US3382793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial piston hydraulic unit
Assignee: Sundstrand Corp
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Filing: 1965-08-09
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Granted: 1968-05-14
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Charles J Gantzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:46
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0064; F01B3/0067; F01B3/0041; F01B3/0052; F01B3/0082; F01B3/0085; F01B3/0088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
AN AXIAL PISTON HYDRAULIC UNIT, COMPRISING: A HOUSING, VALVE MEANS IN SAID HOUSING INCLUDING AN INLET PORT AND AN OUTLET PORT, A SHAFT ROTATABLY SUPPORTED IN SAID HOUSING, A CYLINDER BLOCK ROTATABLE WITH SAID SHAFT AND HAVING ONE END THEREOF SLIDABLY ENGAGING SAID VALVE MEANS, SAID CYLINDER BLOCK HAVING A PLURALITY OF AXIAL CYLINDERS THEREIN, RESILIENT MEANS FOR BIASING SAID CYLINDER BLOCK INTO ENGAGEMENT WITH SAID VALVE MEANS, PISTONS SLIDABLE IN SAID CYLINDER AND HAVING SPHERICAL ENDS PROJECTING THEREFROM, A CAM MEMBER ADJACENT SAID SPHERICAL ENDS ADAPTED TO RECIPROCATE SAID PISTONS, SLIPPERS RECEIVING SAID PISTON ENDS AND CONNECTED TO BE DRIVEN BY THE CAM MEMBER, SAID SPHERICAL ENDS AND SLIPPERS DEFINING PIVOTAL CONNECTIONS, A GENERALLY SPHERICAL RETAINING MEMBER SURROUNDING SAID SHAFT, A RETAINING PLATE ENGAGING SAID SPHERICAL MEMBER AND ENGAGING SAID SLIPPERS, RESILIENT MEANS ENGAGING SAID SPHERICAL MEMBER FOR URGING THE SLIPPERS TOWARD SAID CAM MEMBER, SAID CYLINDER BLOCK AND SPHERICAL MEMBER HAVING INTERENGAGING DRIVE MEANS, SAID SPHERICAL MEMBER AND SHAFT HAVING INTERENGAGING DRIVE MEANS, AND MEANS SEPARATE FROM SAID DRIVE MEANS FOR SUPPORTING SAID CYLINDER BLOCK ON SAID SHAFT AND PERMITTING LIMITED MISALIGNMENT THEREBETWEEN.
Claim 2
Dependent Claim
185 words
AN AXIAL PISTON HYDRAULIC UNIT, COMPRISING: A HOUSING, VALVE MEANS IN SAID HOUSING INCLUDING AN INLET PORT AND AN OUTLET PORT, A SHAFT ROTATABLY SUPPORTED IN SAID HOUSING, A CYLINDER BLOCK ROTATABLE WITH SAID SHAFT AND HAVING ONE END THEREOF SLIDABLY ENGAGING SAID VALVE MEANS, SAID CYLINDER BLOCK HAVING A PLURALITY OF AXIAL CYLINDERS THEREIN, RESILIENT MEANS FOR BIASING SAID CYLINDER BLOCK INTO ENGAGEMENT WITH SAID VALVE MEANS, PISTONS SLIDABLE IN SAID CYLINDER AND HAVING SPHERICAL ENDS PROJECTING THEREFROM, A CAM MEMBER ADJACENT SAID SPHERICAL ENDS ADAPTED TO RECIPROCATE SAID PISTONS, SLIPPERS RECEIVING SAID PISTON ENDS AND CONNECTED TO BE DRIVEN BY THE CAM MEMBER, SAID SPHERICAL ENDS AND SLIPPERS DEFINING PIVOTAL CONNECTIONS, A GENERALLY SPHERICAL RETAINING MEMBER SURROUNDING SAID SHAFT, A RETAINING PLATE ENGAGING SAID SPHERICAL MEMBER AND ENGAGING SAID SLIPPERS, RESILIENT MEANS ENGAGING SAID SPHERICAL MEMBER FOR URGING THE SLIPPERS TOWARD SAID CAM MEMBER, SAID CYLINDER BLOCK AND SPHERICAL MEMBER HAVING INTERENGAGING DRIVE MEANS, SAID SPHERICAL MEMBER AND SHAFT HAVING INTERENGAGING DRIVE MEANS, AND MEANS SEPARATE FROM SAID DRIVE MEANS FOR SUPPORTING SAID CYLINDER BLOCK ON SAID SHAFT AND PERMITTING LIMITED MISALIGNMENT THEREBETWEEN.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |