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. 07, 2003
Filed:
Feb. 06, 2001
Heinz Kuhlmann, Stadtbredimus, LU;
Bert Van Den Bedem, Dupont De Nemours, LU;
Dupont Teijin Films U.S. Limited Partnership, Wilmington, DE (US);
Abstract
The invention relates to the chopping of thin webs, and notably to the chopping of edges trims of thin webs. It proposes a chopping device for thin webs, comprising an input section ( ) for receiving the web to be chopped; an accelerating section ( ) for accelerating the front end of the web received from the input section. Preferably, the device also comprises at least one puncturing means or knife ( ) located between the input section and the accelerating section. The invention also relates to a process for chopping thin webs, comprising the steps of providing an incoming web and accelerating the front end of the incoming web so as to tear off said front end, e.g. by causing the web to contact a puncturing device.