Snifter valve useful in control means for a piston in a cylinder

Details Snifter valve useful in control means for a piston in a cylinder Snifter valve useful in control means for a piston in a cylinder

1973-12-05

1976-01-20

Cohen, Irwin C.

Fluid handling

Systems

Plural noncommunicating flow paths

F16K 3112

Patent

active

039331750

ABSTRACT:
The device of this invention was developed for utilization in a pneumatic oil well pump actuator. The snifter valve performs a bleeder valve function in the control mechanism of a piston in a cylinder. The controls to which this invention is particularly suited comprise a shifting floating pistion bleeder valve in conjunction with the improved snifter valve to replace a conventional button bleeder valve, in addition the device incorporates braking components in the snifter valve constructed to arrest and cushion the piston at each end of a cyclic stroke.

REFERENCES:
patent: 2119084 (1938-05-01), McQuiston
patent: 2724407 (1955-11-01), Robinson
patent: 3042061 (1962-07-01), Dobrikin

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