Exercising device with double acting hydraulic cylinder

Details Exercising device with double acting hydraulic cylinder Exercising device with double acting hydraulic cylinder

1981-07-20

1984-05-15

Johnson, Richard J.

Undertaking

272134, 188285, 92 9, 251207, A01B 2304

Patent

active

044484127

ABSTRACT:
An exercising device comprising a frame, actuating means, and a double acting hydraulic cylinder used therewith. The hydraulic cylinder includes a container having first and second chambers and passageways for placing the chambers in fluid communication with one another. A piston is slideably mounted within the first chamber and valve means are mounted with the container for preventing fluid communication into the first chamber when the piston is moved in a first direction and for preventing fluid communication around the piston when the piston is moved in a second direction. A piston rod extends into the container for moving the piston in response to movement of the actuating means. A control means governs the fluid flow through a selected passageway from the first to the second chamber to regulate the amount of force necessary to move the actuating means during exercise of a portion of the body.

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