Low cost electromagnetic fluid pump

Details Low cost electromagnetic fluid pump Low cost electromagnetic fluid pump

1982-08-02

1984-12-11

Freeh, William L.

Pumps

Motor driven

Electric or magnetic motor

417566, 417550, 318130, F04B 1704

Patent

active

044875568

ABSTRACT:
A low cost electromagnetic fluid pump having molded structural plastic housing components, a biased reciprocating hollow piston, and a pair of plastic flapper valves providing for a unidirectional fluid flow is disclosed. An integrated circuit timer periodically energizes a solenoid coil producing an oscillating magnetic field reciprocating the piston.

REFERENCES:
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patent: 3179055 (1965-04-01), Kalert, Jr.
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patent: 3601509 (1971-08-01), Kreitchman
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patent: 4102610 (1978-07-01), Taboada et al.
patent: 4122378 (1978-10-01), Brown
patent: 4212601 (1980-07-01), Ina
patent: 4306843 (1981-12-01), Arai
patent: 4363980 (1982-12-01), Petersen
patent: 4389169 (1983-06-01), De Dionigi

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