Hydrofoil swim fin assemblies

Details Hydrofoil swim fin assemblies Hydrofoil swim fin assemblies

1980-04-14

1982-08-03

Basinger, Sherman D.

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

A63B 3110

Patent

active

043425585

ABSTRACT:
Hydrofoil swim fin assemblies, each assembly comprising a streamlined foot housing and a separate hydrofoil blade mechanism which is pivotably connected to the foot housing so that by rotation the angle of attack of the blade is reversed between each up and each down leg stroke of the swimmer. Furthermore, the sail portion of the blade mechanism is flexed at the beginning of each stroke, so as to be convex on the top and concave on the bottom during the down-stroke and visa versa during the up-stroke. Thus, the forward propulsion of the swimmer is enhanced by hydrofoil action during both the up and the down strokes.

REFERENCES:
patent: 2979287 (1961-04-01), Ross
patent: 3078482 (1963-02-01), Crowder
patent: 3171142 (1965-03-01), Auzols
patent: 3665535 (1972-05-01), Picken

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