Patent US2812462A successfully refreshed from Google Patents.
Patent US3216466A successfully refreshed from Google Patents.
US3216466A
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Pressure actuated release mechanism
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1961-09-20
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Granted: 1965-11-09
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Expires: 1981-09-20
Abstract
No abstract record available.
Inventors
- 👤 Edward G Simko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:27
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; B64B1/64; B64B1/62; F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10S; Y10S116/00; Y10S116/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A PRESSURE ACTUATED RELEASE MECHANISM COMPRISING A HOUSING INCLUDING A RETAINER MEMBER AND A SLEEVE MEMBER, MEANS FOR RELEASABLY CONNECTING SAID MEMBERS TOGETHER, A BASE MEMBER CONNECTED TO ONE END OF SAID RETAINER MEMBER, SAID BASE MEMBER HAVING A CHAMBER THEREIN, SAID CHAMBER PROVIDED WITH A PISTON SEAT LOCATED THEREIN, INLET MEANS IN SAID BASE MEMBER, A PISTON SLIDABLY DISPOSED WITHIN THE RETAINER MEMBER AND ADAPTED TO BE POSITIONED IN MORE THAN ONE POSITION, SAID PISTON HAVING A BORE EXTENDING FROM A BASE END TO THE OPPOSITE END, THE BASE END OF SAID PISTON ADAPTED TO SEAT ON SAID PISTON SEAT, SAID PISTON SEAT LIMITING MOVEMENT OF SAID PISTON BEYOND A PREDETERMINED DISTANCE AND MEANS FOR MAINTAINING SAID PISTON IN A PREDETERMINED POSITION, SAID MEANS INCLUDING A PLUNGER SLIDABLY DISPOSED WITHIN THE CHAMBER IN THE BASE MEMBER WHICH IS ADAPTED TO ENGAGE THE UNDER SURFACE OF THE BASE END OF THE PISTON PROJECTION OF SAID PISTON INTO SAID CHAMBER BEING DEPENDENT ON THE POSTION OF SAID PLUNGER IN SAID BASE MEMBER.
Claim 2
Dependent Claim
171 words
A PRESSURE ACTUATED RELEASE MECHANISM COMPRISING A HOUSING INCLUDING A RETAINER MEMBER AND A SLEEVE MEMBER, MEANS FOR RELEASABLY CONNECTING SAID MEMBERS TOGETHER, A BASE MEMBER CONNECTED TO ONE END OF SAID RETAINER MEMBER, SAID BASE MEMBER HAVING A CHAMBER THEREIN, SAID CHAMBER PROVIDED WITH A PISTON SEAT LOCATED THEREIN, INLET MEANS IN SAID BASE MEMBER, A PISTON SLIDABLY DISPOSED WITHIN THE RETAINER MEMBER AND ADAPTED TO BE POSITIONED IN MORE THAN ONE POSITION, SAID PISTON HAVING A BORE EXTENDING FROM A BASE END TO THE OPPOSITE END, THE BASE END OF SAID PISTON ADAPTED TO SEAT ON SAID PISTON SEAT, SAID PISTON SEAT LIMITING MOVEMENT OF SAID PISTON BEYOND A PREDETERMINED DISTANCE AND MEANS FOR MAINTAINING SAID PISTON IN A PREDETERMINED POSITION, SAID MEANS INCLUDING A PLUNGER SLIDABLY DISPOSED WITHIN THE CHAMBER IN THE BASE MEMBER WHICH IS ADAPTED TO ENGAGE THE UNDER SURFACE OF THE BASE END OF THE PISTON PROJECTION OF SAID PISTON INTO SAID CHAMBER BEING DEPENDENT ON THE POSTION OF SAID PLUNGER IN SAID BASE MEMBER.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |