Pumps – Motor driven – Electric or magnetic motor
Patent
1992-02-06
1993-03-30
Bertsch, Richard A.
Pumps
Motor driven
Electric or magnetic motor
4174237, 310104, F04B 1700
Patent
active
051978652
ABSTRACT:
A pump assembly includes a pump head that is coupled to a permanent magnet rotor. The rotor is enclosed in a cavity defined by a fluid-tight cup that has an open first end and a closed second end. This cavity is in fluid connection with the pump head through its open first end. Outside the cup enclosure are disposed a plurality of electrical stator windings. A housing encloses all of the foregoing elements, and may also enclose a circuit board that includes circuitry for driving the stator windings. The pump assembly thereby provided is compact, efficient, and reliable.
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Liebezeit Kurt T.
O'Hara Kevin D.
Sevrain Christophe J.
Stupak, Jr. Joseph J.
Bertsch Richard A.
Micropump Corporation
Scheuermann David W.
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