Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Temperature control
Patent
1994-09-19
1998-05-12
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Temperature control
26421123, 366 85, 366146, 425204, 425208, 4253781, 4253791, B29C 4740, B29C 4780
Patent
active
057501580
ABSTRACT:
An apparatus for heating and blending thermoplastic material prior to delivering the material into the barrel of an extruder 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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Brydson, J. A. and Peacock, D. G., "Principles of Plastics Extrusion", 1973, Applied Science Publishers, Ltd., London, pp. 95-105.
Griff, Allan L., "Plastics Extrusion Technology", 2nd. ed., 1976, Robert E. Krieger Publishing Co., New York, pp. 10-11.
Murdock David E.
Schmitt William T.
Wissmann Siegfried R.
Cincinnati Milacron Inc.
Friskney Stephen H.
Leyson Joseph
Woo Jay H.
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