Exercising device with double acting hydraulic cylinder

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

1979-02-16

1981-09-29

Reger, Duane A.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

188314, A63B 2100, F16F 918

Patent

active

042917875

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.

REFERENCES:
patent: 1307502 (1919-06-01), Knudson
patent: 2036623 (1936-04-01), Focht
patent: 2048285 (1936-07-01), Padgett
patent: 2519605 (1950-08-01), Rossman

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