Patent ID: 8585470
Filing Date: 2013-11-19
Classification: B24B,B24D

Abstract:
1. An abrasive disk assembly comprising: an abrasive disk including a backing plate having a radius, a bottom and a thickness, the backing plate including a wearing flange, a planar portion and an offset portion that locates the wearing flange and the planar portion in parallel, offset planes; a hub assembly attached within a central aperture of the planar portion; wherein the backing plate is composed of a reinforcing material having a thickness and a resin-abrasive mix, the reinforcing material being positioned in reinforcing layers along the thickness of the backing plate from the bottom to a top of the backing plate, wherein a layer of the reinforcing material extends outward to the offset portion but not to the backing plate outer diameter, and wherein the thickness of the reinforcing material is non-uniform along the radius of the backing plate.