Patent ID: 7137872
Filing Date: 2006-11-21
Classification: B24B,B24D

Abstract:
1. A polishing wheel comprising: a body defining a central longitudinal axis and a central passage coaxial with the longitudinal axis, the central passage having a threaded portion, the threaded portion of the central passage of the body mountable to threaded shaft of a rotating polishing tool; the body having a lower polishing surface defining a planar portion; the body having a lower portion defining the lower polishing surface; the body having an upper portion, the upper portion disposed on an opposite side of the lower portion from the lower polishing surface; the lower portion including a first material and having a first color; the upper portion including the same first material, and having a second color visually different from the first color; the lower portion including a polishing material impregnated in the first material, wherein the upper portion does not include the polishing material; the lower polishing surface including a plurality of main flutes extending from the central passage to an outer edge of the polishing surface to define a fluid flow path from the central passage to the outer edge; the lower polishing surface further including secondary flutes extending from the outer edge and terminating in an area before the central passage, wherein the secondary flutes are not in direct flow communication with the main flutes.