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:
May. 08, 2012
Filed:
Apr. 28, 2006
Applicant:
Olli Tuovinen, Tampere, FI;
Inventor:
Olli Tuovinen, Tampere, FI;
Assignees:
Metso Paper, Inc., , FI;
Myllykoski Oyj, , FI;
Stora Enso Oyj, , FI;
M-Real Oyj, , FI;
UPM-Kymmene Oyj, , FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for mechanical defibration of wood comprises a defibration surface for processing of wood raw material and loosening of fibers, said defibration surface comprising grinding grits fastened on a metal base surface. The grits () fastened on the metal base surface () are positioned within a determined distance from each other on the base surface, so that they form a regular defibration surface.