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. 05, 2008
Filed:
Nov. 15, 2002
Applicants:
Matti Lares, Tuusula, FI;
Mikko Tani, Appleton, WI (US);
Inventors:
Matti Lares, Tuusula, FI;
Mikko Tani, Appleton, WI (US);
Assignee:
Metso Paper, Inc., Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21G 1/00 (2006.01); B29C 43/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for pre-calendering a board web is provided and comprises passing the board web in a pre-calendering process through at least one hard nip, formed by a metal roll and a counter roll, and through at least one long nip, formed by a thermo roll and a long-nip roll or a long-nip belt assembly. The surface of the board web is moistened with water prior to the board web passing through the at least one hard nip.