Extended range hydraulic transmission
Abstract
Abstract A POWER TRAIN INCLUDES AN INPUT MEANS AND AN OUTPUT MEANS, THE OUTPUT MEANS BEING OPERATIVELY CONNECTED WITH A SPEED DIFFERENTIAL GEAR MEANS. A FIRST DRIVE TRANSMITTING MEANS INCLUDING HYDRAULIC TRANSMISSION MEANS IS CONNECTED BETWEEN THE INPUT MEANS AND THE GEAR MEANS. A SECOND DRIVE TRANSMITTING MEANS IS CONNECTED BETWEEN THE INPUT MEANS AND THE GEAR MEANS, AND MEANS IS PROVIDED FOR DRIVINGLY CONNECTING AND DISCONNECTING THE SECOND DRIVE TRANSMITTING MEANS. THE POWER TRAIN CAN BE CHANGED FROM A SINGLE DRIVE PATH CONDITION TO A DUEL DRIVE PATH CONDITION AND VICE VERSA WHILE MAINTAINING A CONSTANT DRIVE RATIO BETWEEN THE INPUT MEANS AND THE OUTPUT MEANS.
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Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |