Outboard motor

Details Outboard motor Outboard motor

1991-02-25

1993-03-02

Basinger, Sherman

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440 61, 440 77, 440 89, 440900, B63H 512

Patent

active

051904888

ABSTRACT:
A outboard motor, for mounting on the transom of a boat, has an engine substantially balanced about the center line of the outboard motor, a horizontally oriented engine output shaft and is angularly tiltable about a horizontal axis forward of the point of attachment of the outboard motor to the transom during operation. The configuration enables the location of the driveshaft housing and lower unit at a point further aft of the transom to keep the marine propulsion unit's center of gravity in a more aftward position, enabling an extended length exhaust system, better control and handling of the exhaust, increased torque, and an increasing overall engine efficiency. The low profile of the marine propulsion unit coupled with its far forward pivot point requires a smaller motor well space and increased visibility in the direction aft of the boat.

REFERENCES:
patent: 1034987 (1912-08-01), Dacassou
patent: 2091247 (1937-08-01), Williams
patent: 2335597 (1943-11-01), Mathewson
patent: 2359045 (1944-09-01), Markwalder
patent: 2536894 (1951-01-01), Wanzer
patent: 3070060 (1962-12-01), Harrison
patent: 3577952 (1971-11-01), Tado
patent: 4726799 (1988-02-01), Harada et al.
patent: 4764134 (1988-08-01), Watanabe
patent: 5088945 (1991-02-01), Onoue
patent: 5088946 (1992-02-01), Nakayama

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