Pump with cutting impeller
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United States of America Patent
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Jun 28, 2011
Grant Date -
Apr 9, 2009
app pub date -
Nov 11, 2005
filing date -
Dec 3, 2004
priority date (Note) -
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Abstract
A pump having an axial impeller (40) with helical blades (38) for sucking liquid through an intake opening (38) formed at a bottom side of the axial impeller (40), in which the blades (38) are provided, at the bottom side of the axial impeller (40), with a first cutting edge (58) which, when the axial impeller (40) rotates, are in cutting relation with at least one second cutting edge (60) formed at the intake opening (36).
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