Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency
Reexamination Certificate
2005-02-01
2005-02-01
Olson, Lars A. (Department: 3617)
Buoys, rafts, and aquatic devices
Swimming aid to increase stroke efficiency
C441S061000
Reexamination Certificate
active
06848958
ABSTRACT:
A personal floatation apparatus comprising a central body portion, adapted to float in a body of water, with a propulsion structure pivotally coupled to the body having an elongated rod member with upper and lower portions and a fin member pivotally coupled intermediate the respective portions. The upper and lower portions are inversely pivotal relative to each other, wherein when the upper portion is disposed forwardly and the lower portion is disposed rearwardly, relative to the body, and vice-versa. The fin member is adapted to extend substantially perpendicular from the body when the lower portion is moved from the forward to rearward positions, thereby encouraging forward movement of the floatation apparatus caused by water resistance acting upon the fin member. The fin member is adapted to lay substantially parallel to the body when the lower portion is moved from the rearward to the forward position, thereby encouraging continued forward movement in a gliding manner.
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Hydro Blade, Inc.
Olson Lars A.
Seyfarth Shaw LLP
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