Refillable lighters are utilized for lighting cigarettes, cigars, for starting campfires and the like. Common refillable lighters utilize butane or liquid lighter fluid, for example naphtha, for the fuel. A disadvantage with butane is that its performance degrades in extreme cold conditions. Most lighters that utilize liquid lighter fluid are not fluid tight and can leak the liquid lighter fluid and/or the lighter fluid evaporates in a relatively short period of time. Any improvements in the performance of lighters would be well received by the lighter-using public.
A fueled lighter for cigarettes, cigars, and the like having a main fuel containment housing body and a forward lighting end, with a sliding and rotatable cover having a closed seated and sealing position on the housing body covering the forward lighting end. The cover slides along an elongate axis of the lighter to displaced forward position from which it is rotatable 180° about the housing body to a rearward position, and is then slidable along the elongate axis of the lighter toward the housing body to a rearward seated position where the cover is removably secured to the rearward end of housing and the forward lighting end is exposed and ready for generation of a flame. In some examples, the flame generator assembly provides a wind shield with a flame outlet that is perpendicular to the major dimension and elongate axis of the lighter. When the flame generator is actuated, this orients the flame upwardly with the housing body extending generally horizontally or slightly tilted from the horizontal. The flame generator assembly includes a flame generator base with a fuel port positioned into the wind shield and an ignition means adjacent to the fuel port.
In some examples, the disclosure describes a lighter that includes a housing body extending from a forward flame generator to a rearward base along a longitudinal axis; and a cover having a forward enclosure and a pair of flaps extending rearwardly from the enclosure. The pair of flaps are slidingly engaged with at least a portion of the housing body. The enclosure is configured to cover the flame generator and seal against the housing body when the cover is in a closed position.
In some examples, the disclosure describes a lighter that includes a housing body extending from a forward flame generator to a rearward base along a longitudinal axis; and a cover having a forward enclosure and a pair of flaps extending rearwardly from the enclosure. Each pair of flaps defines a plurality of posts extending inwardly from the respective flaps towards the housing body. The housing body defines at least one of a slot or a detent configured to receive therein one or more of the plurality of posts. The pair of flaps are slidingly engaged with at least a portion of the housing body. The enclosure is configured to cover the flame generator and seal against the housing body when the cover is in a closed configuration.
An example lighter includes a housing body extending from a forward flame generator to a rearward base along a longitudinal axis; and a cover having a forward enclosure and a pair of flaps extending rearwardly from the enclosure. The pair of flaps are slidingly engaged with at least a portion of the housing body. The enclosure is configured to cover the flame generator and seal against the housing body when the cover is in a closed position. Commonly owned U.S. Patent Publication No. 2022/0082255, which is incorporated herein by reference in its entirety, discloses flame generation units, fuel ports, windscreen configurations, fuel reservoir, methods of use, and lighter components pertinent to this disclosure.
A feature and advantage of embodiments of the present disclosure is that the wind shield opens generally at a 90-degree angle from the greater dimension of the body. This allows the lighter to be held horizontally with the wind shield open in an upward direction.
A feature and advantage of embodiments of the present disclosure is that the wind shield may have a plurality of outwardly projecting tapered nozzle portions. Such outwardly projection nozzles are believed to be more effective than simple holes in providing wind protection while allowing sufficient air for combustion. As air enters the narrow opening and the opening expands on the inside of the nozzle, the air velocity is reduced more so that with simple aperture in a wall.
A feature and advantage of embodiments of the present disclosure is a flame generator base that has an O-ring groove for sealing connection to the cover.
A feature and advantage of embodiments of the present disclosure is that the height of the lighter in the use position is significantly less than conventional lighters. First, the lighter has a use position where greatest dimension of the lighter is positioned horizontally. The height then is the second greatest dimension of the lighter. Secondly, the cover rotates to the rearward end of the lighter for the operational position, not increasing the height of the lighter in the use position. This minimal height of the lighter is more conducive to use in camping for example, to extend the lighter into openings in campfire wood piles.
A feature and advantage of embodiments of the present disclosure is that the cover has a one-way rotation. The one-way rotation adds operational stability to the lighter such that during the rotational swing motion of the cover in the cover opening process, a stop is provided for the cover at the 180° position where the user can then slide the cover into the rearward seated position on the housing body.
A feature and advantage of embodiments of the present disclosure includes where the cover of the flame generation end of a lighter rotates to the opposite end of the housing body when the lighter is in an operating mode. In embodiments, the cover provides a stand on which the lighter may be placed. The cover does not impede the use of the lighter when in the operating mode.
Referring to
Referring to
Referring to
Referring to
Referring to
In embodiments, the lighter 20 is known as a cigarette or cigar lighter, the volumetric space occupied by the lighter is relatively small, from 2 cubic inches to 4 cubic inches. The weight of the lighter 20 is less than 4 ounces.
In embodiments, the ignition means may be electronic, and the fuel may be a gaseous fuel such as butane. See, for example U.S. Pat. Nos. 3,280,600; 7,654,821; 5,055,034; 3,353,376; 2,424,781; 4,128,393; 3,521,985; 2,867,753; and 3,311,789. The above references in all sections of this application are herein incorporated by references in their entirety for all purposes.
Housing body 722 extends from a rearward base 723 to a forward flame generator 744. Base 723 is configured to house and protect a flammable fluid and other internal components of lighter 720. Flame generator 744 is fluidly coupled to at least a portion of the flammable fluid containing internal components housed within base 723 and is configured to, when operated by a user, produce a spark to generate and retain a flame by burning at least a portion of the flammable fluid.
Cover 724 includes an enclosure 726 and a pair of rigid flaps 728 and 730. In some examples, flaps 728 and 730 may be mechanically fastened to enclosure 726 by, for example, one or more of adhesive bonding, friction fit of corresponding features, mechanical fasteners, or combinations thereof. To facilitate adhesive bonding, the contact surfaces of one or both of enclosure 726 and flaps 728 and 730 may define adhesive overflow channels, such as channels 780A and 780B (
In some examples, enclosure 726 defines one or more registration features, such as registration protrusion 727. Flaps 728 and 730 define one or more corresponding registration features, such as aperture 729. Aperture 729 is configured to receive at least partially therethrough a portion of registration protrusion 727. In other example, the registration features and corresponding registration features may include any suitable features, such as, for example, dimples and corresponding recesses, ridges and corresponding valleys, convex curved surfaces and corresponding concave curved surfaces, or the like. The registration features and corresponding registration features may improve the mechanical coupling of enclosure 726 to flaps 728 and 730 compared to enclosure-flap interfaces without such features.
Each of flaps 728 and 720 include respective pivot members, such as posts 740A and 740B (collectively, posts 740). Posts 740 are configured as protrusions extending inwardly from flaps 728 into at least a portion of housing body 722. In some examples, the at least portion of housing body 722 may include one or more slots or detents defined by housing body 722, as discussed in greater detail below. The interaction of posts 740 with the slots, the detents, or both is configured to provide selectively constrained motion of cover 724 relative to housing body 722.
Posts 740 may be separately formed from and mechanically coupled (e.g., adhesively bonded with or friction fit to) flaps 728 and 730. In some examples, posts 740 may include press-fit pins or pin-nuts received through apertures defined by flaps 728 and 730. In other examples, posts 740 may be integrally formed with flaps 728 and 730. In some examples, posts 740 may include bearings or other features configured to facilitate movement of posts 740 within the slots, the detents, or both.
When housing body 722 and cover 724 are in select relative positions, orientations, or both, posts 740 may be received at least partially within respective slots or detents. Slots may include, for example, slots 734 and 736. Slot 734 includes a linear slot extending substantially parallel to flaps 728 and 730. Slot 736 includes an arcuate portion (e.g., semi-circle shaped volume) extending in a plane substantially parallel to flaps 728 and 730. Each of slots 734 and 736 are sized to receive therein, in sliding engagement, posts 740. In other examples, slots may include other linear or arcuate shapes to constrain movement of housing body 722 relative to cover 724.
In some examples, slots may include ramped sections configured to provide an increasing resistance when housing body 722 is moved in a first direction relative to cover 724 and a decreasing resistance when housing body 722 is moved in a second direction (e.g., opposite the first direction) relative to cover 724. For example, moving housing body 722 relative to cover 724 in a first direction (e.g., from a close configuration to a partially open configuration, as indicated by arrow 710 in
Detents may include, for example, detents 776A, 776B, 776C, 776D, 776E, 776F, 776G, and 776H (collectively, detents 776). Each of detents 776 includes a recessed region of housing body 722 relative to a surrounding region. The recessed region is sized to receive therein at least a portion of a post 740. The interaction of posts 740 with detents 776, slots 734, or both provide at least one of fixation of housing body 722 relative to cover 724 in desired locations, positional control or constraint of movement of housing body 722 relative to cover 724, or both. For example, an upper post, e.g., post 740A may be received in a respective detent 776A which is configured as a pivot point allowing post 740B to travel in an arcuate path through semicircular slot 736 (see, e.g.,
In some examples, each of flaps 728 and 730 may extend from a first portion coupled to enclosure 726 toward a second portion configured to engage housing body 722 at an angle extending toward longitudinal axis 721. For example, the angle may be within a range from about 1-degree to about 10-degrees, such as about 5-degrees. By canting flaps 728 and 730 inward toward longitudinal axis 721, when housing body 722 is positioned between both of flaps 728 and 730, flaps 728 and 730 may exert a compressive force on housing body 722. The compressive force may increase a friction between at least a portion of flaps 728 and 730, such as pivots 740, with at least a portion of housing body 722, such as slots 734 or 736 defined by housing body 722. Additionally, or alternatively, the compressive force may enable pivots 740 to seat within one or more detents 776 defined by a portion of housing body 722 when cover 724 is in a selected position and/or orientation relative to housing body 722. In this way, post 740 of flaps 728 and 730 interact with slots 734 and 736, detents 776, or both as a ball-detent mechanisms without additional springs. Thus, the ball-detent mechanism is less susceptible to debris intrusion or wear and manufacturing is simplified.
During use, any operator may manipulate lighter 720 in several configurations. Example configurations of lighter 720 include, but are not limited to, closed, partially open, partially actuated, fully actuated, fully open, and extended configurations. Example techniques of operating lighter 720 include manipulation of lighter 720 in one or more of the configurations described below.
As illustrated in
In a substantially similar manner, as illustrated in
As illustrated in the exploded view of
Internal fuel body 857 is disposed in fuel body 847. Internal fuel body 857 is configured to retain therein a fuel such as naphtha. In some examples, internal fuel body 857 may include a preformed volume of natural fiber material, such as cotton, or a synthetic fiber material.
Firebox plate 851 and felt pad 853 may be configured to flank the respective top and bottom surfaces of internal fuel body 857 when positioned within fuel body 847. In some examples, firebox plate 851 is configured to substantially seal liquid and/or vapor from leaving fuel body 847, except through a wick.
Wick 855 may include a natural fiber material, such as cotton, or a synthetic fiber material having a metal reinforced weave and defining an arcuate path within internal fuel body 857. The arcuate path of wick 855 may promote saturation of wick 855 with the fuel. In some examples, wick 855 may be configured to extend from the wick aperture of firebox plate 851 at an angle canted toward the flame opening of windscreen 846. The canted angle may be within a range from about 1-degree to about 45-degrees, such as within a range from about 5-degrees to about 20-degrees, relative to an axis extending perpendicular to firebox plate 851. The canted angle of wick 855 may provide a larger flame, a flame less suitable to extinguishing from wind, or both.
Flint tube 849 includes a tube, a flint stone, a pin, a spring, and a spring tension adjustment screw. Flint wheel 850 is rotatable coupled to housing body 822, e.g., at or adjacent windscreen 846, by a pin.
As illustrated in
Additionally, the contact surface may define an angle 852. When flint wheel 850 is turned to abrade a flint of flint tube 849, sparks produced at contact surface 859 may be projected at angle 852 toward a wick. By projecting the sparks at angle 852, the sparks may contact an area of wick 855 further from the fuel source at which a greater portion of fuel is in vapor form. As such, ignitor 848 is configured to ignite wick 855 more easily compared to other configurations. Additionally, or alternatively, the projected sparks may form a broader contact area with wick 855 compared to an ignitor without an offset flint tube and flint wheel. The broader contact area may more easily ignite wick 855 compared to other configurations.
In some examples, housing body 922 includes a valve 931 that is configured to substantially equalize a pressure within housing body 922 with a pressure of an environment external to lighter 920. For example, in response to an altitude change, gases or vapor may pass through valve 931 to substantially equalize the pressure within housing body 922 and a pressure of the environment external to the lighter 920. A substantially equalized pressure may include a pressure differential that still enables an operator to open cover 924 by hand (i.e., the break the seal formed between cover 924 and housing body 922). In some examples, valve 931 may include a gas permeable membrane. In other examples, valve 931 may include a pressure release valve, a ball-detent valve, a duckbill valve, or other valves configured to equalize a pressure within an enclosed volume with an environment external to the enclosed area.
The lighter described herein may be manufactured and/or assembled using any suitable techniques.
All of the features disclosed in this specification (including the references incorporated by reference, including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including references incorporated by reference, any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent, or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any incorporated by reference references, any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed The above references in all sections of this application are herein incorporated by references in their entirety for all purposes.
Although specific examples have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement calculated to achieve the same purpose could be substituted for the specific examples shown. This application is intended to cover adaptations or variations of the present subject matter. Therefore, it is intended that the invention be defined by the attached claims and their legal equivalents, as well as the following illustrative aspects. The above-described aspects embodiments of the invention are merely descriptive of its principles and are not to be considered limiting. Further modifications of the invention herein disclosed will occur to those skilled in the respective arts and all such modifications are deemed to be within the scope of the invention.
This application claims the benefit of U.S. Provisional Patent Application No. 63/452,660, filed on Mar. 16, 2023, which is related to U.S. Provisional Patent Application Nos. 63/078,651, filed Sep. 15, 2021, and Ser. No. 17/476,432, filed Sep. 15, 2021, the entirety of each of which are incorporated herein by reference.
Number | Date | Country | |
---|---|---|---|
63452660 | Mar 2023 | US |