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. 29, 2013
Filed:
Aug. 15, 2007
Applicants:
Markus Joppe, Ibbenbüren, DE;
Werner Hülsmeier, Lengerich, DE;
Inventors:
Markus Joppe, Ibbenbüren, DE;
Werner Hülsmeier, Lengerich, DE;
Assignee:
Windmoeller & Hoelscher KG, Lengerich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/20 (2006.01); B29C 47/88 (2006.01);
U.S. Cl.
CPC ...
Abstract
A blown film extrusion device includes a blow head and an outer cooling ring mountable on a top of the blow head. The cooling ring has an annular support surface on its bottom and can be centered relative to the blow head via centering devices. The centering devices are formed by at least three radially arranged linear guides, each of which has a radially extending recess and at least one guide element engaging in the recess.