Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1997-04-08
1998-09-15
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264349, 264DIG65, 425208, 425DIG39, B29C 4748
Patent
active
058075178
ABSTRACT:
An apparatus for heating and blending thermoplastic material prior to delivering the material into the barrel of an extruder. The apparatus, has an elongated housing which contains two intermeshing feed screws that are driven to rotate in the same direction. Controlled heating is provided by electric band heaters which encircle the exterior of the housing, and electric cartridge heating elements fitted into aluminum cores that are received by an axial bore in each of the feed screws.
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Murdock David E.
Schmitt William T.
Wissmann Siegfried R.
Cincinnati Milacron Inc.
Deshmukh Jay
Friskney Stephen H.
Vargot Mathieu D.
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