Drive mechanism
Abstract
Abstract A TRANSMISSION WHICH SELECTIVELY PROVIDES MULTIPLE OUTPUT SPEEDS AS WELL AS FREE WHEELING AND A POSITIVE BRAKING ACTION FOR THE OUTPUT MEMBER. THE TRANSMISSION INCLUDES AN INPUT SHAFT DRIVEN BY A HYDRAULIC MOTOR AND THE SHAFT DRIVES AN ECCENTRIC WITHIN AN OPENING IN A FLOATING GEAR UNIT. THE GEAR UNIT INCLUDES A SMALL GEAR AND A LARGE GEAR, EACH OF WHICH MESHES WITH A GEAR RING AND BOTH GEARS HAVE A LESSER NUMBER OF TEETH THAN THE CORRESPONDING GEAR RINGS. THE GEAR UNIT IS CONNECTED TO THE OUTPUT SHAFT BY A MEMBER WHICH CONVERTS THE ECCENTRIC ROTATION OF THE GEAR UNIT TO CONCENTRIC ROTATION FOR THE OUTPUT SHAFT. EACH GEAR RING CAN BE SELECTIVELY CHANGED BETWEEN A FIXED AND A ROTATABLE CONDITION. WHEN EITHER OF THE GEAR RINGS IS A FIXED CONDITION, A SPEED REDUCTION IS PROVIDED FOR THE OUTPUT SHAFT. WHEN BOTH GEAR RINGS ARE IN A ROTATABLE CONDITION A FREE WHEELING CONDITION IS ACHIEVED IN WHICH THE OUTPUT SHAFT CAN ROTATE FREELY AND IF BOTH GEAR RINGS ARE IN A FIXED OR NONROTATABLE POSITION A POSITIVE BRAKING ACTION IS ACHIEVED.
Inventors
- 👤 Ervin W Lorence
Bibliographic Details
Claims Analysis
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |