Marine propulsion – Operator powered drive for propelling means
Patent
1989-09-28
1990-10-02
Peters, Jr., Joseph F.
Marine propulsion
Operator powered drive for propelling means
114153, 440 13, B63H 1600
Patent
active
049603965
ABSTRACT:
A boat-mounted pedal-driven paddle system for maneuvering a lightweight fishing boat. When employed for movement, a paddle is vertically oriented with its blade parallel to the keel of the boat and removably mounted upon the transom by a manually adjustable C-clamp. A pair of cooperating foot pedals are permanently, pivotally mounted upon a crossbar which transverses the width of the boat and is connected between the boat sides. The foot pedals are operatively linked to the paddle system via a pair of flexible cables guided upon a multiplicity of cooperative pulleys and connected to the pedals via a pivotal cable guide donut. Paddle movement involves three basic motions. First, the paddle is rotatable a limited degree about its longitudinal axis, and the position to which it axially rotates determines blade operative pitch during propulsion. Second, the paddle swings in an arc of roughly 180 degrees, which arc lies in a plane generally parallel with and spaced apart from the boat transom to propel the boat in a direction predetermined by the previously established blade pitch. Third, in response, for example, to underwater obstacles, the paddle may be deflected in an arc occupying a plane generally perpendicular to the transom, and generally coplanar with the longitudinal axis of the boat. The paddle may thus assume a generally horizontal, inclined position well above the surface of the water and be suspended in an out-of-the way position for travel or storage.
REFERENCES:
patent: 2631559 (1953-03-01), Jones
patent: 3038435 (1962-06-01), Fairfax
patent: 3095850 (1963-07-01), Stolzer
Carver Stephen D.
Peters Jr. Joseph F.
Swinehart Edwin L.
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