Air operated liquid pump
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United States of America Patent
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Jul 20, 1999
Issued Date -
N/A
app pub date -
Jul 10, 1998
filing date -
Aug 11, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An air operated liquid pump includes a pump with a reciprocating plunger driven by a piston contained in a cylinder. The plunger is connected to and reciprocates a dispensing piston that moves between two positions relative to the plunger to open and close flow through valve holes that pass through the dispensing piston.
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