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:
Apr. 19, 2005
Filed:
Mar. 26, 2003
Robert Kersch, Augsburg, DE;
Wolfgang Zeller, Gersthofen, DE;
Robert Kersch, Augsburg, DE;
Wolfgang Zeller, Gersthofen, DE;
MAN Roland Druckmaschinen AG, Offenbach am Main, DE;
Abstract
A method of cross-cutting a moving web uses a cutting knife operably mounted on a knife cylinder having a circumferential distance Lwhere Lis smaller than a cut length, L. The knife cylinder for revolving in a first and a second opposite direction is powered by a drive motor in either direction. The method includes revolving the knife cylinder in a first direction, cutting the web with the cutting knife, and completing a first cut. The knife cylinder is then reversed to retard progress in the first direction and then accelerated to the speed of the moving web until starting the second cut.