The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1999
Filed:
Oct. 30, 1996
Dennis Albert Covert, Poughkeepsie, NY (US);
Leonard James Gardecki, Essex, VT (US);
David Clyde Linnell, Poughkeepsie, NY (US);
Brian J Stark, Wappingers Falls, NY (US);
David M Waligunda, Hopewell Junction, NY (US);
Robert Peter Westerfield, Jr, Montgomery, NY (US);
William Wayne Witmer, Milford, PA (US);
International Business Machines Corporation, Armonk, NY (US);
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.