Apparatus for underwater exercise
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 23, 1992
Grant Date -
N/A
app pub date -
Jan 18, 1990
filing date -
Jan 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Underwater exercise apparatus includes at least one paddle, which is coupled to an axle causing the paddle to rotate in response to rotation of the axle. When under water, the paddle produces resistance to the rotation of the axle. In a preferred embodiment, the paddle may be made part of a treadmill for underwater use for varying the resistance to movement of the treadmill belt. In a treadmill embodying the invention, the axle of one of the rollers supporting the belt, which roller is tightly coupled to the belt, extends beyond the side edge of the belt. Directly connected to the extending end of the axle, for rotation therewith, is a paddle. In use, movement of the belt causes rotation of the paddle through the water. The water resists the movement of the paddle which, in turn, resists movement of the belt. The amount of resistance to belt movement is a function of the speed of movement of the belt and the size of the paddle which is designed to be readily changed as desired. The paddle may include means for varying the pitch of the paddle(s). The paddle may also be used in combination with numerous other types of underwater exercise apparatus such as, for example, a bicycle type apparatus.
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