Apparatus for introducing injection material into a mold
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United States of America Patent
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Aug 26, 1997
Grant Date -
N/A
app pub date -
Aug 24, 1995
filing date -
Sep 2, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
By embodying a feed screw (17) for glass fiber reinforced polyester material with a hollow shaft, it is possible for the injection piston (11) for an injection unit (9) to have a compact structure so as to be passed through the feed screw (17). To process even viscous polyester compositions gently, the injection piston can be equipped with a plasticizer screw and an associated plasticizer motor.
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