Air compressor with inlet diversion valve

Details Air compressor with inlet diversion valve Air compressor with inlet diversion valve

1975-12-24

1977-11-29

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

With condition responsive control of pump fluid valve

417298, 417302, 13762527, 13762566, F04B 4900, F16B 1518

Patent

active

040603407

ABSTRACT:
An air compressor has an inlet supplied with pressurized air, and is operable in a pumping mode and in a non-pumping unloaded mode. Unloader means is provided for placing the compressor in its unloaded mode. When the compressor is placed in its unloaded mode, diversion valve means operates for blocking communication of the inlet with the pressurized air supply and establishing communication of the inlet with atmosphere.

REFERENCES:
patent: 2047489 (1936-07-01), Pfiefer
patent: 2328902 (1943-09-01), Grove
patent: 2728517 (1955-12-01), Shumaker
patent: 2766766 (1956-10-01), White
patent: 2804878 (1957-09-01), Fishwood et al.
patent: 3054552 (1962-09-01), Doubleday et al.
patent: 3057540 (1962-10-01), Schumaker
patent: 3270675 (1966-09-01), Ajam
patent: 3389720 (1968-06-01), Bradenberg
patent: 3768518 (1973-10-01), Roth

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