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:
Jun. 09, 2015
Filed:
Mar. 16, 2010
Ville Ruola, Valkeakoski, FI;
Christer Hedlund, Katrineholm, SE;
Ville Ruola, Valkeakoski, FI;
Christer Hedlund, Katrineholm, SE;
Valmet Technologies, Inc., Espoo, FI;
Abstract
A refining surface () of a refiner for defibrating lignocellulose-containing material has a feed edge () and a discharge edge () and has a first blade groove () and a second blade groove (), with a blade bar () therebetween. A distance (D, D, D) of the bottom () of the first blade groove () and the second blade groove () from an upper surface () of the blade bar () is arranged, at least in a part, to change substantially continuously in a direction of travel (A) of the blade grooves. The distance of the bottom of the second blade groove from the upper surface of the blade bar deviates from the distance of the bottom of the first blade groove from the upper surface of the blade bar at substantially the same distance (SD) from the feed edge of the refining surface.