Marine propulsion device with acute angle drive
Abstract
Abstract DISCLOSED HEREIN IS A MARINE PROPULSION DEVICE WHICH INCLUDES A DRIVE SHAFT HOUSING HAVING UPPER AND LOWER HOUSING SECTIONS. THE UPPER DRIVE SHAFT HOUSING IS ROTOTABLY SUPPORTED AFT OF THE BOAT TRANSOM BY A PAIR OF OPPOSED LATERALLY EXTENDING TRUNNIONS WHICH ARE SUPPORTED ON THE BOAT HULL AND WHICH EXTEND INTO COAXIAL APERATURES IN THE UPPER END OF THE DRIVE SHAFT HOUSING TO PROVIDE A HORIZONTAL TILT AXIS. THE DRIVE SHAFT HOUSING INCLUDES A DRIVE SHAFT AND A PROPELLER SHAFT WHICH FORM AN ACUTE ANGLE MEASURED ON THE AFTWARD SIDED OF THE DRIVE SHAFT AND THE UPPER SIDE OF THE AXIS OF THE PROPELLER SHAFT. MEANS ARE PROVIDED FOR SELECTIVELY TILTING THE DRIVE SHAFT HOUSING ABOUT THE HORIZONTAL TILT AXIS RELATIVE TO A NORMAL OPERATING POSITION WITH THE DRIVE SHAFT EXTENDING DOWNWARDLY AND FORWARDLY AND WITH THE PROPELLER SHAFT BEING GENERALLY HORIZONTAL. STEERING IS AFFORDED BY ROTATING THE LOWER HOUSING SECTION ABOUT THE DRIVE SHAFT AXIS. THE INTERIOR OF THE LOWER HOUSING SECTION IS IN COMMUNICATION WITH THE INTERIOR OF THE UPPER HOUSING SECTION TO AFFORD UNDERWATER DISCHARGE OF EXHAUST THROUGH A PASSAGE IN THE PROPELLER HUB.
Inventors
- 👤 William J Shimanckas
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 |