Glass grinding bit

Details Glass grinding bit Glass grinding bit

2006-10-24

2006-10-24

Wilson, Lee D. (Department: 3723)

Abrading

Rigid tool

Rotary cylinder

C451S043000, C451S044000

Reexamination Certificate

active

07125328

ABSTRACT:
A glass grinding bit includes a monolithic plastic body having a first end, a second end and a central longitudinal axis. A central bore formed as part of the body in alignment with the longitudinal axis for receiving a drive shaft. An outer surface is formed as part of the body in alignment with the longitudinal axis and in concentric relationship with the central bore. A grinding sleeve has an inner surface in permanent interfacial contact with the body outer surface and an abrasive outer grinding surface. A threaded bore in the body extends transversely from the body outer surface to the central bore. A set screw in the transverse bore allows the grinding bit to be secured to a drive shaft. According to construction alternatives, the grinding bit may variously include (1) compressive members on the body outer surface that engage the grinding sleeve inner surface, (2) an apertured bore-defining structure within the body, and (3) the body being formed of a transparent or translucent plastic whose color signifies a surface roughness of the grinding sleeve.

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