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:
Apr. 08, 2008
Filed:
Jul. 31, 2002
Applicant:
Nils Virving, Hässelby, SE;
Inventor:
Nils Virving, Hässelby, SE;
Assignee:
Metso Paper, Inc., , FI;
Primary Examiner:
Int. Cl.
CPC ...
B02C 7/04 (2006.01); B02C 7/06 (2006.01); B02C 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
A refiner system is disclosed including a first refiner element and a second refiner element adapted for mounting a refiner for relative rotation with a refining gap between them for processing lignocellulosic material, each of the first and second refiner elements including a refining surface, pins extending upwardly from the refining surfaces whereby the pins on the first refiner surface are disposed in intermediate spaces between the pins on the second refiner surface, each of the first and second refining surfaces further including bars including rounded edges forming a wave-shaped surface thereon.