MULTI-SHOT MOLDING METHOD WITH PRESSURE ACTIVATED EXPANSION LOCKS
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United States of America Patent
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Issued Date -
Jun 20, 2013
app pub date -
Dec 19, 2012
filing date -
Dec 20, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A co-molding process includes molding a body between a “common cavity” and “first shot core” die halves, co-molding a soft plastic onto the first component to form a final part using the “common cavity” die half and a “second shot core” die half. The “second shot core” die half includes shallow formations forming expansion locks along an elongated edge of the final part on a non-show concave surface, the locks having a shallow depth and extending in a direction non-parallel a die pull direction such that the locks affirmatively prevent shifting of first component during the co-molding process. Also, the locks can be made to cause the final part to remain with the “second shot core” die half when dies are opened during a final step of the co-molding process.
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