Dennis J Covert

US Patent:

58953124, Apr 20, 1999

Filed:

Oct 30, 1996

Appl. No.:

8/739769

Inventors:

Dennis Albert Covert - Poughkeepsie NY
Leonard James Gardecki - Essex VT
David Clyde Linnell - Poughkeepsie NY
Brian J. Stark - Wappingers Falls NY
David M. Waligunda - Hopewell Junction NY
Robert Peter Westerfield - Montgomery NY
William Wayne Witmer - Milford PA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B24B 4900
B24B 5100

US Classification:

451 8

Abstract:

An apparatus for removing surface irregularities from a flat workpiece includes one or more abrading assemblies through which the workpiece passes sequentially. Each abrading assembly has a lower contact assembly and an upper contact assembly. The upper contact assembly is precisely spaced above the lower contact assembly in opposing parallel relation to the lower assembly. The lower and upper contact assemblies reciprocate in opposing directions to provide abrading action to the workpiece.