Wrist exercise device

Details Wrist exercise device Wrist exercise device

1990-07-31

1991-09-10

Apley, Richard J.

Undertaking

272 67, 272140, 272131, 272143, A63B 21105, A63B 21045, A63B 21012

Patent

active

050467271

ABSTRACT:
A wrist exercise device includes a hollow shaft which houses a pair of compression springs. Tension disks are provided at the remote ends of the springs. The disks are moved toward and away from each other by turning a tension knob at one end of the device to increase or decrease the resistance from a pair of friction pads on each side of a handle at each end of the device. A resistance indicator is provided at one end of the device.

REFERENCES:
patent: 2668055 (1954-02-01), Sharp et al.
patent: 3666267 (1972-05-01), Mckinney
patent: 3708164 (1973-01-01), Griffin
patent: 4591151 (1986-05-01), Hensley
patent: 4695049 (1987-09-01), Ciemiega
patent: 4838542 (1989-06-01), Wilkinson

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