US3285274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve unit for liquefied gas containers
Assignee: Application des Gaz SA
•
Filing: 1964-05-26
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Granted: 1966-11-15
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Expires: 1984-05-26
Abstract
No abstract record available.
Inventors
- 👤 Bouvier Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:53
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/301; F16K1/303; F16K1/14; F16K15/00; F16K15/02; F16K15/04; F16K15/044; G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/103; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/36; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6137; Y10T137/7722; Y10T137/7771; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A VALVE UNIT FOR LIQUEFIED GAS-CARTRIDGE HAVING AN OBTURATING BALL URGED AGAINST A SEAT BY THE SIMULTANEOUS ACTION OF GAS PRESSURE IN THE CARTRIDGE AND A HELICAL RETURN SPRING, THE COMBINATION OF AN AXIALLY PERFORATED DIFFERENTIAL PISTON SLIDABLY MOUNTED WITHIN A SOCKET ADAPTED TO GAS-TIGHTLY COOPERATE WITH A SMALL-DIAMETER-END OF SAID DIFFERENTIAL PISTON BY MEANS OF A SEAL CLOSURE MEANS, THE BIG-DIAMETER-END OF SAID DIFFERENTIAL PISTON BEING PERMANENTLY CONNECTED TO THE INNER SPACE ADJACENT SAID OBTURATING BALL, AND RECEIVING GAS FROM THE INNER SPACE OF SAID GAS-CARTRIDGE ONLY AFTER DISPLACEMENT OF THE SAID OBDURATING BALL FROM ITS SEAT AND THE GAS FROM THE INNER SPACE OF THE CARTRIDGE DISPLACING SAID PISTON AWAY FROM SAID CLOSURE FOR DISCHARGING THE GAS FROM SAID CARTRIDGE.
Claim 2
Dependent Claim
123 words
IN A VALVE UNIT FOR LIQUEFIED GAS-CARTRIDGE HAVING AN OBTURATING BALL URGED AGAINST A SEAT BY THE SIMULTANEOUS ACTION OF GAS PRESSURE IN THE CARTRIDGE AND A HELICAL RETURN SPRING, THE COMBINATION OF AN AXIALLY PERFORATED DIFFERENTIAL PISTON SLIDABLY MOUNTED WITHIN A SOCKET ADAPTED TO GAS-TIGHTLY COOPERATE WITH A SMALL-DIAMETER-END OF SAID DIFFERENTIAL PISTON BY MEANS OF A SEAL CLOSURE MEANS, THE BIG-DIAMETER-END OF SAID DIFFERENTIAL PISTON BEING PERMANENTLY CONNECTED TO THE INNER SPACE ADJACENT SAID OBTURATING BALL, AND RECEIVING GAS FROM THE INNER SPACE OF SAID GAS-CARTRIDGE ONLY AFTER DISPLACEMENT OF THE SAID OBDURATING BALL FROM ITS SEAT AND THE GAS FROM THE INNER SPACE OF THE CARTRIDGE DISPLACING SAID PISTON AWAY FROM SAID CLOSURE FOR DISCHARGING THE GAS FROM SAID CARTRIDGE.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |