Method of cooling a preform in a cooling tube
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United States of America Patent
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-
Jan 5, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1991
filing date -
Oct 15, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus of cooling and solidifying a preform involves: introducing a preform in a heated state released from an injection mold into a cooling tube having a bottom opening and an upper opening through which cooling air flows from the bottom opening to the upper opening, the bottom opening being provided with a fan for cooling air, and inserting a cooling core into the preform to place the cooling core in close contact therewith, the preform being forcibly cooled from interior and exterior thereof by cooling air flowing in a turning state between the preform and the cooling tube and a coolant supplied to the cooling core.
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