US3107621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure supply system
Assignee: Motors Liquidation Co
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Filing: 1960-10-17
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Granted: 1963-10-22
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Leopold T Szady
- 👤 Marvin R Marsh
- 👤 Walter K Fuelberth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:17
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/0021; F16H61/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
IN A FLUID PRESSURE SUPPLY SYSTEM, A FIRST PUMP, A DRIVE MEMBER FOR ALTERNATELY DRIVING SAID PUMP IN FORWARD AND REVERSE DIRECTIONS, RESPECTIVELY, A SUCTION PASSAGE AND A PRESSURE DELIVERY PASSAGE FOR SAID PUMP, A SECOND PUMP, A SUCTION PASSAGE AND A PRESSURE DELIVERY PASSAGE FOR SAID SECOND PUMP, A VALVE UNIT CONNECT TO BOTH OF SAID DELIVERY PASSAGE, VALVE MEANS IN SAID UNIT FOR PERMITTING FLUID FLOW FROM SAID FIRST PUMP DELIVERY PASSAGE TO SAID SECOND PUMP DELIVERY PASSAGE WHEN SAID FIRST PUMP IS DRIVEN IN A FORWARD DIRECTION, AND VALVE MEANS IN SAID UNIT FOR CONTROLLING FLUID FLOW FROM SAID SECOND PUMP DELIVERY PASASGE TO SAID FIRST PUMP DELIVERY PASSAGE WHEN SAID FIRST PUMP IS DRIVEN IN SAID REVERSE DIRECTION, SAID LAST-MENTIONED VALVE MEANS BEING RESPONSIVE TO PRESSURE DELIVERED BY SECOND PUMP TO SAID SECOND PUMP DELIVERY PASSAGE TO PERMIT FLUID FLOW FROM SAID SECOND PUMP DELIVERY PASSAGE TO SAID FIRST PUMP DELIVERY PASSAGE AND RESPONSIVE TO PRESSURE RISE IN SAID FIRST PUMP
Claim 2
Dependent Claim
165 words
IN A FLUID PRESSURE SUPPLY SYSTEM, A FIRST PUMP, A DRIVE MEMBER FOR ALTERNATELY DRIVING SAID PUMP IN FORWARD AND REVERSE DIRECTIONS, RESPECTIVELY, A SUCTION PASSAGE AND A PRESSURE DELIVERY PASSAGE FOR SAID PUMP, A SECOND PUMP, A SUCTION PASSAGE AND A PRESSURE DELIVERY PASSAGE FOR SAID SECOND PUMP, A VALVE UNIT CONNECT TO BOTH OF SAID DELIVERY PASSAGE, VALVE MEANS IN SAID UNIT FOR PERMITTING FLUID FLOW FROM SAID FIRST PUMP DELIVERY PASSAGE TO SAID SECOND PUMP DELIVERY PASSAGE WHEN SAID FIRST PUMP IS DRIVEN IN A FORWARD DIRECTION, AND VALVE MEANS IN SAID UNIT FOR CONTROLLING FLUID FLOW FROM SAID SECOND PUMP DELIVERY PASASGE TO SAID FIRST PUMP DELIVERY PASSAGE WHEN SAID FIRST PUMP IS DRIVEN IN SAID REVERSE DIRECTION, SAID LAST-MENTIONED VALVE MEANS BEING RESPONSIVE TO PRESSURE DELIVERED BY SECOND PUMP TO SAID SECOND PUMP DELIVERY PASSAGE TO PERMIT FLUID FLOW FROM SAID SECOND PUMP DELIVERY PASSAGE TO SAID FIRST PUMP DELIVERY PASSAGE AND RESPONSIVE TO PRESSURE RISE IN SAID FIRST PUMP
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |