Reciprocal pump with improved valve

Details Reciprocal pump with improved valve Reciprocal pump with improved valve

1981-08-04

1983-11-22

Freeh, William L.

Pumps

Inertia liquid piston

Movable confining means

417417, 417566, 251DIG3, F04F 700, F04B 1704, F04B 2104

Patent

active

044165919

ABSTRACT:
In a submersible pump of the type comprising a liquid inlet, a liquid outlet and an interconnecting valve chamber in which a valve member reciprocates to force liquid from the inlet to the outlet of the pump there is provided an improved valve member which uses a valve having an elongated body formed from a generally conical coil spring with abutting convolutions. The convolutions are opened when the valve member moves away from the pumping direction and closed when the valve member moves in the pumping direction.

REFERENCES:
patent: 1688237 (1928-10-01), Joncha
patent: 2125435 (1938-08-01), Erling
patent: 2872871 (1959-02-01), Allen
patent: 3610279 (1971-10-01), McIntosh et al.
patent: 3884447 (1975-05-01), Alexander et al.

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