Patent US3080852A successfully refreshed from Google Patents.
US3080852A
Expired / Lapsed
US
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Variable stroke actuator
Assignee: Motors Liquidation Co
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Filing: 1961-08-03
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Granted: 1963-03-12
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Expires: 1981-08-03
Abstract
No abstract record available.
Inventors
- 👤 Howard M Geyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:10
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
AN ACTUATOR ASSEMBLY INCLUDING, A CYLINDER HAVING A RECIPROCABLE PISTON DISPOSED THEREIN WITH AN AXIALLY EXTENDING HOLLOW PISTON ROD, A NUT RIGIDLY ATTACHED TO SAID PISTON FOR MOVEMENT THEREWITH, A HOLLOW SCREW SHAFT COAXIALLY DISPOSED WITHIN SAID CYLINDER AND THREADEDLY ENGAGING SAID NUT, SAID SCREW SHAFT HAVING AN ENLARGED FLANGE ADJACENT ITS INBOARD END CONSTITUTING A STOP ENGAGEABLE WITH THE END OF SAID CYLINDER FOR LIMITING MOVEMENT OF SAID PISTON IN ONE DIRECTION, SAID SCREW SHAFT BEING NORMALLY MOVABLE WITH SAID PISTON BUT CAPABLE OF AXIAL DISPLACEMENT RELATIVE TO SAID PISTON UPON ROTATION THEREOF, AND MEANS OPERABLE TO ROTATE SAID SCREW SHAFT AND DISPLACE THE SAME RELATIVE TO SAID PISTON SO AS TO DISPLACE THE SAME RELATIVE TO SAID PISTON SO AS TO VARY THE STROKE OF SAID ACTUATOR IN SAID ONE DIRECTION.
References Cited (Backward Citations)
US3003470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |