Portable differential pressure generator
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United States of America Patent
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app pub date -
Mar 3, 2004
filing date -
May 16, 2002
priority date (Note) -
Abandoned
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Abstract
A dual range dynamic pressure differential generator for use at low pressures using a differential over a variable valve for a first stage pressure differential and the differential over a flow accelerator for a second stage pressure differential. The differential over the variable valve is useful for higher pressure differentials while the differential created over the flow accelerator is useful for a lower range pressure differential, although the two ranges may overlap.
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