US3766946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame adjusting device for gas lighters
Assignee: Braun GmbH
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Filing: 1971-08-12
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Granted: 1973-10-23
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Expires: 1991-08-12
Abstract
Abstract A flame adjusting device of a gas lighter has a disk in the conduit between the fuel tank and the burner valve, which disk is porous and substantially incompressible and is provided with at least one elastic body in pressure contact with a major surface of the disk, and the area of contact between the elastic body and the disk is variable with the pressure exerted therebetween, thereby varying the flow of gas in the conduit.
Inventors
- 👤 C Corarg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:22
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/173
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
107 words
A flame adjusting device, for use in connection with a gas lighter having a conduit between the fuel tank and the burner valve and an incompressible porous member in said conduit, comprising in combination, at least one elastic body operable to engage at least a portion of a surface of said porous member, the area of said portion varying in accordance with the variations of pressure exerted between said elastic body and said surface, thereby adjusting the flow of gas in at least a portion of said conduit, and a second elastic body operable to engage at least a portion of another surface of said porous member.
Claim 2
Dependent Claim
107 words
A flame adjusting device, for use in connection with a gas lighter having a conduit between the fuel tank and the burner valve and an incompressible porous member in said conduit, comprising in combination, at least one elastic body operable to engage at least a portion of a surface of said porous member, the area of said portion varying in accordance with the variations of pressure exerted between said elastic body and said surface, thereby adjusting the flow of gas in at least a portion of said conduit, and a second elastic body operable to engage at least a portion of another surface of said porous member.
Claim 3
Dependent Claim
34 words
A flame adjusting device, as claimed in claim 1, said second elastic body having a shape similar to that of said first body and being arranged substantially symmetrically relative thereto about said porous member.
Claim 4
Dependent Claim
103 words
A flame adjusting deviCe for use in connection with a gas lighter having a conduit between the fuel tank and the burner valve and an incompressible porous member in said conduit, comprising in combination, at least one elastic body operable to engage at least a portion of a surface of said porous member, the area of said portion varying in accordance with the variations of pressure exerted between said elastic body and said surface, thereby adjusting the flow of gas in at least a portion of said conduit, said elastic body including a plurality of co-axial O-rings having decreasing height with decreasing radius.
Claim 5
Dependent Claim
103 words
A flame adjusting deviCe for use in connection with a gas lighter having a conduit between the fuel tank and the burner valve and an incompressible porous member in said conduit, comprising in combination, at least one elastic body operable to engage at least a portion of a surface of said porous member, the area of said portion varying in accordance with the variations of pressure exerted between said elastic body and said surface, thereby adjusting the flow of gas in at least a portion of said conduit, said elastic body including a plurality of co-axial O-rings having decreasing height with decreasing radius.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |