Undertaking
Patent
1988-12-05
1990-04-03
Crow, Stephen R.
Undertaking
272140, A63B 2102, A63B 500
Patent
active
049134175
ABSTRACT:
A hand exercise device which includes a pair of hand grips which are interconnected by a shaft, which shaft is adapted to be axially received within a hollow bore of one of the hand grips. The shaft has a helix groove bored through the free end thereof which cooperates with a through pin lodged within one hand grip so that when axial pressure is applied to the hand grips, the interaction of the actuating through pin and the helix groove causes the hand grips to rotate in counter directions to one another to thereby compress a resistence spring to exercise the wrists, arms and upper body of the user.
REFERENCES:
patent: 2920418 (1960-01-01), Britt
patent: 2973962 (1961-03-01), Griffin
patent: 3330558 (1967-07-01), Simons
patent: 3396967 (1968-08-01), Brown
patent: 3717338 (1973-02-01), Hughes
patent: 3830493 (1974-08-01), Miller
patent: 4095789 (1978-06-01), Mueller
patent: 4591151 (1986-05-01), Hensley
patent: 4643417 (1987-02-01), Nieman
Crow Stephen R.
Hinkle James A.
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