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:
Jul. 19, 2011
Filed:
Mar. 23, 2010
Applicants:
Joseph V. Gregg, Ft. Wayne, IN (US);
Wesley Allen Kohler, Ossian, IN (US);
Lyle D. Berning, Monroeville, IN (US);
Inventors:
Joseph V. Gregg, Ft. Wayne, IN (US);
Wesley Allen Kohler, Ossian, IN (US);
Lyle D. Berning, Monroeville, IN (US);
Assignee:
Quadrant EPP AG, Lenzburg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Wide panels of UHMWPE having exceptional flatness and surface quality are ram extruded through a slit die equipped with a plurality of individually adjustable cooling zones proximate the panel exit slit and transverse to the machine direction, which cool the panel while the panel is restrained by a back pressure device and preferably a vertical movement restraint. The process is robust and can be run for long product campaigns.