B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/24 (2006.01) B29C 45/52 (2006.01)
Patent
CA 2070425
2070425 9205940 PCTABS00011 A process and apparatus for injection molding of plastic material incorporate a perforated member (100) for melt filtering and/or melt mixing during metering of plasticized material. The perforated member (100) may be of a disk form mounted to a screw plunger (3) provided within a machine body with the perforations (P) arranged around the screw plunger (3). Impurities accumulated at the perforated member (100) may be purged by rotating the screw plunger from a nozzle connected to the machine body via an annular recess (110) formed at an inner surface of the machine body or directly from the machine body per se via a radial hole formed therein, when the screw plunger is in a predetermined position preferably in the most forward position, where the recess (110) or the hole is located in the vicinity of the perforated member (100).
Goudreau Gage Dubuc
Seiki Corporation
Tsutsumi Shigeru
LandOfFree
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