Grinder pump
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United States of America Patent
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Oct 22, 2013
Grant Date -
Dec 23, 2010
app pub date -
Mar 29, 2010
filing date -
Jun 23, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pump is provided including a cutter plate disposed at a pump inlet including a plurality of holes. Multiple embodiments provide that the pump includes a rotatable cutter blade disposed substantially adjacent to the cutter plate. Embodiments include those wherein the plurality of holes are angled in a direction of rotation of the cutter blade. In some embodiments, the cutter blade has at least one relief hole and at least one cutting edge. Additional embodiments include those wherein a ring extends outward from the pump inlet for channeling material toward the pump inlet in a substantially perpendicular approach with respect to the cutter plate.
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