Retractable swim fin

Details Retractable swim fin Retractable swim fin

1990-12-31

1992-04-28

Basinger, Sherman

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

441 63, 441 64, A63B 3111

Patent

active

051083272

ABSTRACT:
Improved swimming efficiency and safety in a water environment is achieved with the use of retractable swim fins having a web-like member rotatably interconnected to a shoe-like member. A latch includes a latch element which secures the web-like member to the shoe-like member in a downward swimming position. The latch element is released by linear pressure from the other foot to permit the web-like member to rotate in response to a spring force to an upward walking position. A natural swimming kick returns and latches the web-like member to the swimming position.

REFERENCES:
patent: 2729832 (1956-01-01), Schmitz
patent: 2903719 (1959-09-01), Wozencraft
patent: 3082442 (1963-03-01), Cousteau
patent: 3171142 (1965-03-01), Auzols
patent: 3268927 (1966-08-01), Markowitz
patent: 3302223 (1967-02-01), Ciccotelli
patent: 3665535 (1972-05-01), Picken
patent: 4025977 (1977-05-01), Cronin
patent: 4209866 (1980-07-01), Loeffler
patent: 4250584 (1981-02-01), Korn
patent: 4657515 (1987-04-01), Ciccotelli
patent: 4689029 (1987-08-01), Ciccotelli
patent: 4752259 (1988-06-01), Tackett et al.

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