Marine propulsion – Screw propeller – Having transmission
Patent
1978-04-27
1984-01-31
Basinger, Sherman
Marine propulsion
Screw propeller
Having transmission
440 79, 440 83, B63H 2308
Patent
active
044287348
ABSTRACT:
A boat drive for boats having planing hulls. The boat drive includes a single prime mover or engine that drives, as an inboard drive, a pair of marine screws or propellers that are secured to respective shafts. The engine is located rearmost in the boat proximate the transom and has coupled thereto an automatic transmission having a control provided with two or three speeds forward, neutral and reverse positions, and a lock position. The output shaft from the transmission is coupled, as by a double U-joint structure, to power transfer device including for example, an automobile differential or the like and angle drives suitable for imparting rotation to mutually spaced propeller shafts. The boat incorporating the drive includes a planing-type hull, and controls are supplied the boat for throttling the engine and for selecting the speed ranges of the transmission. High torque, moderate rpm driving of the propeller, through rapid acceleration of the engine and low-range operation of the transmission, rapidly causes the boat to plane and subsequent shifting of the automatic transmission to a higher-range ratio, while simultaneously reducing engine speed, results in a cruising condition that minimizes fuel consumption.
REFERENCES:
patent: 1701403 (1929-02-01), Coykendall
patent: 3112728 (1983-12-01), Krause
patent: 3128742 (1964-04-01), Cameron
patent: 3207118 (1965-09-01), Baldwin
patent: 3422790 (1969-01-01), Connell
patent: 3532068 (1970-10-01), Lamburn
patent: 3572281 (1971-03-01), Becker
patent: 3636909 (1972-01-01), Benson, Jr.
patent: 3765041 (1973-10-01), Morse
patent: 3901103 (1975-08-01), Hufstader
patent: 3922997 (1975-12-01), Jameson
patent: 3924557 (1975-12-01), Bloch
patent: 3962985 (1976-06-01), Noguchi et al.
Basinger Sherman
Criddle B. Deon
LandOfFree
Planing-hull type boats and power drives therein does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Planing-hull type boats and power drives therein, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planing-hull type boats and power drives therein will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2344009