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:
Feb. 24, 2004
Filed:
Dec. 14, 2001
Applicant:
Inventors:
Reijo Pietikäinen, Järvenpää, FI;
Vesa Ijäs, Viiala, FI;
Pekka Koivukunnas, Järvenpää, FI;
Assignee:
Metso Paper, Inc., Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B30B 1/534 ; B30B 1/520 ;
U.S. Cl.
CPC ...
B30B 1/534 ; B30B 1/520 ;
Abstract
In the method for leading a web between calendar roll nips (N), a web (W) is guided between the calender roll nips (N) in a loop which runs apart from the calender rolls, inside which loop an air pocket ( ) is formed. The mass and/or beat flow in the air pocket ( ) is prevented in the cross direction of the web by means of obstacles ( ) placed in connection with the pocket.