Liquid metering pump

Details Liquid metering pump Liquid metering pump

1978-05-03

1980-12-02

Gluck, Richard E.

Pumps

Expansible chamber type

Multiple cyclic outlet paths

417506, 417510, F04B 700

Patent

active

042368812

ABSTRACT:
A liquid metering pump has power-operated poppet valves in its intake and return conduits. The quantity of liquid discharged is controlled by a movable cam which determines how long the liquid return conduit is open. A switch operated by a portion of a pumping diaphragm prevents excess pressure from damaging the pump.

REFERENCES:
patent: 1897179 (1933-02-01), Ricardo
patent: 1952159 (1934-03-01), Atteslander
patent: 2308974 (1943-01-01), Harper
patent: 2997956 (1961-08-01), Stewart
patent: 3829242 (1974-08-01), Duke et al.

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