Patent US3938947A successfully refreshed from Google Patents.
US3938947A
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Device for feeding an expanded gaseous fuel to a burner nozzle for instance of a lighter and lighter such as a cigarette lighter provided with such a device
Assignee: UNIFLAM UNIVERSELLE DES FLAMMES S A Ste
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Filing: 1974-12-04
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Granted: 1976-02-17
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Expires: 1994-12-04
Abstract
Abstract Lighter comprising a fuid-tight casing containing liquified gas under pressure, a valve member slidably mounted in said casing and having a compressible porous member forming a pressure reducing means which, in a first position of said valve member, is separated from said liquified gas under pressure and which, in a second position of the valve member, is fed with liquified gas and supplies a burner nozzle with expanded gas.
Inventors
- 👤 Claude Roland Julius Rosenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:06
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/173; F17; F17C; F17C13/00; F17C13/04; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0382
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
225 words
A feeding device for supplying expanded fuel gas to a burner nozzle for instance of a lighter, comprising a sealed or fluid-tight casing divided by a resilient sealing element into a pair of chambers the first one of which communicates with said burner nozzle whereas the second one contains liquified gas under pressure, a valve member formed with a cylindrical bearing area portion inserted in sealing relationship through a cylindrical aperture formed in said sealing element and axially displaceable within said casing, a compressible porous member forming a pressure reducing means which is mounted in said second chamber onto said valve member and is connected through a passageway duct to said first chamber, wherein the improvement consists in that that end portion of said valve member which is located within said second chamber comprises a cup-shaped head in which is disposed said porous member which in a first axial position of said valve member within said casing is separated from said liquified gas under pressure by said head pressed in sealing engaging relationship against said resilient element and which in a second axial position of said valve member in which said head is spaced away from said sealing element, is fed with liquified gas under pressure and supplies said burner nozzle with expanded gas through the medium of said passageway duct and said first chamber.
Claim 2
Dependent Claim
225 words
A feeding device for supplying expanded fuel gas to a burner nozzle for instance of a lighter, comprising a sealed or fluid-tight casing divided by a resilient sealing element into a pair of chambers the first one of which communicates with said burner nozzle whereas the second one contains liquified gas under pressure, a valve member formed with a cylindrical bearing area portion inserted in sealing relationship through a cylindrical aperture formed in said sealing element and axially displaceable within said casing, a compressible porous member forming a pressure reducing means which is mounted in said second chamber onto said valve member and is connected through a passageway duct to said first chamber, wherein the improvement consists in that that end portion of said valve member which is located within said second chamber comprises a cup-shaped head in which is disposed said porous member which in a first axial position of said valve member within said casing is separated from said liquified gas under pressure by said head pressed in sealing engaging relationship against said resilient element and which in a second axial position of said valve member in which said head is spaced away from said sealing element, is fed with liquified gas under pressure and supplies said burner nozzle with expanded gas through the medium of said passageway duct and said first chamber.
Claim 3
Dependent Claim
27 words
A device according to claim 1, wherein said cylindrical bearing area portion of said valve member is slidably mounted in the cylindrical aperture of said sealing element.
Claim 4
Dependent Claim
48 words
A device according to claim 1, wherein the edges of the aperture of said sealing element engage a circumferential groove of the outer surface of said cylindrical bearing area portion of said valve member and are displaced and resiliently strained or deformed by the motion of the latter.
Claim 5
Dependent Claim
115 words
A device according to claim 1, wherein said valve member comprises a cylindrical stem the end of which located in said second chamber carries said cup-shaped head, a hollow cylindrical sleeve inside of which is disposed said cylindrical stem of said valve member and the outer surface of which forms said cylindrical bearing area portion engaged by said sealing element as well as adjusting means mounted on that other end of said stem which is opposite from said head for more or less urging one end of said sleeve in pressing relationship against said porous member placed inside of the head of said valve member and thereby adjusting the flow rate of said expanded gas.
Claim 6
Dependent Claim
43 words
A device according to claim 4, wherein said passageway duct between said pressure reducing porous member and said first chamber consists essentially of the annular clearance gap left between the outer surface of said cylindrical stem and the inner surface of said sleeve.
Claim 7
Dependent Claim
37 words
A device according to claim 4, wherein said passageway duct left between said pressure reducing porous member and said first chamber opens into said first chamber through a port extending through the wall of said cylindrical sleeve.
Claim 8
Dependent Claim
30 words
A device according to claim 4, wherein said other end of said cylindrical valve stem is threaded and screwed into a cylindrical socket threaded inside and forming said adjusting means.
Claim 9
Dependent Claim
29 words
A device according to claim 7, wherein said cylindrical socket extends in sealing relationship through an end wall of said casing forming the top wall of said first chamber.
Claim 10
Dependent Claim
25 words
A device according to claim 1, wherein said sealing element is a flat annular gasket made from resilient material and of substantially rectangular cross section.
Claim 11
Dependent Claim
60 words
A device according to claim 1, wherein said sealing element is mounted so as to be in engagement with an inner annular shoulder of said first chamber and is pressed against said shoulder by one annular end of a cylindrical insert part mounted with a tight fit within said second chamber and inside of which is disposed said valve head.
Claim 12
Dependent Claim
56 words
A device according to claim 10, characterized in that said insert part has the shape of a cup the height of which is slightly larger than that of said valve head and the bottom of which communicates through a depending dip pipe with the lower portion of said first chamber containing said liquified gas under pressure.
Claim 13
Dependent Claim
30 words
A device according to claim 10, wherein said inner surface of said insert part has a polygonal cross section corresponding to that of the outside surface of said valve head.
Claim 14
Dependent Claim
40 words
A device according to claim 1, wherein said valve member is provided with resilient biasing means for returning it to said first axial position in which said pressure reducing porous member is no longer fed with liquified gas under pressure.
Claim 15
Dependent Claim
16 words
A lighter such as a cigarette lighter fitted with a feeding device according to claim 1.
Claim 16
Dependent Claim
61 words
A lighter according to claim 14, wherein said cylindrical stem is screwed with its end opposite from said cup-shaped head into a metal part closing the bottom end of a cylindrical tube portion which forms said valve member and carries at its top end said burner nozzle and igniting means for kindling the expanded gas flowing out from said burner nozzle.
Claim 17
Dependent Claim
50 words
A lighter according to claim 15, wherein said resilient biasing means for said valve member consist of a spring arranged in said second chamber between said cup-shaped head and the bottom of said casing and pressing the edge of said head in sealingly engaging relationship against said resilient sealing element.
References Cited (Backward Citations)
US3367148A
Cited
US3499719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |