Unloader/check valve

Details Unloader/check valve Unloader/check valve

1981-01-19

1982-03-30

Spiegel, H. Jay

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

1375147, 417299, G05D 1103, F04B 4908

Patent

active

043219403

ABSTRACT:
An unloader/check valve for use with an air compressor comprising a one-piece valve body, a valve member slidable in the body between open and closed positions, biased toward its closed position, the valve having a bleed for unloading the compressor when the valve member is in its closed position, and a dashpot arrangement for damping pulsations of the valve member.

REFERENCES:
patent: 2041906 (1936-05-01), Czarnecki
patent: 2318963 (1943-05-01), Parker
patent: 2554390 (1951-05-01), Stevenson
patent: 3358705 (1967-12-01), Krechel
patent: 3871397 (1975-03-01), Larsen
patent: 3999568 (1976-12-01), Chapman
Control Devices Publication re "load genie", Jan. 19, 1981.

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