Dynamic mixer screw tip

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion

Reexamination Certificate

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Details

C366S081000, C366S085000, C366S090000, C425S204000, C425S208000, C425S209000

Reexamination Certificate

active

06958128

ABSTRACT:
The present invention includes a screw tip for an extruder screw for effecting mixing in an extruder. The screw tip has a substantially conical outside surface and at least one discontinuous fin. The at least one fin protrudes from the outside surface of the screw tip.

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Rockwell Automation, Extrusion Processes, Publication D-7741, Mar. 2000.

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