Pump
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United States of America Patent
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-
Sep 27, 1988
Grant Date -
N/A
app pub date -
Oct 25, 1983
filing date -
Oct 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved diaphragm pump in which the diaphragm has a majority of its area available for flexure and deformation thereby allowing for a variable stroke length on the diaphragm pump and decreased wear of the diaphragm in operation. Additionally such a flexible diaphragm is additionally deformed by the pressure of the fluid in the pumping chamber thereby forming a 'piston' of the diaphragm as it is deformed over the deforming piston of the pump.
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