Patent ID: 7354011
Filing Date: 2008-04-08
Classification: B02C,D21D

Abstract:
1. A refiner system including a first refiner element and a second refiner element, said first and second refiner elements adapted for mounting in a refiner for relative rotation in a face-to-face relationship with a predetermined gap therebetween for processing material within said predetermined gap, each of said first and second refiner elements including a refining surface, a plurality of pins extending upwardly from said refining surfaces whereby said plurality of pins on said first refining surface are disposed in intermediate spaces between said plurality of pins on said second refining surface, each of said plurality of pins on said first and second refiner surfaces including a plurality of said pins adjacent in a radial direction, each of said first and second refining surfaces further including a plurality of bars including rounded edges forming a wave-shaped surface thereon, said plurality of bars being interdispersed in an area defined by a radial line between said plurality of said pins adjacent in said radial direction.