Air cylinder

Details Air cylinder Air cylinder

1981-02-13

1982-12-14

Maslousky, Paul E.

Expansible chamber devices

Displacement control of plural cylinders arranged in...

Having motor-operated adjustment

92108, F15B 1526

Patent

active

043632602

ABSTRACT:
An air cylinder including a piston adapted to be stopped freely in any position as desired includes an automatic restoring type air cylinder member and a hydraulic cylinder member. The piston is formed with a hydraulic cylinder chamber having fitted therein a hydraulic fixed piston of the hydraulic cylinder member so that the piston can move freely in a cylinder body. An oil chamber defined by the end of the hydraulic fixed piston and the end of the hydraulic cylinder chamber is communicated with an oil tank via an oil passage mounting a check valve that can be opened by pressing means including a pilot piston and other parts.

REFERENCES:
patent: 2922497 (1960-01-01), Porter
patent: 3420148 (1969-01-01), Doerfer
patent: 3559776 (1971-02-01), Schultze
patent: 3659684 (1972-05-01), Porter
patent: 4019426 (1977-04-01), Wosegien

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