Pump with expandable chamber

Details Pump with expandable chamber Pump with expandable chamber

1979-09-17

1981-12-15

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417542, 417560, 417566, F04B 4302, F04B 4504

Patent

active

043057020

ABSTRACT:
A pump for pumping an incompressible liquid comprising a housing having an inlet and an outlet, a pumping chamber in said housing, and a positive displacement pumping member mounted for movement in the pumping chamber. The housing has an inlet passage which leads from the inlet to the pumping chamber and an outlet passage leading from the pumping chamber to the outlet. Inlet and outlet check valves are provided in the inlet and outlet passages, respectively. A resiliently expandable chamber opens into the inlet passage upstream of the inlet check valve to receive the liquid and to be resiliently expanded by it.

REFERENCES:
patent: 2929333 (1960-03-01), Harry
patent: 3205829 (1965-09-01), Andersen et al.
patent: 3496872 (1970-02-01), Riester et al.
patent: 3572980 (1971-03-01), Hollyday
patent: 3606597 (1971-09-01), Russell
patent: 3941519 (1976-03-01), McCauley

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