Buoyant apparatus propelled by a human operator

Marine propulsion – Operator powered drive for propelling means

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Details

440 26, 440100, 440 90, 416 84, B63H 1600

Patent

active

043797016

ABSTRACT:
A buoyant apparatus propelled by a human operator has a pair of side by side annular floats and a pontoon rotatably mounted at the corners of a triangular frame. A pair of platforms are each mounted on the upperside of one of the annular floats. A plurality of paddles are mounted on the undersides of the floats at circumferentially spaced locations. The rotational axes of the floats converge upwardly, and the buoyancy of the floats is such that a person can be buoyantly supported in the water by the apparatus with the outboard portions of the floats raised out of the water sufficiently to result in forward propulsion when the person rotates the adjacent inboard portions of the floats rearwardly. This rotation may be done by the person engaging and rearwardly pushing the inboard portions of the platforms with his or her feet while sitting or standing. Alternatively, the floats may be rotated through a pedal drive operated by the person in a sitting position. The pontoon extends forwardly of the floats in outrigger fashion to impart longitudinal stability. The pontoon may be turned through a steering linkage to permit the apparatus to be guided through the water.

REFERENCES:
patent: 1349891 (1920-08-01), Kuznetzoff
patent: 2488310 (1949-11-01), Mayer
patent: 2663278 (1953-12-01), Skinner
patent: 2674971 (1954-04-01), Therrien
patent: 3001601 (1961-09-01), Aghnides
patent: 3088732 (1963-05-01), Hetland
patent: 3835494 (1974-09-01), Dougherty
patent: 3996872 (1976-12-01), Pinchot
patent: 4016826 (1977-04-01), Sanders
patent: 4077351 (1978-03-01), Girona

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