1987-09-08
1988-11-29
Apley, Richard J.
Undertaking
272117, 272128, A63B 522
Patent
active
047876239
ABSTRACT:
An aerobic exercise device for simulating jump-roping in which there is provided a handle element and a tubular element rotatably coupled to an end of the handle element by a stretchable rubber member, which rubber member passes entirely through the hollow interior of the tubular member. Upon rotation of the rubber member and tubular element together by the handle gripped by a person's hand, the weight of the tubular element causes the rubber member to stretch because of centrifugal force to provide cushioning or shock absorption. A weight element is also provided about the outer circumference of the tubular element, which weight element is adjustably positionable along the tubular element via an o-ring that is snugly received in an open end of the weight element, so that the torque created during the revolving of the tubular element may be varied.
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patent: 4664373 (1987-05-01), Hait
Apley Richard J.
Gerstein Milton S.
Gubernick Franklin L.
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