Scratch removal device and method

Details Scratch removal device and method Scratch removal device and method

2007-11-27

2007-11-27

Hail, III, Joseph J. (Department: 3723)

Abrading

Rigid tool

Rotary disk

C451S036000, C451S021000, C451S530000

Reexamination Certificate

active

11546172

ABSTRACT:
A polishing wheel including a lower polishing surface and defining a different color from a secondary portion of the polishing wheel, so as to indicate wear of the polishing surface. The polishing surface includes a plurality of main radial flutes extending from a central passage to an outer edge. A reduced profile for the main radial flutes is provided adjacent to the outer edge. A plurality of secondary radial flutes is provided extending from the outer edge, but not in communication with either the central passage or the main radial flutes.

REFERENCES:
patent: 3386214 (1968-06-01), Shoemaker
patent: 4037367 (1977-07-01), Kruse
patent: 4622780 (1986-11-01), Tingley
patent: 4709513 (1987-12-01), Tingley
patent: 4918872 (1990-04-01), Sato et al.
patent: 5243790 (1993-09-01), Gagne
patent: 5645469 (1997-07-01), Burke et al.
patent: 6090475 (2000-07-01), Robinson et al.
patent: 6814656 (2004-11-01), Rodriguez
patent: WO 96/29179 (1996-09-01), None

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