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US3587632A
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Overpressure relief valve having a fail-safe releasable valve stem guide
Assignee: United States Atomic Energy Commission
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Filing: 1969-10-01
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Granted: 1971-06-28
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Expires: 1989-10-01
Abstract
Abstract A SPRING-LOADED VALVE HEAD NORMALLY OPERABLE TO BE MOVED UNDER DIFFERENTIAL PRESSURE AWAY FROM A SEAT. A STEM EXTENDING FROM THE HEAD IS GUIDED IN A SLEEVE THAT IS MOUNTED IN THE VALVE HOUSING BY MEANS OF AN O-RING THAT IS FORCE FITTED BETWEEN THE SLEEVE AND HOUSING IN OPPOSING GROOVES IN THE SLEEVE AND HOUSING. THE GUIDE, THEREFORE, IS RELEASABLE FROM THE HOUSING TO PERMIT VALVE HEAD MOVEMENT AWAY FROM THE SEAT IN THE EVENT THE STEM BECOMES BOUNCE IN THE SLEEVE DURING AN OVERPRESSURE.
Inventors
- 👤 Haile S Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:45
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7868; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932; Y10T137/7933; Y10T137/8158; Y10T137/8225; Y10T137/8275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |