Apparatus for axial adjustment of chopper pump clearances
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United States of America Patent
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-
Jan 30, 2007
Grant Date -
Mar 3, 2005
app pub date -
Jul 20, 2004
filing date -
Jul 22, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Axial adjustment apparatus is provided in a centrifugal pump to effect adjustment of the impeller relative to adjacent pump elements. Specifically preferred is adjustment apparatus in a chopper pump that provides adjustment of the impeller relative to a chopper plate to facilitate continuous efficient cutting of solids by the pump. The adjustment apparatus may also include adjustment structure for providing axial adjustment between the impeller and a plate-like member positioned adjacent the drive side of the impeller to effect adjustment of cutting tolerances in cutting elements positioned between the impeller and plate-like member. The invention further includes a seal mechanism configured and positioned to retain the seal height of the seals throughout continuous adjustment of the impeller.
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