Molten metal pump
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United States of America Patent
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-
Nov 24, 1992
Issued Date -
N/A
app pub date -
Jul 10, 1990
filing date -
Feb 24, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An impeller for a molten metal pump having a cup-shaped body comprised of a sidewall and a closed end portion that define a cavity. A plurality of shear vanes extend radially from the outer surface of the impeller, particularly from the end portion of the impeller. The impeller also has a plurality of openings extending laterally through its sidewall, wherein the openings have center lines disposed parallel to lines extending radially from the center of the cavity. The openings may be equidistantly spaced about the periphery of the sidewall. The impeller may also be comprised of a bearing member forming a portion of the sidewall.
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