Multistage centrifugal chopper pump
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United States of America Patent
Stats
-
Oct 10, 1995
Issued Date -
N/A
app pub date -
Oct 5, 1993
filing date -
May 26, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A centrifugal pump has an impeller with vanes including cutting edges at the intake side of the pump bowl. The intake side of the bowl is closed by an intake plate, and an external cutter has blades in close cutting relationship to raised anvil ribs on the intake plate. The intake plate has an outward opening recess including a first portion of one diameter and a second portion of a greater diameter. The external cutter has respective first and second portions closely received in the first and second recess portions, respectively. The first portion of the external cutter cooperates with the first portion of the intake plate recess, and the second portion cooperates with the second recess portion, to chop solid matter entering the pump through the intake plate.
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