation of the vaporizable material by a user of the vaporization device.
Vaporizer devices can be controlled by one or more controllers, electronic circuits (for example, sensors, heating elements), and/or the like on the vaporizer. Vaporizer devices can also wirelessly communicate with an external controller for example, a computing device such as a smartphone).
In some embodiments, vaporizer cartridges configured to heat solid vaporizable material (e.g. plant material such as tobacco leaves and/or parts of tobacco leaves) can require higher temperatures for inner tobacco regions to reach a minimum required temperature for vaporization. As a result, the solid vaporizable material can become burned at these high peak temperatures and produce toxic byproducts (e.g., chemical elements or chemical compounds).
Vaporizer devices can be categorized into two classes, those that heat through conduction and those that heat through convection. For example, conduction-based vaporizer devices may be configured to vaporize liquid vaporizable material using a heating element contacting the liquid vaporizable material. As such, the liquid vaporizable material may contaminate the heating element, which can compromise performance of the vaporizer device. Some vaporizers may incorporate the heating element into the disposable part of the vaporizer device (e.g., the cartridge), such that the heating element may be replaced with each new cartridge and thereby limit, but not eliminate, heating element contamination. However, this can increase manufacturing labor and costs associated with the disposable. Furthermore, uniform heating of the vaporizable material in current conduction-based vaporizers may be difficult to achieve due to the low thermal conductivity of certain vaporizable materials (e.g., plant materials, such as tobacco).
Some issues with current vaporizer devices include the inability to efficiently and effectively heat the vaporizable material without wasting a significant amount of energy. For example, some vaporizer devices include a heater body wrapped around an external surface of a tobacco material and placed directly in an airstream. Such a configuration may cause one or more heater surfaces to be exposed to the airstream, thereby losing at least a portion of thermal energy produced by the heater that could have been used to heat the tobacco material. As such, energy may be wasted as the generated heat is not effectively utilized.
Vaporizer devices configured to bury the heater inside of the tobacco material may include airflow passing through the tobacco material thereby prohibiting tight tobacco compaction around the heater, thus diminishing heat transfer from the heater to the tobacco material. Furthermore, vaporizer devices with the heater buried inside the tobacco may also experience cleaning and hygiene issues. For example, as the heater pierces the tobacco, residue may be left on the heater after use, thereby requiring the user to clean the heater before continued use.
Aspects of the current subject matter relate to vaporizer devices including various embodiment of a heating system for heating a vaporizable material insert and generating an inhalable aerosol. In one aspect, a heating system of a vaporizer device is described for generating an inhalable aerosol. The heating system can include a heating element positioned along a vaporizable material insert receptacle configured to receive a vaporizable material insert. The heating element can be configured to heat the vaporizable material insert for generating the inhalable aerosol. The heating system can include a compression element positioned along a part of the vaporizable material insert receptacle for pressing the vaporizable material insert against the heating element. The heating system can further include an airflow pathway extending along the vaporizable material insert receptacle for allowing the inhalable aerosol to flow through an outlet of the vaporizer device.
In some variations one or more of the following features can optionally be included in any feasible combination. In some embodiments, the vaporizable material insert receptacle can include two channels extending along opposing sides of the heating element, and each of the two channels can be configured to receive a vaporizable material insert. The heating element can include a first side configured to contact and heat a first vaporizable material insert, and the heating element can include a second side configured to contact and heat a second vaporizable material insert. The compression element can include a plurality of extensions configured to apply pressure against the vaporizable material insert. The airflow pathway can include a part that extends between at least two of the plurality of extensions. The heating system can further include a spring that applies a spring force against the compression element to assist with pressing the vaporizable material insert against the heating element. The heating system can further include an insulation layer positioned adjacent a first side of the heating element, and the first side of the heating element can be opposed to a second side of the heating element defining a part of the vaporizable material insert receptacle. The heating element can include a helical configuration that is configured to receive a vaporizable material insert having a cylindrical shape.
In some embodiments, the heating system can further include a compression adjusting feature that can allow an amount of compression force provided by the compression element to be adjusted. The compression element can include a pair of jaws that are moveable to compress and heat the vaporizable material positioned between the pair of jaws. The heating element can include a flexible material configured to conform to the vaporizable material insert when the vaporizable material insert is pressed against the heating element. The compression element can extend from a lid that transitions between an open and closed configuration, and the compression element can be configured to press the vaporizable material insert against the flexible material of the heating element when the lid is in the closed configuration. The flexible material can be coupled to a movable feature that, as a result of the lid forming the closed configuration, moves to cause an increase in surface area contact between the heating element and the vaporizable material insert. The vaporizable material insert can include an insert housing that contains a vaporizable material.
In another aspect, a vaporizer system for generating an inhalable aerosol is described. For example, the vaporizer system can include a vaporizable material insert including a vaporizable material and a vaporizer device. The vaporizer device can include a heating system that includes a heating element positioned along a vaporizable material insert receptacle configured to receive the vaporizable material insert. The heating element can be configured to heat the vaporizable material insert for generating the inhalable aerosol. The heating system can further include a compression element positioned along a part of the vaporizable material insert receptacle for pressing the vaporizable material insert against the heating element. The heating element can also include an airflow pathway extending along the vaporizable material insert receptacle for allowing the inhalable aerosol to flow through an outlet of the vaporizer device.
In some variations one or more of the following features can optionally be included in any feasible combination. In some embodiments, the vaporizable material insert receptacle can include two channels extending along opposing sides of the heating element, and each of the two channels can be configured to receive a vaporizable material insert. The heating element can include a first side configured to contact and heat a first vaporizable material insert, and the heating element can include a second side configured to contact and heat a second vaporizable material insert. The compression element can include a plurality of extensions configured to apply pressure against the vaporizable material insert. In some embodiments, a part of the airflow pathway can extend between at least two of the plurality of extensions. The heating system can further include a spring that applies a spring force against the compression element to assist with pressing the vaporizable material insert against the heating element. The heating system can further include an insulation layer positioned adjacent a first side of the heating element, and the first side of the heating element can be opposed to a second side of the heating element defining a part of the vaporizable material insert receptacle. The heating element can include a helical configuration that is configured to receive a vaporizable material insert having a cylindrical shape.
In some embodiments, the heating system can further include a compression adjusting feature that allows an amount of compression force provided by the compression element to be adjusted. The compression element can include a pair of jaws that are moveable to compress and heat the vaporizable material positioned between the pair of jaws. The heating element can include a flexible material configured to conform to the vaporizable material insert when the vaporizable material insert is pressed against the heating element. The compression element can extend from a lid that transitions between an open and closed configuration. The compression element can be configured to press the vaporizable material insert against the flexible material of the heating element when the lid is in the closed configuration. The flexible material can be coupled to a movable feature that, as a result of the lid forming the closed configuration, moves to cause an increase in surface area contact between the heating element and the vaporizable material insert. The vaporizable material insert can include an insert housing that contains a vaporizable material. The vaporizable material of the vaporizable material insert can include a liquid vaporizable material. The vaporizable material insert can include at least one of a tobacco material and a non-liquid vaporizable material. The vaporizable material insert can include a filter portion. The vaporizable material can include a plurality of perforations. The vaporizable material insert can include an integrated heating element.
In another interrelated aspect of the current subject matter, a method for generating an inhalable aerosol for inhalation by a user is described. The method can include receiving a vaporizable material insert including a vaporizable material into a vaporizable material insert receptacle of a vaporizer device. The method can further include compressing the vaporizable material insert against a heating element positioned along the vaporizable material insert receptacle. In addition, the method can include activating the heating element to heat the vaporizable material of the vaporizable material insert to form the inhalable aerosol.
In some variations one or more of the following features can optionally be included in any feasible combination. For example, the compressing can be performed by a compression element of the vaporizer device. The method can further include adjusting a compression force provided by the compression element. The vaporizer device can include a spring that applies the compression force against the compression element. The vaporizer device can include a compression adjusting feature that adjusts the compression force. The compression element can include a pair of movable jaws. The compression element can include a plurality of extensions configured to apply pressure against the vaporizable material insert. In some embodiments, a part of an airflow pathway extends between at least two of the plurality of extensions. In some embodiments, the heating element can include a helical configuration that is configured to receive a vaporizable material insert having a cylindrical shape. The heating element can include a flexible material that conforms to the vaporizable material insert. The vaporizer device can further include an insulation layer positioned adjacent a first side of the heating element, the first side of the heating element can be opposed to a second side of the heating element defining a part of the vaporizable material insert receptacle. The method can further include forming at least one perforation along an insert housing of the vaporizable material insert.
The details of one or more variations of the subject matter described herein are set forth in the accompanying drawings and the description below. Other features and advantages of the subject matter described herein will be apparent from the description and drawings, and from the claims. The claims that follow this disclosure are intended to define the scope of the protected subject matter.
The accompanying drawings, which are incorporated in and constitute a part of this specification, show certain aspects of the subject matter disclosed herein and, together with the description, help explain some of the principles associated with the disclosed implementations. In the drawings:
When practical, similar reference numbers denote similar structures, features, or elements.
Implementations of the current subject matter include methods, apparatuses, articles of manufacture, and systems relating to vaporization of one or more materials for inhalation by a user. For example, various embodiments of a heating system of a vaporizable device are described herein that provide a number of benefits, including increasing contact between a heating element of the heating system and a vaporizable material containing vaporizable material to ensure efficient and effective thermal transfer between the heating element and vaporizable material. For example, in some embodiments the heating system may be configured to counteract expansion of the heating element (e.g., apply at least an equal and opposite direction of force against the heating element) as the temperature increases, thereby ensuring the heating element maintains intimate contact with the vaporizable material insert during heating. Such maintained intimate contact between the heating element and the vaporizable material insert may reduce thermal loss, such as to a surrounding housing of the heating system, as well as increase heating efficiency (e.g., per amount of power consumption).
Various embodiments of a vaporizable material insert including vaporizable material for use with the various heating systems are also described. In some embodiments, the vaporizable material insert can be configured such that the vaporizable material can be placed in direct contact with and/or in close proximity to a heating element of the heating system to allow for efficient and effective heat transfer from the heating element to the vaporizable material. As such, the heating systems and vaporizable material inserts described herein can provide more efficient heating of vaporizable material and formation of inhalable aerosol compared to some currently available vaporizer devices and/or vaporizable material inserts. Other benefits are described herein and are within the scope of this disclosure.
The term “vaporizer device” as used in the following description and claims refers to any of a self-contained apparatus, an apparatus that includes two or more separable parts (for example, a vaporizer body that includes a battery and other hardware, and a cartridge or insert that includes a vaporizable material), and/or the like. A “vaporizer system,” as used herein, can include one or more components, such as a vaporizer device. Examples of vaporizer devices consistent with implementations of the current subject matter include electronic vaporizers, electronic nicotine delivery systems (ENDS), and/or the like. In general, such vaporizer devices are hand-held devices that heat (such as by convection, conduction, radiation, and/or some combination thereof) a vaporizable material to provide an inhalable dose of the material.
The vaporizable material used with a vaporizer may optionally be provided within a vaporizable material insert or cartridge (e.g., a part of the vaporizer that contains the vaporizable material) which can be refillable when empty, or disposable such that a new cartridge containing additional vaporizable material of a same or different type can be used. A vaporizer device can be a cartridge-using vaporizer device, a cartridge-less vaporizer device, or a multi-use vaporizer device capable of use with or without a cartridge. Some cartridge embodiments can include a vaporizable material insert. For example, embodiments of vaporizable material inserts can be at least partly made of a non-liquid vaporizable material. As such, some embodiments of the vaporizer device can be configured to receive a vaporizable material insert that is at least partly made of one or more vaporizable materials for heating and forming an inhalable aerosol, as will be described in greater detail below. In some embodiments, a vaporizer device can include a heating chamber or compartment (e.g., a vaporizable material insert receptacle) configured to receive a vaporizable material insert directly therein and heat the vaporizable material insert for forming an inhalable aerosol.
In some implementations, a vaporizer device can be configured for use with a liquid vaporizable material (for example, a carrier solution in which an active and/or inactive ingredient(s) are suspended or held in solution, or a liquid form of the vaporizable material itself) and/or a non-liquid vaporizable material (e.g., a paste, a wax, a gel, a solid, a plant material, and/or the like). A non-liquid vaporizable material can include a plant material that emits some part of the plant material as the vaporizable material (for example, some part of the plant material remains as waste after the material is vaporized for inhalation by a user) or optionally can be a solid form of the vaporizable material itself, such that all of the solid material can eventually be vaporized for inhalation. A liquid vaporizable material can likewise be capable of being completely vaporized, or can include some portion of the liquid material that remains after all of the material suitable for inhalation has been vaporized.
After conversion of the vaporizable material 102 to the gas phase, at least some of the vaporizable material 102 in the gas phase can condense to form particulate matter in at least a partial local equilibrium with the gas phase as part of an aerosol, which can form some or all of an inhalable dose provided by the vaporizer device 100 during a user's puff or draw on the vaporizer device 100. It should be appreciated that the interplay between gas and condensed phases in an aerosol generated by a vaporizer device 100 can be complex and dynamic, due to factors such as ambient temperature, relative humidity, chemistry, flow conditions in airflow paths (both inside the vaporizer and in the airways of a human or other animal), and/or mixing of the vaporizable material 102 in the gas phase or in the aerosol phase with other air streams, which can affect one or more physical parameters of an aerosol. In some vaporizer devices, and particularly for vaporizer devices configured for delivery of volatile vaporizable materials, the inhalable dose can exist predominantly in the gas phase (for example, formation of condensed phase particles can be very limited).
The heating element 141 can include one or more of a conductive heater, a radiative heater, and/or a convective heater. One type of heating element is a resistive heating element, which can include a material (such as a metal or alloy, for example a nickel-chromium alloy, or a non-metallic resistor) configured to dissipate electrical power in the form of heat when electrical current is passed through one or more resistive segments of the heating element. In some implementations of the current subject matter, the heating element 141 (e.g., a resistive heating element and/or the like) is configured to generate heat for vaporizing the vaporizable material 102 to generate an inhalable dose of the vaporizable material 102. As noted, the vaporizable material 102 may be a liquid or non-liquid (or combination of both liquid and non-liquid). For example, the heating element 141 may be wrapped around, pressed into thermal contact with, or otherwise arranged to deliver heat to the vaporizable material 102 to be vaporized for subsequent inhalation by a user in a gas and/or a condensed (for example, aerosol particles or droplets) phase.
In some embodiments, the vaporizable material 102 may be a non-liquid vaporizable material including, for example, a solid-phase material (such as a gel, a wax, or the like) or plant material (e.g., tobacco leaves and/or parts of tobacco leaves). Where the vaporizable material 102 is a non-liquid vaporizable material, the heating element 141 can be part of, or otherwise incorporated into or in thermal contact with, the walls of a heating chamber or compartment (e.g., vaporizable material insert receptacle 118) into which the vaporizable material insert 120 is placed. Alternatively, the heating element 141 can be used to heat air passing through or past the vaporizable material insert 120, to cause convective heating of the vaporizable material 102 of the vaporizable material insert 120. In still other examples, the heating element 141 can be disposed in intimate contact with the vaporizable material 102 such that direct conductive heating of the vaporizable material 102 of the vaporizable material insert 120 occurs from within a mass of the vaporizable material 102, as opposed to only by conduction inward from walls of the heating chamber (e.g., an oven and/or the like). In some embodiments, the heating element 141 can be a part of the vaporizer body 110 (e.g., part of the durable or reusable part of the vaporizer 100), as shown in
In some embodiments, the heating element 141 can be a part of the vaporizable material insert 120 (e.g., part of the disposable part of the vaporizer 100). For example, the vaporizable material insert 120 can include one or more vaporizable material contacts that mate with one or more vaporizer body contacts (e.g., positioned along the vaporizable material insert receptacle 118) for providing an electrical conductive pathway between the power source 112 of the vaporizer body 110 and the heating element 141 of the vaporizer material insert 120.
The heating element 141 can be activated in association with a user puffing (e.g., drawing, inhaling, etc.) on an end and/or mouthpiece of the vaporizer device 100 to cause air to flow from an air inlet, along an airflow path for assisting with forming an inhalable aerosol that can be delivered out through an air outlet in the mouthpiece. Incoming air moving along the airflow path moves over or through the heating element 141 and/or vaporizable material 102 where vaporizable material 102 in the gas phase is entrained into the air. The heating element 141 can be activated via the controller 104, which can optionally be a part of the vaporizer body 110 as discussed herein, causing current to pass from the power source 112 through a circuit including the heating element 141, which can be part of the vaporizer body 110. As noted herein, the entrained vaporizable material 102 in the gas phase can condense as it passes through the remainder of the airflow path such that an inhalable dose of the vaporizable material 102 in an aerosol form can be delivered from the air outlet (for example, the mouthpiece) for inhalation by a user.
Activation of the heating element 141 can be caused by automatic detection of a puff based on one or more signals generated by one or more sensor(s) 113. The sensor 113 and the signals generated by the sensor 113 can include one or more of: a pressure sensor or sensors disposed to detect pressure along the airflow path relative to ambient pressure (or optionally to measure changes in absolute pressure), a motion sensor or sensors (for example, an accelerometer) of the vaporizer device 100, a flow sensor or sensors of the vaporizer device 100, a capacitive lip sensor of the vaporizer device 100, detection of interaction of a user with the vaporizer device 100 via one or more input devices 116 (for example, buttons or other tactile control devices of the vaporizer device 100), receipt of signals from a computing device in communication with the vaporizer device 100, and/or via other approaches for determining that a puff is occurring or imminent.
As discussed herein, the vaporizer device 100 consistent with implementations of the current subject matter can be configured to connect (such as, for example, wirelessly or via a wired connection) to a computing device (or optionally two or more devices) in communication with the vaporizer device 100. To this end, the controller 104 can include communication hardware 105. The controller 104 can also include a memory 108. The communication hardware 105 can include firmware and/or can be controlled by software for executing one or more cryptographic protocols for the communication.
A computing device can be a component of a vaporizer system that also includes the vaporizer device 100, and can include its own hardware for communication, which can establish a wireless communication channel with the communication hardware 105 of the vaporizer device 100. For example, a computing device used as part of a vaporizer system can include a general-purpose computing device (such as a smartphone, a tablet, a personal computer, some other portable device such as a smartwatch, or the like) that executes software to produce a user interface for enabling a user to interact with the vaporizer device 100. In other implementations of the current subject matter, such a device used as part of a vaporizer system can be a dedicated piece of hardware such as a remote control or other wireless or wired device having one or more physical or soft (e.g., configurable on a screen or other display device and selectable via user interaction with a touch-sensitive screen or some other input device like a mouse, pointer, trackball, cursor buttons, or the like) interface controls. The vaporizer device 100 can also include one or more outputs 117 or devices for providing information to the user. For example, the outputs 117 can include one or more light emitting diodes (LEDs) configured to provide feedback to a user based on a status and/or mode of operation of the vaporizer device 100.
In the example in which a computing device provides signals related to activation of the heating element 141, or in other examples of coupling of a computing device with the vaporizer device 100 for implementation of various control or other functions, the computing device executes one or more computer instruction sets to provide a user interface and underlying data handling. In one example, detection by the computing device of user interaction with one or more user interface elements can cause the computing device to signal the vaporizer device 100 to activate the heating element to reach an operating temperature for creation of an inhalable dose of vapor/aerosol. Other functions of the vaporizer device 100 can be controlled by interaction of a user with a user interface on a computing device in communication with the vaporizer device 100.
The temperature of the heating element 141 of the vaporizer device 100 can depend on a number of factors, including an amount of electrical power delivered to the heating element 141 and/or a duty cycle at which the electrical power is delivered, conductive heat transfer to other parts of the vaporizer device 100 and/or to the environment, latent heat losses due to vaporization of the vaporizable material 102, and convective heat losses due to airflow (e.g., air moving across the heating element 141 when a user inhales on the vaporizer device 100). As noted herein, to reliably activate the heating element 141 or heat the heating element 141 to a desired temperature, the vaporizer device 100 may, in some implementations of the current subject matter, make use of signals from the sensor 113 (for example, a pressure sensor) to determine when a user is inhaling. The sensor 113 can be positioned in the airflow path and/or can be connected (for example, by a passageway or other path) to an airflow path containing an inlet for air to enter the vaporizer device 100 and an outlet via which the user inhales the resulting vapor and/or aerosol such that the sensor 113 experiences changes (for example, pressure changes) concurrently with air passing through the vaporizer device 100 from the air inlet to the air outlet. In some implementations of the current subject matter, the heating element 141 can be activated in association with a user's puff, for example by automatic detection of the puff, or by the sensor 113 detecting a change (such as a pressure change) in the airflow path.
The sensor 113 can be positioned on or coupled to (e.g., electrically or electronically connected, either physically or via a wireless connection) the controller 104 (for example, a printed circuit board assembly or other type of circuit board). To take measurements accurately and maintain durability of the vaporizer device 100, it can be beneficial to provide a seal resilient enough to separate an airflow path from other parts of the vaporizer device 100. The seal, which can be a gasket, can be configured to at least partially surround the sensor 113 such that connections of the sensor 113 to the internal circuitry of the vaporizer device 100 are separated from a part of the sensor 113 exposed to the airflow path. Such arrangements of the seal in the vaporizer device 100 can be helpful in mitigating against potentially disruptive impacts on vaporizer components resulting from interactions with environmental factors such as water in the vapor or liquid phases and/or to reduce the escape of air from the designated airflow path in the vaporizer device 100. Unwanted air, liquid or other fluid passing and/or contacting circuitry of the vaporizer device 100 can cause various unwanted effects, such as altered pressure readings, and/or can result in the buildup of unwanted material, such as moisture, errant portions of the vaporizable material 102, etc., in parts of the vaporizer device 100 where they can result in poor pressure signal, degradation of the sensor 113 or other components, and/or a shorter life of the vaporizer device 100. Leaks in the seal can also result in a user inhaling air that has passed over parts of the vaporizer device 100 containing, or constructed of, materials that may not be desirable to be inhaled.
In vaporizers in which the power source 112 is part of a vaporizer body 110 and the heating element 141 is disposed in the vaporizable material insert 120 configured to couple with the vaporizer body 110, the vaporizable material insert 120 and vaporizer 100 may include electrical connection features (e.g., electrical contacts) for completing a circuit that includes the controller 104 (e.g., a printed circuit board, a microcontroller, or the like), the power source 112, and the heating element 141. The circuit completed by these electrical connections can allow delivery of electrical current to the heating element 141 (e.g., resistive heating element) and may further be used for additional functions, such as measuring a resistance of the resistive heating element for use in determining and/or controlling a temperature of the resistive heating element based on a thermal coefficient of resistivity of the resistive heating element.
In some embodiments, the vaporizable material insert receptacle 118 can include all or part of the heating element 141 (e.g., a heating coil, resistive heating element, etc.) that is configured to heat the vaporizable material insert 120 received in the vaporizable material insert receptacle 118, such as for forming the inhalable aerosol. For example, the vaporizable material insert receptacle 118 can include various embodiments of the heating element 141 that are configured to receive and/or be placed in contact with the vaporizable material insert 120. Various embodiments of the heating element 141, the vaporizable material insert receptacle 118, and the vaporizable material insert 120 are described herein for integration within and/or use with a variety of vaporizer bodies 110 for forming inhalable aerosol.
In some implementations, the vaporizable material insert 120 can be configured for insertion in the vaporizable material insert receptacle 118, such as for forming contact between an outer surface of the vaporizable material insert 120 and one or more inner walls of the vaporizable material insert receptacle 118. For example, the vaporizable material insert 120 can have the same or similar shape as the vaporizable material insert receptacle 118. In some embodiments, the vaporizable material insert 120 can include a square or rectangular shape. In some embodiments, the vaporizable material insert 120 can include a circular cross-section and/or cylindrical shape. In some embodiments, the vaporizable material insert 120 can have a non-circular cross section transverse to the axis along which the vaporizable material insert 120 is inserted into the vaporizable material insert receptacle 118. For example, the non-circular cross section can be approximately rectangular, approximately elliptical (e.g., have an approximately oval shape), non-rectangular but with two sets of parallel or approximately parallel opposing sides (e.g., having a parallelogram-like shape), or other shapes having rotational symmetry of at least order two. In this context, approximate shape indicates that a basic likeness to the described shape is apparent, but that sides of the shape in question need not be completely linear and vertices need not be completely sharp. Rounding of both or either of the edges or the vertices of the cross-sectional shape is contemplated in the description of any non-circular cross section referred to herein.
In some implementations, at least one of the one or more inner walls forming the vaporizable material insert receptacle 118 can include the heating element 141 and/or include thermally conductive material. For example, vaporizable material insert 120 configurations in which the vaporizable material 120 forms a sliding fit and/or forms close contact with the vaporizable material insert receptacle 118 can allow for efficient heat transfer between the heating element 141 and the vaporizable material insert 120, thereby causing efficient and effective heating of the vaporizable material 102 of the vaporizable material insert 120.
Furthermore, the vaporizable material insert 120 can include compressed and/or high density configurations of non-liquid vaporizable material 102, which can further contribute to efficient and effective heating and vaporizing of the vaporizable material 102. For example, vaporizable material 102 in a compressed and/or high-density configuration can include a minimal amount of air or pockets of air in the vaporizable material 102 thereby increasing the efficiency and effectiveness of transferring heat along the vaporizable material 102. Such a configuration can allow for reduced power consumption at least because less heating power is needed to effectively heat and vaporize the vaporizable material 102. Additionally, lower heating temperatures can be used to heat the vaporizable material 102 at least because of the improved heating efficiency of the vaporizable material 102, which can also reduce power consumption and formation of hazardous byproducts resulting from heating the vaporizable material at higher temperatures. Various embodiments of the vaporizable material insert 120 are described herein that include the vaporizable material formed in compressed and/or high-density configurations for achieving at least some of the benefits described above.
In some embodiments, the vaporizer device can include a heating system configured to receive and heat various embodiments of the vaporizable material insert for generating inhalable aerosol. For example, the heating system can include an embodiment of the heating element 141 positioned along the vaporizable material insert receptacle 118 (e.g., extending along a center and/or along a side wall of the vaporizable material insert receptacle 118). The heating system can also include at least one compression element (e.g., compression plate) and an airflow pathway. As will be described in greater detail below, the heating system can be configured to receive the vaporizable material insert 120, compress the vaporizable material insert 120 onto at least one heating element 141 (e.g., using at least one compression element), and distribute an inhalable aerosol into one or more airflow pathways for inhalation by a user.
Various embodiments of such heating systems of vaporizable devices 100 are described herein that provide a number of benefits, including evenly distributing heat through the vaporizable material 102 of the vaporizable material insert 120. This can result in improved inhalable aerosol generation, less energy and/or lower average temperatures required to form inhalable aerosol, and efficient and effective consumption of the vaporizable material 102.
In some embodiments, the heating system of the vaporizer device 100 is configured to heat a non-liquid combustible material, such as tobacco. For example, the vaporizer body 110 can include one or more compartments or vaporizable material insert receptacles 118 that each accept at least one vaporizable material insert 120 configured to be heated by one or more heating elements 141 thereby generating an inhalable aerosol.
In some embodiments, the heating system may further include at least one compression feature, such as a compression plate, that is configured to compress the vaporizable material insert 120 against the heating element 141. One or more airflow pathways can extend through each vaporizable material insert receptacle 118, including around and/or through the vaporizable material insert 120 positioned within a respective vaporizable material insert receptacle 118.
In some embodiments, the vaporizable material insert 120 may include a non-vapor permeable barrier (such as tobacco paper) configured to contain vaporizable material 102 and protect the heating element 141 from vapor deposits, therefore cleaning of the heating element 141 after use may not be required. Various embodiments of a heating system and vaporizable material inserts 120 are described in greater detail below.
In some embodiments, the heating element 141 can couple to a power source 112 at a first end of the vaporizable material insert receptacle 118 and extend along a length of a center of the vaporizable material insert receptacle 118, as shown in
In some embodiments, the first and second channels 235a and 235b can each be configured to accept a vaporizable material insert 120 for heating. After use, the first and second channels 235a and 235b can each be configured to allow any remaining debris or parts of the vaporizable material inserts 120 to be removed. For example, the vaporizable material insert receptacle 118 can be configured to include an opening along at least one end of the vaporizable material insert receptacle 118 to allow vaporizable material inserts 120 to be inserted therein, such as into one or both of the first and second channels 235a and 235b. For example, after the vaporizable material inserts 120 have been inserted into the first and second channels 235a and 235b of the vaporizable material insert receptacle 118, the heating element 141 can be activated to form aerosol for inhalation by a user.
The vaporizable material inserts 120 can include a variety of configurations and include one or more vaporizable materials 102. For example, the vaporizable material inserts 120 can include tobacco. Various other embodiments are within the scope of this disclosure. Furthermore, the vaporizable material inserts 120 can include similar or different shapes and/or sizes, as well as the same or different vaporizable material 102.
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For example, the compression plates 232 may compress the vaporizable material inserts 120 against the heating element 141 to improve thermal contact for achieving efficient and effective thermal energy transfer from the heating element 141 to the vaporizable material 102 of the vaporizable material inserts 120. The compression plates 232 may include one or more of a variety of features for moving the compression plates 232 towards the heating element 141, thus compressing the vaporizable material inserts 120 against the heating element 141. For example, each compression plate 232 can include a biasing feature that is configured to bias the respective compression plates towards an adjacent vaporizable material insert 120, as well as towards the heating element 141.
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In some embodiments, the insert housing 422 of the vaporizable material insert 120 can be made out of a tobacco material. The insert housing 422 can be included as part of the consumable that produces vapor that can be inhaled by a user. As such, the heating element 141 can contact and/or heat the insert housing 422 and vaporizable material 102 contained within the insert housing 422, which can result in a favorable heating of the vaporizable material 102 for achieving efficient and effective vapor formation. Such even heating can provide for effective repeated start-and-stop heating of the vaporizable material insert 120.
In some embodiments, the insert housing 422 can be made of a material that prevents passage of air through the insert housing 422 to thereby prevent air from effecting the quality of the vaporizable material 102 contained within the insert housing 422. In some embodiments, the insert housing 422 can include through holes or perforations 426 that allow air to pass through the vaporizable material insert 120. For example, the vaporizable material insert 120 may be completely sealed and at least one through hole can be formed along the insert housing 422 prior to or upon insertion of the vaporizable material insert 120 into the vaporizable material insert receptacle 118 of the vaporizer body 110. Providing a sealed vaporizable material insert can improve and maintain freshness and quality of the vaporizable material 102 within the vaporizable material insert 120.
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In some embodiments, the vaporizable material insert 120 can be pre-perforated with one or more perforations along the insert housing 422. In some embodiments, perforations 426 can be created along the vaporizable material insert 120 while inserted into the vaporizable material insert receptacle 118 of the heating system 230. In some embodiments, perforations 426 can be formed along a bonding layer or seal of the insert housing 422 of the vaporizable material insert 120. The seal, or bonding layer, of the vaporizable material insert 120 can be configured to open responsive to heat being applied, thereby allowing inhalable aerosol to travel through the opened perforations 426. The opened perforations 426 may permit the inhalable aerosol to escape from the vaporizable material insert 120 and be picked up by the bypass airstream along the airflow pathway 234. Other materials and embodiments of the vaporizable material insert 120 and insert housing 422 are within the scope of this disclosure. For example, some embodiments of the perforated vaporizable material insert 120 can include a heating element 141 and/or thermally conductive material, such as within at least a part of the insert housing 422. In some embodiments, a mouthpiece can be incorporated with the vaporizable material insert 120 to prevent or minimize contact between the inhalable aerosol and the durable portion of the vaporizer body 110.
In some embodiments, the heating system 230 may include an embodiment of the heating element 141 including a flexible material that can conform to the vaporizable material insert 120. For example, the flexible material of the heating element 141 may be configured for efficiently and effectively heating a vaporizable material insert 120 having a cylindrical shape. In other embodiments, the heating element 141 may include a slight angle to the heater surface to increase contact between the heating element surface and the vaporizable material insert 120. Various heating element 141 shapes and configurations are within the scope of this disclosure.
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Various features can be included in the heating system 230 for causing the heating compression plate 770 to provide pressure against the vaporizable material insert 120 to thereby improve contact between the vaporizable material insert 120 and the heating compression plate 770. Such improved contact can achieve efficient and effective heating of the vaporizable material insert 120 for forming an inhalable aerosol. As shown in
In some embodiments, the heating element 141 can include a mesh material having thermally conductive and/or electrically resistive properties. As shown in
In some embodiments, one or more sides of the jaw 991 may include one or more heating element engagement features 995 that allow the heating element 141 to couple thereto. In some embodiments, the heating element 141 may be suspended and/or extending between two or more heating element engagement features 995, as shown in in
Various embodiments of such heating systems 230 may provide a number of benefits, including ease of manufacturing/assembly, cost effectiveness, maintaining position of the heating element 141, as well as causing the heating element 141 to be held taut and flat by way of engaging with a plurality of heating element features 995.
In some embodiments, constant compression of the vaporizable material insert 120 can be achieved by using a torsional spring loaded cap 1050 to twist the helical heating element 141 in the first direction. Similarly, the compression of the helical heating element 141 onto the vaporizable material insert 120 may be relieved by twisting the cap 1050 in a second direction. Twisting of the cap in the first direction can cause the helical heating element 141 to decrease in diameter around the inserted vaporizable material insert 120. The cap 1050 may be twisted in the second direction to a loading position, wherein the heating element 141 may have a larger diameter, such as for inserting the vaporizable material insert 120 within the helical heating element 141. Additionally, the cap 1050 may be twisted in the first direction to a vaporization position, wherein the heating element 141 may have a smaller diameter, such as to activate heating of the vaporizable material insert 120. Twisting the helical heating element into a smaller diameter may increase contact between the heating element 141 and the vaporizable material insert 120. In some embodiments, the rotatable cap can include a torsional spring-loaded mechanism that can assist with applying the torsional movement of the rotatable cap 1050.
Various embodiments of such heating systems 230 may provide a number of benefits, including improved thermal transfer between the heating element 141 and the vaporizable material insert 120 (e.g., when cap twisted in first direction), as well as provide ease of removal of remains of a consumed vaporizable material insert 120 (e.g., when cap twisted in second direction).
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During use, the heating element 141 can heat the vaporizable material insert 120 (e.g., along the outer wall of the vaporizable material insert 120) thus heating the filter portion 1122 and vaporizable material 102. As a result of the filter portion 1122 being heated, the material saturating the filter portion 1122 can be heated thereby forming a volume of inhalable aerosol. This volume of inhalable aerosol formed from the material saturating the filter portion 1122 can form and/or collect in the airflow pathway 234 of the filter portion 1122. This volume of inhalable aerosol formed and/or collected in the airflow pathway 234 of the filter portion 1122 can then be passed through the vaporizable material 102 contained in the vaporizable material portion 1124 and combine with inhalable aerosol formed from the heated vaporizable material 102 (e.g., tobacco material). The combined inhalable aerosols can then be inhaled by a user.
One benefit of the airflow pathway 234 along the filter portion 1122 can allow for less resistance against airflow along the vaporizable material insert 120. This can provide an improved experience for a user inhaling the combined inhalable aerosol (e.g., requires less suction), such as compared to a filter portion 1122 that does not include an airflow pathway 234 and, instead, requires airflow to travel through the wicking material or filter of the filter portion 1122 (e.g., requiring more suction). Other vaporizable material insert 120 configurations that include an airflow pathway through the filter portion 1122 are within the scope of this disclosure, including additional embodiments described herein.
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When a feature or element is herein referred to as being “on” another feature or element, it can be directly on the other feature or element or intervening features and/or elements may also be present. In contrast, when a feature or element is referred to as being “directly on” another feature or element, there are no intervening features or elements present. It will also be understood that, when a feature or element is referred to as being “connected”, “attached” or “coupled” to another feature or element, it can be directly connected, attached or coupled to the other feature or element or intervening features or elements may be present. In contrast, when a feature or element is referred to as being “directly connected”, “directly attached” or “directly coupled” to another feature or element, there are no intervening features or elements present.
Although described or shown with respect to one embodiment, the features and elements so described or shown can apply to other embodiments. It will also be appreciated by those of skill in the art that references to a structure or feature that is disposed “adjacent” another feature may have portions that overlap or underlie the adjacent feature.
Terminology used herein is for the purpose of describing particular embodiments and implementations only and is not intended to be limiting. For example, as used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items and may be abbreviated as “/”.
In the descriptions above and in the claims, phrases such as “at least one of” or “one or more of” may occur followed by a conjunctive list of elements or features. The term “and/or” may also occur in a list of two or more elements or features. Unless otherwise implicitly or explicitly contradicted by the context in which it used, such a phrase is intended to mean any of the listed elements or features individually or any of the recited elements or features in combination with any of the other recited elements or features. For example, the phrases “at least one of A and B;” “one or more of A and B;” and “A and/or B” are each intended to mean “A alone, B alone, or A and B together.” A similar interpretation is also intended for lists including three or more items. For example, the phrases “at least one of A, B, and C;” “one or more of A, B, and C;” and “A, B, and/or C” are each intended to mean “A alone, B alone, C alone, A and B together, A and C together, B and C together, or A and B and C together.” Use of the term “based on,” above and in the claims is intended to mean, “based at least in part on,” such that an unrecited feature or element is also permissible.
Spatially relative terms, such as “forward”, “rearward”, “under”, “below”, “lower”, “over”, “upper” and the like, may be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is inverted, elements described as “under” or “beneath” other elements or features would then be oriented “over” the other elements or features. Thus, the exemplary term “under” can encompass both an orientation of over and under. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Similarly, the terms “upwardly”, “downwardly”, “vertical”, “horizontal” and the like are used herein for the purpose of explanation only unless specifically indicated otherwise.
Although the terms “first” and “second” may be used herein to describe various features/elements (including steps), these features/elements should not be limited by these terms, unless the context indicates otherwise. These terms may be used to distinguish one feature/element from another feature/element. Thus, a first feature/element discussed below could be termed a second feature/element, and similarly, a second feature/element discussed below could be termed a first feature/element without departing from the teachings provided herein.
As used herein in the specification and claims, including as used in the examples and unless otherwise expressly specified, all numbers may be read as if prefaced by the word “about” or “approximately,” even if the term does not expressly appear. The phrase “about” or “approximately” may be used when describing magnitude and/or position to indicate that the value and/or position described is within a reasonable expected range of values and/or positions. For example, a numeric value may have a value that is +/−0.1% of the stated value (or range of values), +/−1% of the stated value (or range of values), +/−2% of the stated value (or range of values), +/−5% of the stated value (or range of values), +/−10% of the stated value (or range of values), etc. Any numerical values given herein should also be understood to include about or approximately that value, unless the context indicates otherwise. For example, if the value “10” is disclosed, then “about 10” is also disclosed. Any numerical range recited herein is intended to include all sub-ranges subsumed therein. It is also understood that when a value is disclosed that “less than or equal to” the value, “greater than or equal to the value” and possible ranges between values are also disclosed, as appropriately understood by the skilled artisan. For example, if the value “X” is disclosed the “less than or equal to X” as well as “greater than or equal to X” (e.g., where X is a numerical value) is also disclosed. It is also understood that the throughout the application, data is provided in a number of different formats, and that this data, represents endpoints and starting points, and ranges for any combination of the data points. For example, if a particular data point “10” and a particular data point “15” are disclosed, it is understood that greater than, greater than or equal to, less than, less than or equal to, and equal to 10 and 15 are considered disclosed as well as between 10 and 15. It is also understood that each unit between two particular units are also disclosed. For example, if 10 and 15 are disclosed, then 11, 12, 13, and 14 are also disclosed.
Although various illustrative embodiments are described above, any of a number of changes may be made to various embodiments without departing from the teachings herein. For example, the order in which various described method steps are performed may often be changed in alternative embodiments, and in other alternative embodiments one or more method steps may be skipped altogether. Optional features of various device and system embodiments may be included in some embodiments and not in others. Therefore, the foregoing description is provided primarily for exemplary purposes and should not be interpreted to limit the scope of the claims.
One or more aspects or features of the subject matter described herein can be realized in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) computer hardware, firmware, software, and/or combinations thereof. These various aspects or features can include implementation in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device. The programmable system or computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
These computer programs, which can also be referred to programs, software, software applications, applications, components, or code, include machine instructions for a programmable processor, and can be implemented in a high-level procedural language, an object-oriented programming language, a functional programming language, a logical programming language, and/or in assembly/machine language. As used herein, the term “machine-readable medium” refers to any computer program product, apparatus and/or device, such as for example magnetic discs, optical disks, memory, and Programmable Logic Devices (PLDs), used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term “machine-readable signal” refers to any signal used to provide machine instructions and/or data to a programmable processor. The machine-readable medium can store such machine instructions non-transitorily, such as for example as would a non-transient solid-state memory or a magnetic hard drive or any equivalent storage medium. The machine-readable medium can alternatively or additionally store such machine instructions in a transient manner, such as for example, as would a processor cache or other random access memory associated with one or more physical processor cores.
The examples and illustrations included herein show, by way of illustration and not of limitation, specific embodiments in which the subject matter may be practiced. As mentioned, other embodiments may be utilized and derived there from, such that structural and logical substitutions and changes may be made without departing from the scope of this disclosure. Such embodiments of the inventive subject matter may be referred to herein individually or collectively by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept, if more than one is, in fact, disclosed. Thus, although specific embodiments have been illustrated and described herein, any arrangement calculated to achieve the same purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the above description.
Number | Date | Country | Kind |
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20190100562 | Dec 2019 | GR | national |
The present application claims priority to Greek Patent Application No. 20190100562, filed on Dec. 17, 2019, entitled “Saddle Bags” and U.S. Provisional Patent Application Ser. No. 62/953,004, filed on Dec. 23, 2019, entitled “Heating System for Vaporizable Material Insert”, the entire contents of which are hereby expressly incorporated herein by reference.
Number | Date | Country | |
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62953004 | Dec 2019 | US |
Number | Date | Country | |
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Parent | PCT/US20/65685 | Dec 2020 | US |
Child | 17843742 | US |