Wobble plate pump
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United States of America Patent
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Sep 7, 1993
Issued Date -
N/A
app pub date -
Jun 17, 1992
filing date -
Mar 27, 1990
priority date (Note) -
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Abstract
A pump assembly comprising a housing having a cavity therein, an inlet leading to the cavity and an outlet leading from the cavity and a wobble plate mounted for nutating movement in the cavity. The wobble plate divides the cavity into first and second pumping chambers, and during its nutating movement, liquid entering the inlet into the pumping chambers is pumped by the wobble plate through the outlet. The pump can be driven by a motor. The cavity has opposing wall sections and a resilient member is provided for resiliently urging the wobble plate toward the opposing wall section to improve the priming capability of the pump. Other features improve the priming capability of the pump along the periphery of the wobble plate.
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