1982-04-19
1987-12-01
Apley, Richard J.
Undertaking
272123, 272128, A63B 2106
Patent
active
047099194
ABSTRACT:
An exercise machine adapted to selectively provide either a constant resistance or an inertial resistance in response to a force. In one embodiment, a suspended weight is interconnected by a cable suspended from a frame either to a handle or to a heavy barbell. A force applied to the handle experiences constant resistance from the weight, and a force applied to the barbell experiences inertial resistance. In another embodiment, a heavy barbell is connected to a cable suspended by a frame and may be selectively connected to a suspended weight. A force applied to the barbell when the weight is not connected experiences constant resistance from the barbell, and a force applied to the barbell when the weight is connected experiences inertial resistance.
REFERENCES:
patent: 3640527 (1972-02-01), Proctor
patent: 4149714 (1979-04-01), Lambert
patent: 4216959 (1980-08-01), Niles
patent: 4249726 (1981-02-01), Faust
patent: 4253662 (1981-03-01), Podolak
patent: 4256301 (1981-03-01), Goyette
patent: 4373717 (1983-02-01), Lambert
Apley Richard J.
Bahr Robert W.
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