US3884618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lighters
Assignee: Genoud et Cie SA
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Filing: 1973-07-05
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Granted: 1975-05-20
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Expires: 1993-07-05
Abstract
Abstract A gas lighter which has a cylindrical body housing a gas reservoir is provided with a pivotal and rotatable lever. The body is provided with a gas outlet channel which is closed by an axial member carried by the lever. An aperture is provided in the lever laterally off-set from the gas outlet channel and constitutes a burner aperture. There is a seal between the burner aperture and gas outlet channel and the lighter ignition system is supported by a rotatable head on which the lever is also supported so that the lever and ignition system rotate simultaneously.
Inventors
- 👤 Guy Neyret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:00
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/162; F23Q2/163
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
100 words
A lighter comprising: a hollow cylindrical body defining a gas reservoir and having an axial passage; a head rotatably mounted on said body and having means for varying the flow cross-section of said passage upon such rotation; a lever pivotably mounted on said head and formed with valve means in axial alignment with said passage for selectively opening and closing same; a burner aperture formed in said lever and laterally offset from said valve means; sealing means between said burner aperture and said passageway; and ignition means on said head for the ignition of gas emanating from said burner aperture.
Claim 2
Dependent Claim
100 words
A lighter comprising: a hollow cylindrical body defining a gas reservoir and having an axial passage; a head rotatably mounted on said body and having means for varying the flow cross-section of said passage upon such rotation; a lever pivotably mounted on said head and formed with valve means in axial alignment with said passage for selectively opening and closing same; a burner aperture formed in said lever and laterally offset from said valve means; sealing means between said burner aperture and said passageway; and ignition means on said head for the ignition of gas emanating from said burner aperture.
Claim 3
Dependent Claim
78 words
A lighter as defined in claim 1 wherein said sealing means comprises: a plurality of concentric grooves formed in said head surrounding said passage; and a plurality of concentric lips formed on said lever surrounding said burner aperture and said valve means, said lips extending into said notches and forming a path between said passage and said burner aperture surrounded by a labyrinth for preventing the lateral escape of gas from said path when said lever is raised.
Claim 4
Dependent Claim
69 words
A lighter as defined in claim 1 wherein said head is formed with a channel aligned with said passage and said sealing means comprises: an upstanding boss formed on said head around said channel; an annular skirt depending from said lever and surrounding said boss; and an annular gasket between said boss and said skirt for preventing lateral escape of gas around said boss when said lever is raised.
Claim 5
Dependent Claim
157 words
The lighter defined in claim 1 wherein: said ignition means includes a flint wheel rotatable on said head, and a flint received in said head and engaging said wheel; said body is formed with an upstanding externally threaded axially central neck traversed by said passage; said head is formed with a downwardly extending axial central internally threaded sleeve threadedly receiving said neck and provided with a channel communicating with said passage; said valve means including a formation on said lever engageable with said channel; said means for varying the flow cross-section of said passage including a deformable member received between said sleeve and said neck and compressible upon relative threaded rotation thereof; and said lighter further comprises a first coil spring surrounding said sleeve and engaging said flint to urge the same against said wheel, and a second spring received in saiD head and biasing said lever to bring said formation into blocking engagement with said channel.
References Cited (Backward Citations)
US3770367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |