US3126707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:05
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/42; F16H61/423; F16H61/4165; F16H61/433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A HYDAULIC TRANSMISSION, A PUMP, A MOTOR, CONDUIT MEANS CONNECTING THE PUMP OUTLET TO THE MOTOR INLET, MEANS FOR VARYING THE DISPLACEMENT OF THE PUMP, MEANS FOR VARYING THE DISPLACEMENT OF THE MOTOR, SELECTIVELY OPERABLE MEANS FOR PLACING THE DISPLACEMENT VARYING MEANS OF THE PUMP IN A MAXIMUM DISPLACEMENT POSITION AND THE DISPLACEMENT VARYING MEANS OF THE MOTOR IN A MINIMUM DISPLACEMENT POSITION THEREBY TO OPERATE THE TRANSMISSION AT FULL SPEED, AND MEANS RESPONSIVE TO INCREASED LOAD ON THE TRANSMISSION AND CONTROLLING BOTH DISPLACEMENT VARYING MEANS TO FIRST INCREASE THE DISPLACEMENT OF THE MOTOR TO INCREASE THE TORQUE AND THEN, IF THE INCREASED LOAD IS NOT OVERCOME, REDUCE DISPLACEMENT OF THE PUMP.
Claim 2
Dependent Claim
113 words
IN A HYDAULIC TRANSMISSION, A PUMP, A MOTOR, CONDUIT MEANS CONNECTING THE PUMP OUTLET TO THE MOTOR INLET, MEANS FOR VARYING THE DISPLACEMENT OF THE PUMP, MEANS FOR VARYING THE DISPLACEMENT OF THE MOTOR, SELECTIVELY OPERABLE MEANS FOR PLACING THE DISPLACEMENT VARYING MEANS OF THE PUMP IN A MAXIMUM DISPLACEMENT POSITION AND THE DISPLACEMENT VARYING MEANS OF THE MOTOR IN A MINIMUM DISPLACEMENT POSITION THEREBY TO OPERATE THE TRANSMISSION AT FULL SPEED, AND MEANS RESPONSIVE TO INCREASED LOAD ON THE TRANSMISSION AND CONTROLLING BOTH DISPLACEMENT VARYING MEANS TO FIRST INCREASE THE DISPLACEMENT OF THE MOTOR TO INCREASE THE TORQUE AND THEN, IF THE INCREASED LOAD IS NOT OVERCOME, REDUCE DISPLACEMENT OF THE PUMP.
References Cited (Backward Citations)
US1407047A
Cited
GB257338A
Cited
US2516662A
Cited
US2905150A
Cited
US2896411A
Cited
US3074296A
Cited
US3003309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |