Undertaking
Patent
1989-12-14
1991-10-22
Bahr, Robert
Undertaking
A63B 21008
Patent
active
050588877
ABSTRACT:
A hydraulic exercise apparatus includes a hydraulic pump for pumping fluid through a fluid circuit in response to movement of an exercise member along an exercise stroke in such a manner that the force required to move the exercise member is dependent upon the pressure of fluid pumped. The fluid circuit includes valve means for allowing fluid to flow through the circuit only when a fluid pressure exceeds a selected pressure. The hydraulic exercise apparatus further includes pressure selection means for determining the selected pressure in accordance with the position of the exercise member along the exercise stroke.
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