Beverage dispenser
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United States of America Patent
Stats
-
Jan 6, 2009
Grant Date -
Jul 19, 2007
app pub date -
Feb 15, 2007
filing date -
Aug 26, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A disposable pump cartridge for use in conjunction with a pump driver characterized in the disposable pump unit containing a pair of piston pumps and inlet and outlet valves positioned at one end of each piston. The piston pump has a pair of pistons arranged for reciprocal motion and which are retained by a retainer adjacent the inlet and outlet valves during transit.
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