Pivoting fin for watercraft

Details Pivoting fin for watercraft Pivoting fin for watercraft

1996-09-12

1997-09-09

Swinehart, Edwin L.

Buoys, rafts, and aquatic devices

Water skimming or walking device

Having stabilizing surface

114136, 114140, B63B 100

Patent

active

056649797

ABSTRACT:
A watercraft hull having a lower surface for normal contact with a body of water includes a fin having an inner end secured to the lower surface for extending into a body of water, a hinge intermediate the inner and outer ends for enabling an outer portion of the fin to pivot about the longitudinal axis of the watercraft for enabling increased controllability and performance of the watercraft.

REFERENCES:
patent: 731227 (1903-06-01), Royse
patent: 3516100 (1970-06-01), Ellis
patent: 3972300 (1976-08-01), Adamski
patent: 4686922 (1987-08-01), Burroughs
patent: 4923427 (1990-05-01), Roland
patent: 5273472 (1993-12-01), Skedeleski et al.

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