Patent US3259100A successfully refreshed from Google Patents.
US3259100A
Expired / Lapsed
US
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Dual drive for outboard propulsion unit
Assignee: Kiekhaefer Corp
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Filing: 1964-07-22
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Granted: 1966-07-05
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Kiekhaefer Elmer Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:09
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/02; F16H1/20; F16H1/22; F16H1/222; B; B63; B63H; B63H23/00; B63H23/02; B63H23/04; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/19633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN AN OUTBOARD DRIVE FOR BOATS HAVING A STREAMLINED UNDERWATER PROPULSION UNIT WITH A SUBSTANTIALLY HORIZONTAL PROPELLER SHAFT EXTENDING LONGITUDINALLY THEREOF, AND A SOURCE OF POWER CARRIED BY THE BOAT; A DUAL PINION DRIVE CONNECTING SAID POWER SOURCE WITH SAID PROPELLER SHAFT AND COMPRISING A SUBSTANTIALLY VERTICALLY DISPOSED MAIN DRIVE SHAFT BETWEEN SAID POWER SOURCE AND SAID PROPELLER SHAFT, AT LEAST ONE AUXILIARY DRIVE SHAFT DISPOSED SUBSTANTIALLY PARALLEL TO SAID MAIN DRIVE SHAFT AND COUPLED THERETO AT ITS UPPER END AND TO SAID PROPELLER SHAFT AT ITS LOWER END, SAID UPPER COUPLING COMPRISING INTERMESHING SPUR GEARS HAVING A MINIMUM FREE RUNNING CLEARANCE, AND MEANS TO TAKE UP SAID CLEARANCE AND TENDING TO SUBSTANTIALLY EQUALIZE THE TORQUE TRANSMITTAL OF SAID MAIN AND AUXILIARY SHAFTS IN DRIVING THE PROPELLER UNDER LOAD.
Claim 2
Dependent Claim
129 words
IN AN OUTBOARD DRIVE FOR BOATS HAVING A STREAMLINED UNDERWATER PROPULSION UNIT WITH A SUBSTANTIALLY HORIZONTAL PROPELLER SHAFT EXTENDING LONGITUDINALLY THEREOF, AND A SOURCE OF POWER CARRIED BY THE BOAT; A DUAL PINION DRIVE CONNECTING SAID POWER SOURCE WITH SAID PROPELLER SHAFT AND COMPRISING A SUBSTANTIALLY VERTICALLY DISPOSED MAIN DRIVE SHAFT BETWEEN SAID POWER SOURCE AND SAID PROPELLER SHAFT, AT LEAST ONE AUXILIARY DRIVE SHAFT DISPOSED SUBSTANTIALLY PARALLEL TO SAID MAIN DRIVE SHAFT AND COUPLED THERETO AT ITS UPPER END AND TO SAID PROPELLER SHAFT AT ITS LOWER END, SAID UPPER COUPLING COMPRISING INTERMESHING SPUR GEARS HAVING A MINIMUM FREE RUNNING CLEARANCE, AND MEANS TO TAKE UP SAID CLEARANCE AND TENDING TO SUBSTANTIALLY EQUALIZE THE TORQUE TRANSMITTAL OF SAID MAIN AND AUXILIARY SHAFTS IN DRIVING THE PROPELLER UNDER LOAD.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |