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:
Dec. 25, 2007
Filed:
Nov. 26, 2004
Timo Vuorimies, Järvenpää, FI;
Timo Vuorimies, Järvenpää, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
Vibration is prevented in a multi-nip calender () or an array of multi-nip calendars. Each calender has a lower roll (), an upper roll () and two or more intermediate rolls. A fiber web is conveyed through the closed roll nips of the calenders. The intermediate rolls () have load-relieving apparatus and the upper roll () and the lower roll () have loading apparatus, while loading apparatus are connected to the lower roll () and/or the upper roll () for loading these rolls from the outside in a direction parallel with the calender plane. The running parameters () influencing the calendering impulse of one or more selected roll nips (N) are intermittently or continuously changed, such that the overall calendering impulse () of the calender or calender array and/or the quality variables () of the fiber web remain substantially constant and/or within predetermined limits.