Control device for air cylinder unit

Details Control device for air cylinder unit Control device for air cylinder unit

1974-07-26

1976-04-13

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Pilot valve

91 51, 13762563, 13762564, 13762566, F15B 1115, F15B 13043, F16K 1106

Patent

active

039496465

ABSTRACT:
There is disclosed a control device for an air cylinder unit which functions to automatically orient the unit to retract if all air is shut off to the unit during the extension operation thereof. The device includes a control piston having a first passage connecting supply pressure to only one side thereof and a second restricted passage intercommunicating opposite sides thereof.

REFERENCES:
patent: 2641229 (1953-06-01), Bellows
patent: 2846981 (1958-08-01), Kambic
patent: 2847879 (1958-08-01), Olson et al.
patent: 3318332 (1967-05-01), Lansky et al.
patent: 3461909 (1969-08-01), Vohringer

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