US3883289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezo-electric type gas lighter
Assignee: LEO Manufacturing CO Ltd
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Filing: 1973-12-04
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Granted: 1975-05-13
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Expires: 1993-12-04
Abstract
Abstract A piezo-electric gas lighter comprising a case having four side walls and a bottom wall with a through hole for a fixing screw formed integrally and provided with air hole near the upper opening thereof, and, a piezo-electric element unit and a tank inserted into said case. Said piezo-electric element produces discharge between electrodes with high voltages applied thereto when the piezo-electric element is struck with a moving member moving vertically and a hammer. Said tank is provided with a combustion valve on the top thereof and operating means and with a hole for a screw made at the same position as the through hole at the bottom of the case so that said tank may be fixed at the bottom to the bottom wall of the case with the screw.
Inventors
- 👤 Masayuki Fujioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:44
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/28; F23Q2/285; F23Q2/287
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
357 words
A piezo-electric gas lighter comprising: a housing having four side walls, a bottom wall with a hole therein, and an open top; an L-shaped fuel tank, the lower, wider, transverse portion of which fits within the bottom inside of said housing, said fuel tank having projections extending from the top thereof and a screw hole in the bottom in alignment with said hole in said bottom wall of said housing; a combustion valve having a tubular body mounted within the elongated portion of said fuel tank and having a valve body extending through the top of said fuel tank adjacent said projections; operating means having an L-shaped configuration and being pivotally mounted to said projections, said operating means also serving as the cover of said lighter housing when in its normal position with respect to said housing; means coupled between said operating means and said combustion valve to permit fuel to flow out of said valve when said operating means is pivoted away from its normal position; a piezo-electric element positioned on the stepped portion of said fuel tank and extending upward therefrom adjacent and parallel to said elongated portion of said fuel tank, said piezo-electric element having a top plate, said operating means, when in its normal position, having its elongated portion extending across the top of said piezo-electric element and its short transverse portion extending down the side of said piezo-electric element past the top thereof, thereby coupling said piezo-electric element, said fuel tank and said operating means together as a unit; said operating means having means for engaging said top plate of said piezo-electric element for actuation of said piezoelectric element by depression of said top plate to produce an electrical discharge simultaneously with the flow of fuel from said combustion valve to ignite said lighter when said operating means is pivoted away from its normal position; and a screw for removably securing together said housing with the unit comprising said piezo-electric element, said operating means and said fuel tank by passing through said hole in said bottom wall of said housing and engaging said screw hole in the bottom of said fuel tank.
Claim 2
Dependent Claim
357 words
A piezo-electric gas lighter comprising: a housing having four side walls, a bottom wall with a hole therein, and an open top; an L-shaped fuel tank, the lower, wider, transverse portion of which fits within the bottom inside of said housing, said fuel tank having projections extending from the top thereof and a screw hole in the bottom in alignment with said hole in said bottom wall of said housing; a combustion valve having a tubular body mounted within the elongated portion of said fuel tank and having a valve body extending through the top of said fuel tank adjacent said projections; operating means having an L-shaped configuration and being pivotally mounted to said projections, said operating means also serving as the cover of said lighter housing when in its normal position with respect to said housing; means coupled between said operating means and said combustion valve to permit fuel to flow out of said valve when said operating means is pivoted away from its normal position; a piezo-electric element positioned on the stepped portion of said fuel tank and extending upward therefrom adjacent and parallel to said elongated portion of said fuel tank, said piezo-electric element having a top plate, said operating means, when in its normal position, having its elongated portion extending across the top of said piezo-electric element and its short transverse portion extending down the side of said piezo-electric element past the top thereof, thereby coupling said piezo-electric element, said fuel tank and said operating means together as a unit; said operating means having means for engaging said top plate of said piezo-electric element for actuation of said piezoelectric element by depression of said top plate to produce an electrical discharge simultaneously with the flow of fuel from said combustion valve to ignite said lighter when said operating means is pivoted away from its normal position; and a screw for removably securing together said housing with the unit comprising said piezo-electric element, said operating means and said fuel tank by passing through said hole in said bottom wall of said housing and engaging said screw hole in the bottom of said fuel tank.
Claim 3
Dependent Claim
94 words
A lighter according to claim 1 wherein said housing includes air holes through at least one of the side walls thereof adjacent a top corner of said housing; and wherein said operating means is formed with opaque support pieces which pass between said valve body and said air holes when said operating means is in its normal position, thereby occluding said air holes; said air holes being adjacent the nozzle of said combustion valve and being exposed to the interior of said housing when said operating means is pivoted away from its normal position.
Claim 4
Dependent Claim
85 words
A lighter according to claiM 2 wherein the top corners of two opposite side walls of said housing are rounded adjacent the opposite top corner from said air holes, said operating means having a rounded portion configured to operatively engage said rounded corners of said side walls, said rounded corners being concentric with the pivot of said projection from said fuel tank, said operating means sliding around said rounded surfaces of said side walls when pivoted away from its normal position to operate said lighter.
Claim 5
Dependent Claim
83 words
A lighter according to claim 1 in which the operating means consists of a lid and a finger presser formed integrally, said lid having vertical supporting pieces on the both sides under which a pair of projections are provided as high as shaft holes on said supporting pieces and said projections through which pass a shaft, and is supported rotatably on the shaft over the tank, and a member for opening and closing the nozzle is provided between the shaft and said projections.
Claim 6
Dependent Claim
34 words
A lighter according to claim 1 in which a ball rolling along the top plate of the moving member is used as a transmitting means between the operating means and the piezo-electric element unit.
Claim 7
Dependent Claim
161 words
A lighter according to claim 1 wherein said tubular body of said combustion valve is fixed between the bottom and top plates of the tank and has a fuel inlet in the lower portion, said valve body having valve means therein and a nozzle mounted so as to be free to move up and down, said valve means being screwed into the upper portion of said tubular body so as to contact a fuel control material at the bottom thereof, said valve means having an adjusting shaft inserted from the bottom for compressing said fuel control material variably at the top thereof and an adjusting screw for operating said adjusting shaft, the adjusting shaft and the adjusting screw being interconnected by engagement of the adjusting screw with a nut provided for preventing the adjusting shaft from falling, said nut being engaged with threads made on the inner lower wall of the tubular body at the lower end of the adjusting shaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |