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:
Feb. 17, 2009
Filed:
May. 07, 2007
Applicant:
Jochen Hennes, Frankfurt, DE;
Inventor:
Jochen Hennes, Frankfurt, DE;
Assignee:
Kiefel Extrusion GmbH, Worms, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 7/42 (2006.01); B29C 47/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
A screw extrusion press for processing thermoplastic and not reticulating polymers comprises a conveying screw () in a cylinder (). The screw comprises a conveying zone () and a mixing zone with 10 mixing rings (). These mixing rings comprise a passage hole () that extends from the bottom () of the screw to the vicinity of the cylinder wall () where it opens out into a shear gap ().