PUMPING ELEMENT DESIGN
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Sep 10, 2010
filing date -
Sep 10, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A pumping element includes a blade (20) having a first section proximate a hub and a second section proximate a tip, a cavity height distribution based on a selected incidence angle distribution and a selected blade thickness distribution based on a structural requirement. The resulting cavity height distribution matches the blade thickness at the first section and the second section and is greater than the blade thickness along the blade.
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