US3273578A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crash closed shut-off valve
Assignee: Individual
•
Filing: 1962-08-09
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Granted: 1966-09-20
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Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 John H Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/40; B; B64; B64D; B64D37/00; B64D37/32; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1654; Y10T137/8593; Y10T137/87917; Y10T137/87925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A CRASH CLOSED SHUT-OFF VALVE FOR USE IN A FLUID SYSTEM AND ACTUATED BY DISPLACEMENT OF COMPONENTS OF THAT SYSTEM COMPRISING: (A) A VALVE BODY HAVING A FLUID PASSAGE THERETHROUGH; (B) A VALVE CONTROLLING FLUID FLOW IN THE PASSAGE, DISPOSED FOR MOVEMENT ALONG A LONGITUDINAL AXIS WITHIN SAID VALVE BODY BETWEEN A NORMAL VALVE OPEN POSITION AND VALVE CLOSED POSITION; (C) RELEASABLE LOCKING MEANS COACTING BETWEEN SAID VALVE BODY AND SAID VALVE TO LOCK SAID VALVE IN THE VALVE OPEN POSITION UNTIL A PREDETERMINED TENSILE FORCE ACTING ALONG SAID LONGITUDINAL AXIS IS EXERTED ON SAID VALVE; (D) SECOND LOCKING MEANS COACTING BETWEEN SAID VALVE BODY AND SAID VALVE TO LOCK SAID VALVE IN THE VALVE CLOSED POSITION IN RESPONSE TO THE MOVEMENT OF SAID VALVE FROM THE VALVE OPEN POSITION TO THE VALVE CLOSED POSITION; (E) ACTUATING CABLE MEANS ATTACHED TO SAID VALVE BODY AND ADAPTED TO TRANSMIT TENSILE FORCE TO SAID VALVE BODY ALONG SAID LONGITUDINAL AXIS AND TO BREAK, WITHOUT DAMAGE TO THE VALVE AND FLUID SYSTEM, WHEN SAID TENSILE FORCE IS SUBSTANTIALLY GREATER THAN THAT NEEDED TO MOVE THE SAID VALVE TO THE VALVE CLOSED POSITION.
Claim 2
Dependent Claim
189 words
A CRASH CLOSED SHUT-OFF VALVE FOR USE IN A FLUID SYSTEM AND ACTUATED BY DISPLACEMENT OF COMPONENTS OF THAT SYSTEM COMPRISING: (A) A VALVE BODY HAVING A FLUID PASSAGE THERETHROUGH; (B) A VALVE CONTROLLING FLUID FLOW IN THE PASSAGE, DISPOSED FOR MOVEMENT ALONG A LONGITUDINAL AXIS WITHIN SAID VALVE BODY BETWEEN A NORMAL VALVE OPEN POSITION AND VALVE CLOSED POSITION; (C) RELEASABLE LOCKING MEANS COACTING BETWEEN SAID VALVE BODY AND SAID VALVE TO LOCK SAID VALVE IN THE VALVE OPEN POSITION UNTIL A PREDETERMINED TENSILE FORCE ACTING ALONG SAID LONGITUDINAL AXIS IS EXERTED ON SAID VALVE; (D) SECOND LOCKING MEANS COACTING BETWEEN SAID VALVE BODY AND SAID VALVE TO LOCK SAID VALVE IN THE VALVE CLOSED POSITION IN RESPONSE TO THE MOVEMENT OF SAID VALVE FROM THE VALVE OPEN POSITION TO THE VALVE CLOSED POSITION; (E) ACTUATING CABLE MEANS ATTACHED TO SAID VALVE BODY AND ADAPTED TO TRANSMIT TENSILE FORCE TO SAID VALVE BODY ALONG SAID LONGITUDINAL AXIS AND TO BREAK, WITHOUT DAMAGE TO THE VALVE AND FLUID SYSTEM, WHEN SAID TENSILE FORCE IS SUBSTANTIALLY GREATER THAN THAT NEEDED TO MOVE THE SAID VALVE TO THE VALVE CLOSED POSITION.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |