Apparatus and Method for Deforming Thermoplastics
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United States of America Patent
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Issued Date -
Apr 21, 2016
app pub date -
Oct 15, 2014
filing date -
Oct 15, 2014
priority date (Note) -
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Abstract
A method comprises resiliently deforming the object via a mold that comprises first and second mold members that are movable between open and closed positions. The first and second mold members define a parting line or gap and a mold cavity when closed. The mold cavity is shaped such that the thermoplastic object is resiliently deformed in the mold cavity when the first and second mold members are closed. Thereafter, a portion of the mold is heated in a manner such that the object partially melts while the parting line or gap of the mold remains below the melting temperature of the object (thereby eliminating flashing). The object is then allowed to cool in the mold with the first and second mold members closed such that the object at least partially takes the shape of the mold cavity when the object is in equilibrium and is released from the mold cavity.
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