Mold for making a window frame
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United States of America Patent
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-
Feb 17, 2004
Issued Date -
N/A
app pub date -
Dec 23, 1999
filing date -
Aug 18, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for forming a frame including a rigid thermoplastic portion and a resilient portion defining a lip seal. In particular, a core/cavity mold assembly is provided, wherein the rigid thermoplastic portion is formed, by opening the mold assembly while maintaining the rigid thermoplastic portion in the core, placing the core in line with a second cavity configured and sized to form the lip seal and molding the lip seal directly onto the rigid thermoplastic portion. The mold cavity is provided with movable internal and external stripper rings that allow the resilient portion to be removed from the cavity.
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