Patent US3263425A successfully refreshed from Google Patents.
US3263425A
Expired / Lapsed
US
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Hydraulic actuating system
Assignee: Motors Liquidation Co
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Filing: 1963-09-23
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Granted: 1966-08-02
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Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Robert P Rohde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:33
CPC Classifications
B; B62; B62D; B62D3/00; B62D3/14; F; F15; F15B; F15B7/00; F15B7/005; F15B7/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
IN COMBINATION WITH A REVERSELY DRIVABLE HYDRAULIC MOTOR HAVING GREATER FLUID DISPLACEMENT IN ONE DIRECTION OF OPERATION THAN IN THE OPPOSITE DIRECTION, A REVERSELY DRIVABLE POSITIVE DISPLACEMENT PUMP IN FLUID DRIVING RELATION WITH SAID MOTOR, SAID PUMP HAIVNG EQUAL FLUID DISPLACEMENT IN BOTH DIRECTIONS OF OPERATION, A SUMP HAVING A FIRST ONE-WAY FLOW CONNECTIONS WITH THE MOTOR ACCOMMODATING FLOW TO THE SUMP OF THE VOLUME OF MOTOR DISPLACED FLUID EXCEEDING THE VOLUME OF PUMP DELIVERED FLUID DURING OPERATION IN SAID ONE DIRECTION AND HAVING A SECOND ONE-WAY FLOW CONNECTION WITH THE PUMP ACCOMMODATING FLOW OF FLUID TO THE PUMP TO COMPENSATE FOR THE VOLUME OF PUMP DELIVERED FLUID EXCEEDING THE VOLUME OF MOTOR RETURNED FLUID DURING OPERATION IN SAID OPPOSITE DIRECTION, AND PUMP DRIVING AND DRIVEN MEMBERS HAVING A LOST MOTION CONNECTION THEREBETWEEN, SAID FIRST ONE-WAY FLOW CONNECTION INCLUDING A PASSAGE IN ONE OF SAID MEMBERS AND A VALVE OPERABLE BY THE OTHER OF SAID MEMBERS TO CLOSE SAID PASSAGE WHEN SAID LOST MOTION IS TAKEN UP IN RESPONSE TO OPERATION OF THE PUMP IN SAID OPPOSITE DIRECTION.
Claim 2
Dependent Claim
178 words
IN COMBINATION WITH A REVERSELY DRIVABLE HYDRAULIC MOTOR HAVING GREATER FLUID DISPLACEMENT IN ONE DIRECTION OF OPERATION THAN IN THE OPPOSITE DIRECTION, A REVERSELY DRIVABLE POSITIVE DISPLACEMENT PUMP IN FLUID DRIVING RELATION WITH SAID MOTOR, SAID PUMP HAIVNG EQUAL FLUID DISPLACEMENT IN BOTH DIRECTIONS OF OPERATION, A SUMP HAVING A FIRST ONE-WAY FLOW CONNECTIONS WITH THE MOTOR ACCOMMODATING FLOW TO THE SUMP OF THE VOLUME OF MOTOR DISPLACED FLUID EXCEEDING THE VOLUME OF PUMP DELIVERED FLUID DURING OPERATION IN SAID ONE DIRECTION AND HAVING A SECOND ONE-WAY FLOW CONNECTION WITH THE PUMP ACCOMMODATING FLOW OF FLUID TO THE PUMP TO COMPENSATE FOR THE VOLUME OF PUMP DELIVERED FLUID EXCEEDING THE VOLUME OF MOTOR RETURNED FLUID DURING OPERATION IN SAID OPPOSITE DIRECTION, AND PUMP DRIVING AND DRIVEN MEMBERS HAVING A LOST MOTION CONNECTION THEREBETWEEN, SAID FIRST ONE-WAY FLOW CONNECTION INCLUDING A PASSAGE IN ONE OF SAID MEMBERS AND A VALVE OPERABLE BY THE OTHER OF SAID MEMBERS TO CLOSE SAID PASSAGE WHEN SAID LOST MOTION IS TAKEN UP IN RESPONSE TO OPERATION OF THE PUMP IN SAID OPPOSITE DIRECTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |