Swim fin

Details Swim fin Swim fin

1993-08-16

1994-11-08

Basinger, Sherman

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

A63B 3108, A63B 3111

Patent

active

053622685

ABSTRACT:
The swim fins (10) each include a molded center guide (14) and a shoe portion (12). A first wing (16) is pivotally attached to one side of the center guide (14) by a hinge member (18). A second wing (20) is pivotally attached to the other side of the center guide (14) by a hinge member (22). The hinge members (18, 22) have a flexible web (50) and flanges (52, 54). One of the flanges (54) of the hinge (18) is inserted into a hinge bead retainer slot (24) in the center guide (14) and the other flange (52) is inserted into a hinge bead retainer slot (38) in the wing (16). One of the flanges (52) of the hinge (22) is inserted into a hinge bead retainer slot (26) in the center guide (14) and the other flange (54) is inserted into a hinge bead retainer slot (40) in the wing (20). Stop surfaces (42, 44, 46, 48) on the wings (16, 20) cooperate with stop surfaces (30, 32, 34, 36) on the center guide (14) to limit pivotal movement of the wings relative to the center guide.

REFERENCES:
patent: 1061264 (1913-05-01), Bys
patent: 3441975 (1969-05-01), Shepherd
patent: 4310938 (1982-01-01), Eichler
patent: 4828132 (1989-05-01), Francis, Jr. et al.
patent: 4954112 (1990-09-01), Negrini

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