1988-12-02
1989-08-01
Apley, Richard J.
Undertaking
272136, 272140, A63B 2100
Patent
active
048528714
ABSTRACT:
A tension spring is attached at each end to a pair of mounting brackets attached to a portable pedestal. The spring is enclosed in a cylindrical housing and one end of the spring is attached to the mounting bracket by an eye bolt that can be adjusted to increase or decrease spring tension. A twisting turn of the housing by a human hand exerts a return force on the hand through the spring with consequent tension being exerted on hand and forearm muscles as long as the housing is continuously gripped.
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Apley Richard J.
Flaxman H.
Larson Herbert W.
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