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:
Nov. 18, 2008
Filed:
Dec. 11, 2003
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
Refining elements for use in a refining apparatus for refining lignocellulosic fibrous material between a pair of refining members are disclosed. The refining element is adapted to be mounted on the inwardly facing conical surface of an outer stationary refining member and includes a plurality of bars and intermediate grooves in which the bars extend along the refining gap and include a pair of side walls and an upper surface forming an acute angle with a least one of the pair of side walls.