Pitted mold
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United States of America Patent
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Aug 16, 2005
Grant Date -
Feb 26, 2004
app pub date -
Aug 22, 2002
filing date -
Aug 22, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A mold and a method of casting a part wherein the casting surfaces of the mold including the nooks and crannies of the mold are bounded by pitted mold surfaces with the pitted mold surfaces having surface voids therein that are sufficiently small to prevent the molten metal to enter therein; however, when the molten metal is poured in the mold having the pitted surfaces the molten metal solidifies on top of the pitted surface without entering into the pits in the mold surface, yet at the same time the molten metal flows smoothly over all the mold surfaces including the structural nooks and crannies of the mold to form a cast product that is substantially free of voids and fissures.
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