US3133476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary actuators
Assignee: Motors Liquidation Co
•
Filing: 1962-05-08
•
Granted: 1964-05-19
•
Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 Howard M Geyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:23
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/068; F15B13/00; F15B13/10; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A ROTARY ACTUATOR INCLUDING, A CYLINDER TUBE HAVING A CAP AT ONE END, AN OUTPUT MEMBER ROTATABLY JOURNALLED IN THE OTHER END OF SAID TUBE, A THROUGH SHAFT JOURNALLED IN THE OTHER END OF SAID TUBE, A THROUGH SHAFT JOURNALLED IN SAID END CAP AND SAID OUTPUT MEMBER, SAID THROUGH SHAFT HAVING AN INTERMEDIATE BULKHEAD DISPOSED WITHIN SAID CYLINDER TUBE WITH TUBULAR PORTIONS EXTENDING IN OPPOSITE DIRECTIONS THEREFROM, A PAIR OF INTERCONNECTED, TANDEM ARRANGED PISTONS DISPOSED WITHIN SAID CYLINDER TUBE AND DEFINING A PAIR OF EXPANSIBLE CHAMBERS ON OPPOSITE SIDES OF SAID BULKHEAD, STATIONARY REACTION MEANS IN SAID CYLINDER TUBE, A HELICAL CONNECTION BETWEEN ONE OF SAID PISTONS AND SAID STATIONARY REACTION MEANS, A HELICAL CONNECTION BETWEEN THE OTHER OF SAID PISTONS AND SAID OUTPUT MEMBER WHEREBY PISTON RECIPROCATION WILL IMPART ROTATION TO SAID OUTPUT MEMBER, SAID THROUGH SHAFT HAVING A THREADED PORTION ADJACENT ONE END THEREOF, AND A NUT ENGAGING SAID THREADED PORTION AND ENGAGEABLE WITH SAID TANDEM ARRANGED PISTONS FOR MECHANICALLY IMPARTING MOVEMENT THERETO UPON ROTATION OF SAID THROUGH SHAFT IN ONE DIRECTION.
Claim 2
Dependent Claim
175 words
A ROTARY ACTUATOR INCLUDING, A CYLINDER TUBE HAVING A CAP AT ONE END, AN OUTPUT MEMBER ROTATABLY JOURNALLED IN THE OTHER END OF SAID TUBE, A THROUGH SHAFT JOURNALLED IN THE OTHER END OF SAID TUBE, A THROUGH SHAFT JOURNALLED IN SAID END CAP AND SAID OUTPUT MEMBER, SAID THROUGH SHAFT HAVING AN INTERMEDIATE BULKHEAD DISPOSED WITHIN SAID CYLINDER TUBE WITH TUBULAR PORTIONS EXTENDING IN OPPOSITE DIRECTIONS THEREFROM, A PAIR OF INTERCONNECTED, TANDEM ARRANGED PISTONS DISPOSED WITHIN SAID CYLINDER TUBE AND DEFINING A PAIR OF EXPANSIBLE CHAMBERS ON OPPOSITE SIDES OF SAID BULKHEAD, STATIONARY REACTION MEANS IN SAID CYLINDER TUBE, A HELICAL CONNECTION BETWEEN ONE OF SAID PISTONS AND SAID STATIONARY REACTION MEANS, A HELICAL CONNECTION BETWEEN THE OTHER OF SAID PISTONS AND SAID OUTPUT MEMBER WHEREBY PISTON RECIPROCATION WILL IMPART ROTATION TO SAID OUTPUT MEMBER, SAID THROUGH SHAFT HAVING A THREADED PORTION ADJACENT ONE END THEREOF, AND A NUT ENGAGING SAID THREADED PORTION AND ENGAGEABLE WITH SAID TANDEM ARRANGED PISTONS FOR MECHANICALLY IMPARTING MOVEMENT THERETO UPON ROTATION OF SAID THROUGH SHAFT IN ONE DIRECTION.
References Cited (Backward Citations)
US2694384A
Cited
US2747549A
Cited
US2765778A
Cited
US2974601A
Cited
US2932206A
Cited
US2955579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |