Extruder for continuously working and/or processing flowable...

Details Extruder for continuously working and/or processing flowable... Extruder for continuously working and/or processing flowable...

2007-10-23

2007-10-23

Cooley, Charles E. (Department: 1723)

Agitating

Rubber or heavy plastic working

With specified vent means

C366S076300, C366S080000, C366S082000, C366S085000

Reexamination Certificate

active

10503144

ABSTRACT:
An extruder has at least three parallel, co-rotating shafts disposed in a cavity therein along a circle. The shafts are equipped with screw elements closely intermeshing over their whole circumference. At least one screw element is formed as a passage screw element with recesses in the screw crest, screw core and/or screw flank. Downstream of a supply port an element is provided for inhibiting the product flow in the flight of the passage screw element. A degassing opening is located downstream and adjacent the inhibiting element.

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