Patents by Inventor Dennis Albert Covert

Dennis Albert Covert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for removing surface irregularities from a flat workpiece
    Patent number: 5895312
    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.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: April 20, 1999
    Assignee: International Business Machines Corporation
    Inventors: Dennis Albert Covert, Leonard James Gardecki, David Clyde Linnell, Brian J. Stark, David M. Waligunda, Robert Peter Westerfield, Jr., William Wayne Witmer