US3138067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator device for hydraulic motors
Assignee: Automobiles Citroen SA
•
Filing: 1961-07-05
•
Granted: 1964-06-23
•
Expires: 1981-07-05
Abstract
No abstract record available.
Inventors
- 👤 Cadiou Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:13
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/06; F03C1/0678; F03C1/0686; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8659; Y10T137/86598; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
DEVICE FOR THE REGULATION OF THE SPEED, THE OUTPUT OR OTHER OPERATING CHARACTERISTICS OF A HYDRAULIC MOTOR OF THE BARREL TYPE COMPRISING A DRIVING PLATE HAVING A VARIABLE INCLINATION, A SLIDE VALVE DISTRIBUTOR, A PISTON ALTERNATIVELY COUPLED BY SAID SLIDE-VALVE DISTRIBUTOR TO THE HIGH PRESSURE AND TO THE LOW PRESSURE SIDES OF THE HYDRAULIC CONTROL CIRCUIT OF THE MOTOR AND ACTING ON THE DRIVING PLATE, TWO CHAMBERS HAVING EACH A MOVABLE WALL AND COMMUNICATING BY THROTTLE VALVES WITH THE EXHAUST CIRCUIT OF THE MOTOR, SAID MOVABLE WALLS BEING OPPOSED AND RIGID WITH SAID SLIDE VALVE REGULATOR, A MOVING MEMBER CONTROLLING THE EXHAUSTS OF SAID CHAMBERS, AND MEANS RESPONSIVE TO THE VARIATION OF AN INPUT QUANTITY DEPENDING UPON THE ROTATION OF SAID MOTOR FOR MOVING SAID MOVING MEMBER.
Claim 2
Dependent Claim
127 words
DEVICE FOR THE REGULATION OF THE SPEED, THE OUTPUT OR OTHER OPERATING CHARACTERISTICS OF A HYDRAULIC MOTOR OF THE BARREL TYPE COMPRISING A DRIVING PLATE HAVING A VARIABLE INCLINATION, A SLIDE VALVE DISTRIBUTOR, A PISTON ALTERNATIVELY COUPLED BY SAID SLIDE-VALVE DISTRIBUTOR TO THE HIGH PRESSURE AND TO THE LOW PRESSURE SIDES OF THE HYDRAULIC CONTROL CIRCUIT OF THE MOTOR AND ACTING ON THE DRIVING PLATE, TWO CHAMBERS HAVING EACH A MOVABLE WALL AND COMMUNICATING BY THROTTLE VALVES WITH THE EXHAUST CIRCUIT OF THE MOTOR, SAID MOVABLE WALLS BEING OPPOSED AND RIGID WITH SAID SLIDE VALVE REGULATOR, A MOVING MEMBER CONTROLLING THE EXHAUSTS OF SAID CHAMBERS, AND MEANS RESPONSIVE TO THE VARIATION OF AN INPUT QUANTITY DEPENDING UPON THE ROTATION OF SAID MOTOR FOR MOVING SAID MOVING MEMBER.
References Cited (Backward Citations)
US1785355A
Cited
US2146117A
Cited
US2674191A
Cited
US2683485A
Cited
US2803112A
Cited
US2860517A
Cited
US2878832A
Cited
US2915985A
Cited
US3033047A
Cited
US3033232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |