Surfboard fin

Details Surfboard fin Surfboard fin

1980-03-31

1982-04-20

Blix, Trygve M.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Surfboard

114127, 114140, 441 79, A63C 1505

Patent

active

043251544

ABSTRACT:
A surfboard fin is disclosed which is formed of shaped plastic opposed members which are joined and sealed to form a hollow light-weight buoyant construction, which provides an external contour to reduce drag in surfboarding. The novel profiled plastic surfboard fin is readily mounted to conventional boards and replaces the present conventional fiberglass fins.

REFERENCES:
patent: 2980049 (1961-04-01), Ward et al.
patent: 3324815 (1967-06-01), Morales
patent: 3516099 (1970-06-01), Morey et al.
patent: 3564632 (1971-02-01), Bahne, Jr.
patent: 3585663 (1971-06-01), Johnson
patent: 3965514 (1976-06-01), Shafer et al.
patent: 4029037 (1977-06-01), Hogan
patent: 4044416 (1977-08-01), Brewer et al.
patent: 4209867 (1980-07-01), Abrams

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