Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nils Virving0
Date of Patent
November 18, 2008
Patent Application Number
10541478
Date Filed
December 11, 2003
Patent Primary Examiner
Patent 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.
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