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. 12, 2012
Filed:
Jun. 12, 2009
James William Busch, Maineville, OH (US);
Michael John Mers-kelly, Hartford, ME (US);
James William Busch, Maineville, OH (US);
Michael John Mers-Kelly, Hartford, ME (US);
The Procter and Gamble Company, Cincinnati, OH (US);
Abstract
A system for controlling the strength of seals imparted to workpiece layers by a sealing roll and an anvil roll, the sealing roll and the anvil roll arranged on opposing sides of a conveyed web of workpiece layers, heating elements provided on at least one of the rolls, temperature sensors provided on the at least one of the rolls, and a controller in communication with the sensors and in operable communication with the heating elements. The sealing roll includes a textured sealing surface, the textured sealing surface being divided into a plurality of regions, the texture of a first of the regions being different from a texture of a second of the regions. By controlling the temperature of the respective regions, detrimental effects of anvil wear on the strength of the seal imparted to the workpiece layers may be offset, increasing the service life of rolls.