Sinker casting mold
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United States of America Patent
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Jul 15, 2003
Grant Date -
N/A
app pub date -
Feb 8, 2002
filing date -
Feb 8, 2002
priority date (Note) -
Expired
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Abstract
An expandable mold for use with metals that expand during solidification with the expandable mold having sidewalls that are forcibly laterally separated to thereby expand the mold cavity sufficiently so as to free at least one portion of the cast article from an interference fit with a first portion of the mold to thereby enable removable of the cast article from an interference fit with a further portion of the mold without fracture of the cast article and for forming a smooth surface finish on the cast article.
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