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:
Aug. 19, 2008
Filed:
Dec. 16, 2003
Markku Kyytsönen, Numminen, FI;
Pekka Linnonmaa, Järvenpää, FI;
Markku Kyytsönen, Numminen, FI;
Pekka Linnonmaa, Järvenpää, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A calender includes at least two roll stacks which each have at least three rolls, and in each of which the web path of a fibrous web meanders between each roll pair of the stack. In order to produce a selectable fibrous web grade, the web is passed between each roll pair of each stack, so that at least one roll pair in at least one stack is in nip contact to form a nip that calenders the web. The web runs between each roll pair of each roll stack and, in order to produce a selectable fibrous web grade, a selectable number of rolls is in nip contact with each other in each stack to form at least one nip that calenders the fibrous web.