Pumps – Motor driven – Electric or magnetic motor
Patent
1988-06-06
1989-10-17
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
310 24, F04B 4314
Patent
active
048742996
ABSTRACT:
A precision pump for moving small volumes of fluid includes an electromagnet in which is reciprocally mounted an armature carrying a diaphragm on one end such that upon reciprocal movement of the armature an alternating high and low pressure can be created in a pumping chamber to move fluid through the pump. In one embodiment of the pump, the electromagnet drives the armature in one direction and a spring returns the armature to effect the reciprocating movement while in a second embodiment a pair of electromagnets are axially aligned and cooperate with a pair of magnets on the armature to alternately move the armature in a linear reciprocating motion as current is alternately applied to the electromagnets.
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Beard Steven A.
Lopez Benjamin L.
Phillips Kirby
Croyle Carlton R.
Life Loc, Inc.
Polumbus Gary M.
Scheuermann D.
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