Swimming flipper

Details Swimming flipper Swimming flipper

2008-09-25

2010-10-19

Olson, Lars A (Department: 3617)

Buoys, rafts, and aquatic devices

Swimming aid to increase stroke efficiency

Foot attached

Reexamination Certificate

active

07815477

ABSTRACT:
Swimming flipper comprising a shoe part from which two ribs extend laterally, and a fin part, characterised in that said fin part is connected at one end to said shoe part, while its other end is constrained to said ribs in the vicinity of their ends, the sides of said fin part being at least partly not constrained in any way to the said side ribs, all of which so that during the active and passive phases of the flipper movement the free part and the constrained part of the said fin bend in the opposite directions forming substantially an S shape.

REFERENCES:
patent: 3411165 (1968-11-01), Murdoch
patent: 4209866 (1980-07-01), Loeffler
patent: 4300255 (1981-11-01), Beuchat
patent: 6290561 (2001-09-01), Garofalo et al.
patent: 6918805 (2005-07-01), McCarthy

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