Portable pumping apparatus for concurrently pumping liquid from a source container to a destination container and pumping vapor from the destination container to the source container
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United States of America Patent
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Jun 19, 2012
Grant Date -
Jun 25, 2009
app pub date -
Jul 18, 2007
filing date -
Jul 18, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A portable pumping apparatus for concurrently pumping liquid from a source container to a destination container and pumping vapor from the destination container to the source container comprises a liquid and vapor pump having a liquid inlet, a liquid outlet, a vapor inlet and a vapor outlet. There is a selectively controllable actuation mechanism for actuating the liquid and vapor pump to thereby concurrently pump liquid from the liquid and vapor pump through the liquid outlet and vapor into the liquid and vapor pump through the vapor inlet, and concurrently pump vapor from the liquid and vapor pump through the vapor outlet and liquid into the liquid and vapor pump through the liquid inlet.
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