Patent US3136220A successfully refreshed from Google Patents.
US3136220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled high energy actuator
Assignee: General Dynamics Corp
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Filing: 1961-04-12
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Granted: 1964-06-09
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Expires: 1981-04-12
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Kamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:16
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/149; F15B15/20; F15B15/22; F15B15/221
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
AN ACTUATOR COMPRISING HOUSING MEANS HAVING A WALL MEMBER WITH AN ORIFICE THEREIN, A MOVABLE PISTON POSITIONED WITHIN SAID HOUSING MEANS AND HAVING AN UNDERSURFACE FACING SAID WALL MEMBER, A THRUST MEMBER COUPLED TO SAID PISTON AND ARRANGED TO TRANSMIT ENERGY DEVELOPED BY SAID PISTON, MEANS FOR APPLYING A FLUID PRESSURE FORCE ON SAID PISTON TO URGE SAID PISTON TOWARD SAID WALL MEMBER, MEANS PROVIDING A SEAL BETWEEN SAID PISTON UNDERSURFACE AND SAID WALL MEMBER TO SURROUND SAID ORIFICE AND TO DEFINE AN AREA OF SAID UNDERSURFACE EXPOSED THROUGH SAID ORIFICE AND AN INCREASED AREA OF SAID UNDERSURFACE, SAID SEAL, WALL MEMBER AND INCREASED AREA OF SAID UNDERSURFACE DEFINING A SPACE, MEANS FOR APPLYING A PRESSURE FLUID TO EXERT PRESSURE THROUGH SAID ORIFICE ON SAID EXPOSED UNDERSURFACE AREA TO OVERBALANCE SAID FLUID PRESSURE FORCE AND TO ELIMINATE SAID SEAL AND ALLOW SAID PRESSURE FLUID TO ACT OVER SAID INCREASED UNDERSURFACE AREA, FLUID PATH MEANS WITHIN SAID WALL MEMBER INTERCONNECTING SAID SPACE AND THE EXTERIOR OF SAID HOUSING MEANS, SAID FLUID PATH MEANS HAVING LOW RESISTANCE TO FLOW OF SAID PRESSURE FLUID LEAKING PAST SAID SEAL WHILE SAID PRESSURE FLUID IS APPLIED TO OVERBALANCE SAID FORCE
Claim 2
Dependent Claim
195 words
AN ACTUATOR COMPRISING HOUSING MEANS HAVING A WALL MEMBER WITH AN ORIFICE THEREIN, A MOVABLE PISTON POSITIONED WITHIN SAID HOUSING MEANS AND HAVING AN UNDERSURFACE FACING SAID WALL MEMBER, A THRUST MEMBER COUPLED TO SAID PISTON AND ARRANGED TO TRANSMIT ENERGY DEVELOPED BY SAID PISTON, MEANS FOR APPLYING A FLUID PRESSURE FORCE ON SAID PISTON TO URGE SAID PISTON TOWARD SAID WALL MEMBER, MEANS PROVIDING A SEAL BETWEEN SAID PISTON UNDERSURFACE AND SAID WALL MEMBER TO SURROUND SAID ORIFICE AND TO DEFINE AN AREA OF SAID UNDERSURFACE EXPOSED THROUGH SAID ORIFICE AND AN INCREASED AREA OF SAID UNDERSURFACE, SAID SEAL, WALL MEMBER AND INCREASED AREA OF SAID UNDERSURFACE DEFINING A SPACE, MEANS FOR APPLYING A PRESSURE FLUID TO EXERT PRESSURE THROUGH SAID ORIFICE ON SAID EXPOSED UNDERSURFACE AREA TO OVERBALANCE SAID FLUID PRESSURE FORCE AND TO ELIMINATE SAID SEAL AND ALLOW SAID PRESSURE FLUID TO ACT OVER SAID INCREASED UNDERSURFACE AREA, FLUID PATH MEANS WITHIN SAID WALL MEMBER INTERCONNECTING SAID SPACE AND THE EXTERIOR OF SAID HOUSING MEANS, SAID FLUID PATH MEANS HAVING LOW RESISTANCE TO FLOW OF SAID PRESSURE FLUID LEAKING PAST SAID SEAL WHILE SAID PRESSURE FLUID IS APPLIED TO OVERBALANCE SAID FORCE
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |