Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Patent
1995-10-30
1997-01-14
Basinger, Sherman
Buoys, rafts, and aquatic devices
Swimming aid to increase stroke efficiency
Foot attached
441 63, A63B 3111
Patent
active
055933335
ABSTRACT:
A fin assembly is disclosed for attachment to a boot of a float tube user, the boot having a sole, a toe and a heel. The assembly includes a base member having a mechanism for attachment to a boot. The base member has a front portion for attachment proximate the toe of the boot and a rear portion for attachment proximate the heel of the boot. A fin member is provided with front and rear ends. A mechanism is provided for pivotally mounting the front end of the fin member to the front portion of the base member. The fin member is pivotally moveable between a first operational position wherein the fin member rear end projects below the base member to provide substantial resistance to flow of water as the fin member is moved in a rearward direction relative to the user for propelling the user forwardly in the water, and a second operational position wherein the fin member rear end is aligned proximate the base member rear portion to provide substantially reduced resistance to flow of water as the fin member is moved in a forward direction relative to the user. Finally, a mechanism is provided for limiting the maximum angle between the fin member in its first operational position and the plane of the base member.
REFERENCES:
patent: 1007867 (1911-11-01), Halvorsen
patent: 1326471 (1919-12-01), Becherer
patent: 2094532 (1937-09-01), Glad
patent: 2343965 (1944-03-01), Fisch
patent: 4664639 (1987-05-01), Schneider
patent: 5338275 (1994-08-01), Chek
Basinger Sherman
Isaac John L.
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