Method of metering a fluid using a multi-mode differential fluid displacement pump
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United States of America Patent
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Nov 22, 1994
Issued Date -
N/A
app pub date -
Apr 21, 1992
filing date -
Jun 29, 1988
priority date (Note) -
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Abstract
A measured amount of a first fluid is metered into a measured amount of a second fluid by a method where a fluid is confined within a first chamber and a plunger of predetermined volume is mechanically moved into the chamber to displace a first measured amount of fluid after which a second plunger is mechanically moved into a defined volume of the chamber to displace a second volume of fluid therefrom different from the first volume whereupon the first and second volumes can be mixed in predetermined proportions.
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