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:
Nov. 20, 2007
Filed:
Sep. 22, 2004
Applicant:
Frank Bosse, Tecklenburg, DE;
Inventor:
Frank Bosse, Tecklenburg, DE;
Assignee:
Windmoeller & Hoelscher KG, Lengerich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 47/90 (2006.01);
U.S. Cl.
CPC ...
Abstract
Equipment that lays flat films or tubular films extruded by a blown film extrusion installation has at least one roller, which guides the walls of the film or the tubular film. The lay-flat equipment has at least one device that influences the rotational speed of the roller by providing a torque that can be transferred onto the roller by a transfer device. The transfer device provides for slippage between the roller and the device that provides the torque, thereby ensuring a smooth transfer of torque and preventing damage to the film.