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. 11, 2003
Filed:
Sep. 06, 2001
Applicant:
Inventors:
Mats Fredlund, Karlstad, SE;
Anders Moberg, Hammarö, SE;
Frank Peng, Karlstad, SE;
Fredrik Werner, Karlstad, SE;
Assignee:
Stora Kopparbergs Bergslags Aktiebolag (publ), Falun, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 1/100 ;
U.S. Cl.
CPC ...
D21F 1/100 ;
Abstract
Method for manufacturing paper or cardboard in one or more plies in order to achieve a paper or cardboard product with an even quality. The method comprises determining a fiber composition of a broke paper or cardboard waste broke, fractionating the broke; and conveying at least one fiber fraction obtained thereby to a given ply in the paper or cardboard. In this way the fractionating is controlled so that the fiber composition in the fiber fraction obtained corresponds to a fiber composition in the input paper pulp for the given ply.