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:
Mar. 20, 2007
Filed:
Jun. 10, 2004
Petteri Vuorio, Valkeakoski, FI;
Matti Kaarineva, Lempäälä, FI;
Petteri Vuorio, Valkeakoski, FI;
Matti Kaarineva, Lempäälä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A refining surface for a refiner intended for defibrating lignocellulose-containing materials, the refiner having at least two refining surfaces arranged coaxially relative to each other, at least one of which rotates around a shaft, and between which the material to be defibrated is fed. The refining surfaces define grooves and between them ridges, at least part of the refining surface ridges being formed of at least two different ridge parts connected to each other in such a way that one ridge part is farther ahead in the rotation direction of the refining surface than the other ridge part. Further, at least in some ridge parts, the front wall in the rotation direction of the refining surface is over at least part of its length substantially inclined.