Electric diaphragm pump with valve holding structure

Details Electric diaphragm pump with valve holding structure Electric diaphragm pump with valve holding structure

1988-04-06

1989-05-23

Smith, Leonard E.

Pumps

Motor driven

Electric or magnetic motor

417566, F04B 4314, F04B 3910

Patent

active

048325821

ABSTRACT:
A pump has a solenoid with an armature directly connected to an elastomeric diaphragm. Upon flow of half wave rectified ac current in the solenoid, the armature oscillates the diaphragm. A valve holder has duck-bill type inlet and outlet valves received therein. The valve holder is retained between a valve body and an armature guide member by fastening means which simultaneously effect sealing of the diaphragm rim and the rims of the duck-bill valves. The armature has portions thereof directly engaging a detent recess formed in a central buffer portion of the diaphragm.

REFERENCES:
patent: 2898860 (1959-08-01), Grober
patent: 3127846 (1964-04-01), Kerns
patent: 3701614 (1971-05-01), Guidicelli
patent: 3981632 (1976-09-01), LeFebre
patent: 4370107 (1983-01-01), Landis et al.
patent: 4536139 (1985-08-01), Greco et al.
patent: 4608000 (1986-08-01), Tominaga

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