Molten metal pump particle passage system
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United States of America Patent
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-
Dec 5, 2006
Grant Date -
Aug 7, 2003
app pub date -
Oct 26, 2001
filing date -
Oct 26, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A molten metal pump system which includes a particle relief passageway between the vanes on the impeller and the pump base, the particle relief passageway being a predetermined size to allow particles of a predetermined size to pass between the plurality of vanes and the interior walls of the impeller aperture of the pump base. Part or all of the particle relief passageway may, but need not, be as a result of a shoulder on the radially outward end of the plurality of vanes in the inlet side of the impeller.
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