Trolling valve safety device

Details Trolling valve safety device Trolling valve safety device

1993-06-11

1994-11-29

Swinehart, Edwin L.

Marine propulsion

Engine, motor, or transmission control means

440 86, B63H 2121

Patent

active

053685105

ABSTRACT:
A trolling valve safety device limits actuation of a boat engine throttle from its idle position during use of a trolling valve, and vice versa. The trolling valve safety device preferably includes a rotating control plate having mounts for throttle cables so that throttle actuation requires plate rotation. This rotation can be limited by a cam slider which slides under force of trolling valve cables and provides a cam member that inserts in control slots of the control plate. The cam member is positioned in a locking radial slot when the trolling valve is engaged and thereby limits engine throttling. The cam member is positioned in a releasing arcuate position when the trolling valve is disengaged and thereby permits rotation of the plate and associated engine throttling. A stop pin can also extend from the plate to selectively permit or limit rotation of the plate by alignment or disalignment with a groove in the cam slider.

REFERENCES:
patent: 2785584 (1957-03-01), Hambleton
patent: 3823801 (1974-07-01), Arnold
patent: 3938637 (1976-02-01), Murakami
patent: 4836809 (1989-06-01), Pelligrino

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