Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Within pressurizing chamber
Patent
1991-06-13
1993-06-15
Simmons, David A.
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Within pressurizing chamber
264349, 366 89, 366 90, B29B 742
Patent
active
052195902
ABSTRACT:
A plasticating apparatus having a barrel and a screw rotatably disposed therein. The screw has a mixing section including a helical conveying flight to form a helical passage for transporting resinous material along the screw. The mixing section further includes two helical divider flights, each spaced from the conveying flight to divide the helical passage into three channels of varying cyclic depth in the helical direction of the channels. The portions of minimum depth of the channels define wave crests which are helically displaced from each other.
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May, 1991, Edition of PM&E.
Calland William N.
Kruder George A.
HPM Corporation
Matney, Jr. William J.
Simmons David A.
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