Abrading – Rigid tool – Rotary cylinder
Reexamination Certificate
2006-01-03
2006-01-03
Wilson, Lee D. (Department: 3723)
Abrading
Rigid tool
Rotary cylinder
C451S041000, C451S342000, C451S359000, C408S07200R, C408S103000, C408S11500B
Reexamination Certificate
active
06981911
ABSTRACT:
An abrasive drill bit and method of use on glass, ceramics, tile, stone and similar solid materials, both natural and synthetic. A circle is ground into the material using a cylindrical drill bit, which grinds a loose abrasive between the bit cylinder and the material. When the circle is complete, a punch-out piece of the material falls out, leaving a smooth hole. Alternatively, the loose abrasive is ground between a solid bit and the material to grind out a hole. In both methods, the loose abrasive is preferably mixed with water to form a slurry.
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Ojini Anthony
Wilson Lee D.
Wood Herron & Evans L.L.P.
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