Method of producing a pattern mold
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United States of America Patent
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-
Jan 30, 2001
Grant Date -
N/A
app pub date -
Dec 7, 1998
filing date -
Jun 12, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An injection mold for forming a pattern for use in investment casting having mold sections carrying two pattern-forming surfaces and a translatable third pattern-forming element movable on a mold section. The mold also includes an inner core. Parting lines are located at inconspicuous locations by sizing and shaping the mold sections. The method of use of the injection mold includes employing an arrangement for facilitating lower mold section and for raising the inner core to facilitate its removal.
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