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:
Jun. 10, 2025
Filed:
Nov. 18, 2021
Valmet Ab, Sundsvall, SE;
Fabrizio Bartolini, Lucca, IT;
Marco Capitani, Lucca, IT;
VALMET AB, Sundsvall, SE;
Abstract
A device and method of winding a web (W) of tissue paper or a non-woven material onto spools () to form a succession of web reels () on the spools () wherein the force in the winding nip () is measured and, as the diameter of the web reel () grows, the spool () on which the web reel () is wound is moved during winding along a horizontal plane such that, in the horizontal direction, the distance between the first supporting drum () and the spool () increases, and the second supporting drum () is moved vertically downwards to match the increasing size of the web reel () while maintaining contact with the web reel () to such an extent that a nip force between the web reel () and the second supporting drum () is maintained, and the first supporting drum () is moved vertically downwards as the diameter of the web reel () grows and moved to such an extent that the measured nip force in the winding nip () remains substantially at a set value or within the range of a predetermined upper and a predetermined lower value.