US5048554A
Expired / Lapsed
US
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Valve for a gas cylinder
Assignee: Luxembourg Patent Co SA
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Filing: 1990-09-24
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Granted: 1991-09-17
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Expires: 2010-09-24
Abstract
Abstract The valve has an outlet safety channel (20) closed by a burstable diaphragm (26) wedged between the body (10) of the valve and a plug (24) fitted detachably in the body (10) of the valve, the said plug (24) comprising an axial passage (28) in communication with the outside and filled with a fusible material (32) up to where it comes into contact with the diaphragm (26). A rubber seal (30) resistant to temperatures above the melting point of the fusible material obstructs the axial passage (28) towards the outside.
Inventors
- 👤 Paul Kremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:15
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/304; F16K1/305; F16K1/307; F16K17/00; F16K17/40; F17; F17C; F17C13/00; F17C13/12; F17C13/123; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0311; F17C2205/0314; F17C2205/0317; F17C2205/0323; F17C2205/0388; F17C2205/0394; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1774; Y10T137/1797; Y10T137/1804
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
94 words
Valve for a gas cylinder, comprising an outlet safety channel (20) closed by a burstable diaphragm (26) wedged between the body (10) of the valve and a plug (24) mounted detachably in the body (10) of the valve, the said plug (24) comprising an axial passage (28) in communication with the outside and filled with a fusible material (32) up to where it comes into contact with the diaphragm (26), characterized by elastic means obstructing, towards the outside, the axial passage (28) and resistant to temperatures above the melting point of the fusible material.
Claim 2
Dependent Claim
94 words
Valve for a gas cylinder, comprising an outlet safety channel (20) closed by a burstable diaphragm (26) wedged between the body (10) of the valve and a plug (24) mounted detachably in the body (10) of the valve, the said plug (24) comprising an axial passage (28) in communication with the outside and filled with a fusible material (32) up to where it comes into contact with the diaphragm (26), characterized by elastic means obstructing, towards the outside, the axial passage (28) and resistant to temperatures above the melting point of the fusible material.
Claim 3
Dependent Claim
59 words
Valve according to claim 1, characterized in that the said axial passage (28) communicates with the outside through radial holes (28a) opening into an outer peripheral groove of the plug (24) and in that the said elastic means consist of an O-ring seal (30) housed in the said groove and preventing the fusible material from flowing out when liquid.
Claim 4
Dependent Claim
15 words
Valve according to claim 2, characterized in that the seal (30) is made from rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-09-16 | 1995-03-18 | 1995-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-16 | 1999-03-18 | 1999-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-16 | 2003-03-18 | 2003-09-17 | $7700.00 | Window Closed / Lapsed |