Double-worm extruder with polygonal-disk kneader
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United States of America Patent
Stats
-
Apr 12, 1994
Grant Date -
N/A
app pub date -
Jul 10, 1992
filing date -
Jul 11, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A double worm extruder for kneading units along the worms which are rotatable in the same sense. Each kneading unit has three or more circumferentially offset polygonal disks which have sealing surfaces at diametrically opposite locations closely juxtaposed with the inner wall of the housing. These sealing disks are flanked by edges which are inclined to the axes of the worms so as to insure greater flow cross sections past the disks and thereby avoid shear peaks in the extruded material and thermal decomposition thereof.
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