The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2014
Filed:
Nov. 03, 2008
Christian Klee, Bad Honnef, DE;
Christian Klee, Bad Honnef, DE;
Kautex Maschinenbau GmbH, Bonn, DE;
Abstract
The invention concerns an extruder screw for a screw extruder for plasticizing and/or transporting thermoplastic materials comprising at least one extruder cylinder, a material feed means and at least one extrudate discharge at the end of the extruder cylinder, that is remote from the material feed means. The extruder screw has a screw flight, wherein the extruder screw has at least one intake region and forms at least one transport and mixing region and provided in the transport and mixing region are means for shearing the extrudate. The extruder screw according to the invention is distinguished in that provided as means for shearing the extrudate there is provided at least one shearing land which extends over more than half the length of the extruder screw, over the periphery of the extruder screw, wherein the shearing land is in the nature of a screwthread in opposite relationship to the screw flight.