Piezoelectric driven diaphragm micro-pump

Details Piezoelectric driven diaphragm micro-pump Piezoelectric driven diaphragm micro-pump

1979-12-04

1982-08-17

Croyle, Carlton R.

Pumps

Correlated pump and motor or clutch control

Pump distributor control

417322, 417389, 417478, 417505, F04B 1700

Patent

active

043447430

ABSTRACT:
A piezoelectric driven variable volume having a chamber pump with a flexible tube and a non-compressible fluid therein. Solenoid operated valves are associated with the inlet and outlet of the flexible tube. A control circuit sequences the valves and the piezoelectric drive to pump small volumes of liquid through the flexible tube by a diaphragm-type action.

REFERENCES:
patent: 1764712 (1930-06-01), Brackett et al.
patent: 3029743 (1962-04-01), Johns
patent: 3551076 (1970-12-01), Wilson
patent: 3819305 (1974-06-01), Klochemann et al.
patent: 3857382 (1974-12-01), Williams et al.
patent: 3963380 (1976-06-01), Thomas et al.
patent: 4150922 (1979-04-01), Cuenoud et al.

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