Swim fin for breaststroke swimmers

Details Swim fin for breaststroke swimmers Swim fin for breaststroke swimmers

1984-10-03

1985-06-04

Blix, Trygve M.

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

A63B 3111

Patent

active

045212201

ABSTRACT:
A swim fin for use by breaststroke swimmers is described. The swim fin has a shoe-like rear compartment and a closed forward extension from said compartment. The forward extension has a relatively flat bottom surface and a curved convex upper surface, so cambered that the thickness of the extension at its inner side is substantially the thickness at the outer side.

REFERENCES:
patent: 1705738 (1929-03-01), Schwalge
patent: 2423571 (1947-07-01), Wilen
patent: 2588363 (1952-03-01), De Corlieu
patent: 2975438 (1957-03-01), Magone
patent: 3015829 (1962-01-01), Gronkowski
patent: 3987509 (1976-10-01), Patterman
patent: 4310938 (1982-01-01), Eichler

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