John Telischak - Apple Valley MN, US David Roeker - Hudson WI, US Joseph Pribyl - Eagan MN, US
Assignee:
3M Innovative Properties Company
International Classification:
B24B023/00
US Classification:
451/359000
Abstract:
An abrasive article backup plate assembly and grinder system having an abrasive article backup plate assembly is disclosed. The abrasive article backup plate assembly includes an abrasive article having an abrasive surface that includes a viewing window within the abrasive surface. A support member is provided including a first major surface which supports the abrasive article. At least a portion of the support member is made of materials sufficiently clear to collectively see through the support member and the viewing window. A method of abrading a surface using a grinder system including the abrasive article backup plate assembly is also disclosed.
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