Mixing and venting extruder

B - Operations – Transporting – 29 – C

Patent

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18/718

B29C 47/76 (2006.01) B29C 47/08 (2006.01) B29C 47/50 (2006.01)

Patent

CA 1054765

ABSTRACT An extrusion apparatus for use with thermoplastic materials has a withdrawable rotor which is mounted on a piston motivated carriage, the carriage having anti-vibration mounting members to reduce loads on the rotor. A gaseous vent chamber is operable in conjunction with a reversible extruder screw and a waste mix ejection arrangement, to prevent undesirable contamination or incompletely mixed material from the extruded product.

243391

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