Pump impeller and chopper plate for a centrifugal pump
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United States of America Patent
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Jul 25, 2006
Grant Date -
Mar 3, 2005
app pub date -
Jun 25, 2004
filing date -
Jun 27, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or 'hubless' arrangement such that processing of solids through the pump does not result in clogging of solids at or near the center of the impeller, thereby producing a dead zone. Because the configuration of the chopper pump of the present invention avoids the development of a central dead zone or clogging of solids, and provides for flow of solids and fluid through the eye of the impeller, pump efficiencies are markedly improved.
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