US3202106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic positive displacement rotary machines
Assignee: Council of Scientific and Industrial Research
•
Filing: 1963-03-01
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Granted: 1965-08-24
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Firth Donald
- 👤 Hancock Roger Harvey Yorke
- 👤 Meade Christopher Philip John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:26
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/10; F01B3/103; F01B3/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A HYDRAULIC POSITIVE DISPLACEMENT ROTARY MACHINE COMPRISING A CAM MEMBER, A PORT MEMBER, A CYLINDER BLOCK ROTATABLE RELATIVE TO THE CAM MEMBER AND PORT MEMBER, A PLURALITY OF CYLINDER IN THE CYLINDER BLOCK PISTONS RECIPROCABLE IN SAID CYLINDERS UNDER THE CONTROL OF THE CAM MEMBER, A CONTROL MEMBER DISPOSED BETWEEN THE CYLINDER BLOCK AND THE PORT MEMBER, REGISTERING INLET AND OUTLET PORTS IN THE CONTROL MEMBER AND PORT MEMBER, A PLURALITY OF SMALLER, INDEPENDENT PORTS IN THE CONTROL MEMBER AT POSITIONS BETWEEN THE INLET AND OUTLET PORTS, PORTS IN THE CYLINDER BLOCK COMMUNICATING WITH SAID CYLINDERS AND OPENING THROUGH A FACE OF THE CYLINDER BLOCK DIRECTED TOWARDS SAID CONTROL MEMBER, EACH OF SAID CYLINDER BLOCK PORTS REGISTERING WITH THE INLET AND OUTLET PORTS AND SAID INDEPENDENT PORTS IN THE CONTROL MEMBER IN THE COURSE OF SAID RELATIVE ROTATION, AND ADJUSTMENT MEANS FOR ADJUSTING THE ANGULAR POSITON OF THE CONTROL MEMBER ABOUT THE AXIS OF ROTATION WHEREBY THE NUMBER OF SAID INDEPENDENT PORTS WHICH IS BLANKED OFF BY THE PORT MEMBER CAN BE VARIED.
Claim 2
Dependent Claim
173 words
A HYDRAULIC POSITIVE DISPLACEMENT ROTARY MACHINE COMPRISING A CAM MEMBER, A PORT MEMBER, A CYLINDER BLOCK ROTATABLE RELATIVE TO THE CAM MEMBER AND PORT MEMBER, A PLURALITY OF CYLINDER IN THE CYLINDER BLOCK PISTONS RECIPROCABLE IN SAID CYLINDERS UNDER THE CONTROL OF THE CAM MEMBER, A CONTROL MEMBER DISPOSED BETWEEN THE CYLINDER BLOCK AND THE PORT MEMBER, REGISTERING INLET AND OUTLET PORTS IN THE CONTROL MEMBER AND PORT MEMBER, A PLURALITY OF SMALLER, INDEPENDENT PORTS IN THE CONTROL MEMBER AT POSITIONS BETWEEN THE INLET AND OUTLET PORTS, PORTS IN THE CYLINDER BLOCK COMMUNICATING WITH SAID CYLINDERS AND OPENING THROUGH A FACE OF THE CYLINDER BLOCK DIRECTED TOWARDS SAID CONTROL MEMBER, EACH OF SAID CYLINDER BLOCK PORTS REGISTERING WITH THE INLET AND OUTLET PORTS AND SAID INDEPENDENT PORTS IN THE CONTROL MEMBER IN THE COURSE OF SAID RELATIVE ROTATION, AND ADJUSTMENT MEANS FOR ADJUSTING THE ANGULAR POSITON OF THE CONTROL MEMBER ABOUT THE AXIS OF ROTATION WHEREBY THE NUMBER OF SAID INDEPENDENT PORTS WHICH IS BLANKED OFF BY THE PORT MEMBER CAN BE VARIED.
References Cited (Backward Citations)
US3073252A
Cited
US2963983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |