Swimming fin

Details Swimming fin Swimming fin

1999-03-08

2000-12-12

Morano, S. Joseph

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

441 61, A63B 3108

Patent

active

061590649

ABSTRACT:
A swimming fin includes a blade and a foot pocket, the blade including a relatively long first blade and a short second blade. The second blade underlies a bottom surface of the first blade and has transversely opposite side edge regions longitudinally extending inside transversely opposite side edges of the first blade and an intermediate region extending between the side edge regions and having its front end curved toward the foot pocket. The swimming fin thus formed can strengthen a thrust obtained by down-kicking movement of the swimming fin to thereby facilitate the up-kicking movement of the swimming fin.

REFERENCES:
patent: D151229 (1948-10-01), Eddy
patent: 3019458 (1962-02-01), Barbieri et al.
patent: 3055025 (1962-09-01), Ferraro et al.
patent: 4627820 (1986-12-01), Penebre
patent: 4954112 (1990-09-01), Nagrini et al.
patent: 5290194 (1994-03-01), Sneddon et al.
patent: 5358439 (1994-10-01), Paolo
patent: 5522748 (1996-06-01), Cressi
patent: 5683279 (1997-11-01), Raasch et al.
patent: 5975973 (1999-11-01), Fleming

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