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:
Jul. 24, 2012
Filed:
Sep. 25, 2008
Petteri Vuorio, Valkeakoski, FI;
Dahn Lundell, New Westminister, CA;
Eric Hensley, Spokane, WA (US);
Jeff Bowie, Suwanee, GA (US);
Christer Hedlund, Katrineholm, SE;
Peter Bergqvist, Skogås, SE;
Petteri Vuorio, Valkeakoski, FI;
Dahn Lundell, New Westminister, CA;
Eric Hensley, Spokane, WA (US);
Jeff Bowie, Suwanee, GA (US);
Christer Hedlund, Katrineholm, SE;
Peter Bergqvist, Skogås, SE;
Metso Paper, Inc., , FI;
Abstract
A refiner () comprising a stator () and a rotor (). The stator () and the rotor () comprise a flat portion () and a conical portion (). The conical portion has a first end () of smaller diameter (D) and a second end () of greater diameter (D) such that the first end is directed towards the flat portion and the second end is directed away from the flat portion. The refining surface () of the conical portion of the stator comprises at least an outer zone () arranged at the second end of the conical portion and an inner zone () arranged relative to the outer zone on the side of the first end of the conical portion. A portion of the length of the blade bars () in the outer zone are arranged relative to the rotation direction (RD) of the rotor such that they have a retentive effect on the material to be refined. Also a blade segment () for a conical portion of a stator of a refiner.