Torsion spring type wrist exercising device

Details Torsion spring type wrist exercising device Torsion spring type wrist exercising device

1977-03-01

1978-06-20

Browne, William R.

Undertaking

A63B 2102

Patent

active

040957896

ABSTRACT:
A torsional twist wrist exercising device includes a pair of hand grips disposed in contiguous end-to-end relation on a common central longitudinal axis. The grips are operatively interconnected with each other so as to normally maintain their contiguous relation, but permitting rotative movements thereof relative to each other about their common axis. A central longitudinally extended shaft is affixed at one end to one of the grips and a central longitudinally extended bore is formed within the other grip for coaxially receiving said shaft. At least one torsion spring is supported upon the shaft and spring retaining members are provided for detachably securing one end of the spring to the shaft and the other end of the spring to the wall defining the interior surface of the bore. A cap member is provided for maintaining the contiguous end-to-end relation of the grips during exercising use.

REFERENCES:
patent: 2714008 (1955-07-01), Urban
patent: 2973962 (1961-03-01), Griffin
patent: 3396967 (1968-08-01), Brown
patent: 3717338 (1973-02-01), Hughes

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