US3159052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Motors Liquidation Co
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Filing: 1959-02-26
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Granted: 1964-12-01
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Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 John J O'malley
- 👤 Carl E Shellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:54
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; F16H47/10; B; B60; B60W; B60W10/00; B60W10/10; B60W10/11; B60W10/115; B60W10/02; B60W10/024; B60W10/026
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
281 words
IN COMBINATION, POWER AND LOAD MEMBERS, FORWARD DRIVE AND COAST DRIVE TRAINS INTERPOSED BETWEEN THE MEMBERS, SELECTOR MEANS FOR DETERMINING THE DRIVE TRAIN TO BE EFFECTIVE, A HYDRODYNAMIC DEVICE COMMON TO BOTH TRAINS AND INCLUDING A FIRST ROTOR REVOLVABLE AT A SPEED PROPORTIONAL TO THE SPEED OF ONE OF THE MEMBERS AND A SECOND ROTOR, A SOURCE OF FLUID PRESSURE, A SUPPLY VALVE RESPONSIVE TO BOTH THE SPEED AND THE TORQUE DEMAND ON THE LOAD MEMBER FOR CAUSING FLUID PRESSURE FROM THE SOURCE TO BE DELIVERED TO THE HYDRODYNAMIC DEVICE WHEN A PREDETERMINED RELATIONSHIP BETWEEN THE SPEED OF THE LOAD MEMBER AND THE TORQUE DEMAND THEREON IS ATTAINED, A LIMIT VALVE RESPONSIVE TO THE SPEED OF THE LOAD MEMBER AND ARRANGED BETWEEN THE SUPPLY VALVE AND THE HYDRODYNAMIC DEVICE SO AS TO PREVENT FLUID PRESSURE BETWEEN THE LIMIT VALVE AND THE SUPPLY VALVE FROM FALLING BELOW A PREDETERMINED MINIMUM, BRAKE MEANS RENDERED OPERATIVE WHEN THE COAST DRIVE TRAIN IS EFFECTIVE TO OPPOSE ROTATION OF THE SECOND ROTOR SO AS TO CAUSE THE HYDRODYNAMIC DEVICE TO FUNCTION AS A BRAKE AND RESIST ROTATION OF SAID ONE OF THE MEMBERS BY THE OTHER OF THE MEMBERS, CONNECTING MEANS RENDERED OPERATIVE WHEN THE FORWARD DRIVE TRAIN IS EFFECTIVE TO DRIVE CONNECT THE SECOND ROTOR TO SAID OTHER OF THE MEMBERS SO AS TO CAUSE THE HYDRODYNAMIC DEVICE TO FUNCTION AS A CLUTCH FOR TRANSFERRING DRIVE BETWEEN THE MEMBERS AND WHEN THE COAST DRIVE TRAIN IS EFFECTIVE TO DRIVE CONNECT THE MEMBERS SO THAT WITH THE BRAKE MEANS OPERATIVE THE HYDRODYNAMIC DEVICE FUNCTIONS AS A FLUID BRAKE FOR RESISTING ROTATION OF SAID ONE OF THE MEMBERS, A LOCK-UP CLUTCH INTERPOSED BETWEEN THE FIRST AND SECOND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |