Hydrofoil with trolling plate

Details Hydrofoil with trolling plate Hydrofoil with trolling plate

1995-05-08

1996-02-27

Swinehart, Edwin L.

Ships

Steering mechanism

Speed retarders

114282, B63H 2544

Patent

active

054939909

ABSTRACT:
A hydrofoil for attachment to an outdrive or outboard motor supports a trolling plate projecting rearwardly from the hydrofoil when in a raised position. The trolling plate includes a pair of arms having a lockable member therebetween slidably engageable with a latch pivotally mounted on the hydrofoil. Downward trolling plate deployment may occur upon elevation of the latch by an operator control which permits the lockable member to travel lengthwise of an elongate opening in the latch and into one of multiple catches in communication with the elongate opening. A first pair of torsion springs urge the trolling plate to a deployed position. A second set of torsion springs urge the latch toward a position securing the lockable member against movement. Multiple trolling plate positions allow maneuvering of a boat with a deployed trolling plate.

REFERENCES:
patent: 2050336 (1936-08-01), Karasinski
patent: 2256898 (1941-09-01), Ehmke
patent: 2654336 (1953-10-01), Katzung et al.
patent: 2719503 (1955-10-01), Smith
patent: 2787974 (1957-04-01), Johnson
patent: 3209716 (1965-10-01), Hartley
patent: 3965838 (1976-06-01), Uht
patent: 4048940 (1977-09-01), Smith
patent: 4549498 (1985-10-01), Meyer et al.
patent: 5005507 (1991-04-01), Dyer
patent: 5127353 (1992-07-01), Wieser

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