Metering pump

Details Metering pump Metering pump

1975-08-18

1977-11-29

Reeves, Robert B.

Dispensing

Cutoff operated by selectively preset volume or rate of...

222226, 222288, 222333, 192 482, 417429, 417473, G01F 1108, F04B 904, F04B 1300

Patent

active

040601781

ABSTRACT:
A metering pump for dispensing liquid having a pair of bellows type positive displacement pump chambers having different displacement volumes and interconnected in parallel to common inlet and outlet passages and a pair of independently controllable drive mechanisms for selectively interconnecting said pumps with a common power source for reciprocally activating each pumping chamber for a selected number of displacement cycles.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 2244106 (1941-06-01), Granberg et al.
patent: 3299633 (1967-01-01), Cass
patent: 3382811 (1968-05-01), Chastang et al.
patent: 3401639 (1968-09-01), Swertfeger et al.

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