Buoys – rafts – and aquatic devices – Water skimming or walking device – Having stabilizing surface
Patent
1993-09-13
1994-10-18
Avila, Stephen P.
Buoys, rafts, and aquatic devices
Water skimming or walking device
Having stabilizing surface
441 71, B63B 3500
Patent
active
053563247
ABSTRACT:
A long and slender box shaped fin holder, that provides a pinned connection between the fin and the holder box. The pinned connection is located within the box itself, so as to allow rotational capabilities, while also offering lateral stability to the fin from the sides of the holder box. The rotational freedom of the fin is regulated by a spring type device attached to the leading edge of the fin and at the same time, to the forward wall of the holder box. The holder box is also equipped with a latch type device to facilitate locking the fin in a fully retracted position, which primarily conceals the fin within the holder box. This holder box is embedded within the top and the bottom surfaces of a typical surfboard, kneeboard, or windboard, typically near the rear of the board. This holder box is also equipped, within the box its self, a wedged shaped member designed to collect moving water from beneath the board, and discharging that water out the top surface of the holder box and therefore the board, as a visual measurement of speed and maneuvers.
REFERENCES:
patent: 3066327 (1962-12-01), Durfey
patent: 3087173 (1963-04-01), Meyer
patent: 3103673 (1963-09-01), Martin
patent: 3516100 (1970-06-01), Ellis
patent: 3564632 (1971-02-01), Bahne
patent: 3585663 (1971-06-01), Johnson
patent: 3685068 (1972-08-01), Reed
patent: 3756182 (1973-09-01), Hackett
patent: 4699596 (1987-10-01), Klinker et al.
patent: 5133681 (1992-07-01), Lobe
patent: 5147235 (1992-09-01), Bamburak et al.
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