Impeller and wear plate

Rotary kinetic fluid motors or pumps – Including casing part selectively movable relative to fixed... – Separate liner portion

Reexamination Certificate

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Details

C415S173400, C415S174400

Reexamination Certificate

active

07037069

ABSTRACT:
In one aspect, there is provided a wear plate for use in combination with a centrifugal pump and impeller. The wear plate has a wear surface defined by a substantially flat surface, a truncated conic section, and/or a curvilinear solid of revolution formed by revolving an area bounded by a curve around a center axis of the wear plate, wherein a notch or recess is provided. The notch or recess extends in a first direction perpendicular to a predetermined direction of rotation of an impeller and a second direction crossing against a direction of rotation of the impeller.

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