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:
May. 14, 1991
Filed:
Aug. 21, 1989
Heinz K Nowisch, Fulton, NY (US);
Richard S Tetro, Fulton, NY (US);
The Black Clawson Company, Middletown, OH (US);
Abstract
In a winder for continuously winding a web material into rolls on successive cores, roll changing apparatus for cutting and transferring the web material from a full roll to an empty core includes two sets of water jet nozzles mounted for reciprocating movement in opposite directions lengthwise of the core to which the web is to be transferred. During the momentary interval of roll changing, the oppositely moving jets cut the web along a generally saw tooth pattern, and at the same time, the water which cuts the web also wets its cut leading end and the adjacent surface of the core, thereby causing adhesion of the end of the web to the core for a sufficient interval for this end of the web to be covered by the next wrap on the core.