Undertaking
Patent
1986-11-10
1990-09-04
Apley, Richard J.
Undertaking
272 97, 272136, A63B 2104
Patent
active
049538586
ABSTRACT:
The exerciser is adapted to simulate the motions and conditions incident to making turns on a ski slope, and for perfecting body movements that are important for the safety of skiers on a snow-covered slope. The exerciser has a platform for supporting a person and a support including a frame for supporting the platform for rotation in accordance with shift of weight and movements of the person. Restraining spring is coupled between the platform and the frame. The spring is effective to yieldably resist with increasing force the increasing tendency of the platform to rotate clockwise or counter-clockwise from a neutral position relative to the frame.
REFERENCES:
patent: 3582066 (1971-06-01), Keryluk
patent: 3612519 (1971-10-01), Larson
patent: 4199137 (1980-04-01), Giguere
patent: 4200282 (1980-04-01), Agyagos
patent: 4313603 (1982-02-01), Simjian
patent: 4323231 (1982-04-01), Wilson
patent: 4396189 (1983-08-01), Jenkins
patent: 4429869 (1984-02-01), Eckstein
patent: 4607839 (1986-08-01), Knudson
Apley Richard J.
Breston Michael P.
Breston Michael P.
Flaxman H. N.
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