Boat drive arrangement
Abstract
Abstract AN INBOARD-OUTBOAD DRIVE FOR A BOAT WHEREIN THE OUTBOARD LEG IS OF A GENERALLY Z CONFIGURATION, IS MOUNTED ON A HORIZONTAL TILT AXIS REARWARDLY ADHACENT TO THE TRANSOM AND INCLUDES A DOWNWARDLY AND FORWARDLY INCLINED DRIVE SHAFT COUPLED AT ITS LOWER END TO A GENREALLY HORIZONTAL PROPELLER SHAFT. THE CONNECTION BETWEEN THE DRIVE SHAFT AND THE PROPELLER SHAFT IS THROUGH GEARING HAVING A RATIO EQUAL TO SUBSTANTIALLY THE COSINE OF THE ANGLE BETWEEN THE DRIVE SHAFT AND PROPELLER SHAFT. THE LOWER PORTION OF THE OUTBOARD HOUSING IS ARRANGED TO ROTATE FOR STEERING ABOUT THE AXIS OF THE DRIVE SHAFT. HYDRAULIC STEERING MEANS, ARE PROVIDED FOR ROTATING THE LOWER HOUSING, INCLUDING A DOUBLE ACTING HYDRAULIC CYLINDER AND PISTON MEANS, THE PISTON MEANS BEING PROVIDED WITH PORTS AND CHECK VALVES WHICH OPEN AUTOMATICALLY AT EACH EXTREME OF THE STEERING MOVEMENT TO PERMIT A FLOW OF HYDRAULIC FLUID THROUGH THE PISTON MEANS TO SCAVENGE AIR FROM THE SYSTEM.
Inventors
- 👤 Karl Abdon Bergstedt
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |