Pump having freely movable member
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United States of America Patent
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Oct 16, 2018
Grant Date -
Feb 1, 2018
app pub date -
Apr 20, 2015
filing date -
Apr 20, 2015
priority date (Note) -
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Abstract
A pump includes a main chamber and a pair of valves on opposite ends of the main chamber. The respective valves each contain a freely movable member to selectively open and close each respective valve, wherein the freely movable member is formed from at least some of the same material used to form a chamber portion of the respective valves. A force applicator is coupled relative to the main chamber to alternately induce a suction action and an expulsion action.
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