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:
Nov. 16, 1999
Filed:
Apr. 29, 1997
Applicant:
Inventors:
Ari Linsuri, Muurame, FI;
Reima Kerttula, Muurame, FI;
Pekka Kivioja, Muurame, FI;
Timo Nyberg, Espoo, FI;
Assignee:
Valmet Corporation, Hensinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21G / ;
U.S. Cl.
CPC ...
100 38 ; 100153 ; 100329 ; 100330 ; 100332 ; 162206 ; 1623585 ;
Abstract
A method for calendering a paper web, including the steps of passing the paper web through a calendering nip having a profile formed from a pair of calendering rolls, wherein at least one of the pair of calendering rolls includes a soft exterior face at least in the region of the nip, regulating the profile of the calendering nip to compensate for flaws in the paper web passing through the calendering nip including varying the properties of the soft exterior face locally in a direction transverse to the direction of the passing paper web concurrently with the passing step.