Plastic injection molding apparatus
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United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Dec 20, 1999
filing date -
Dec 20, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
Injection molding apparatus (10) for molding a thermoplastic article (A) from a moldable thermoplastic material. The molding apparatus includes a core pin (12) around which the article is formed in a cavity that is defined by separable mold halves (14, 16). Moldable thermoplastic material is introduced into the mold cavity, coaxially of the core pin, from an injection nozzle (18) through a restricted passage or gate (20). The nozzle seats solely in a radial extension (16a) of one of the mold halves, which is received in a recess (14a) of the other mold half when the mold halves are closed with respect to one another, and the gate extends solely through the extension (16a) of the mold half (16).
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