Patents by Inventor Larry Biddlingmeier

Larry Biddlingmeier 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 conditioning polishing pads utilizing brazed diamond technology
    Patent number: 5842912
    Abstract: A conditioning ring having cutting elements brazed-bonded to the bottom surface of the ring and suitably adopted for conditioning a workpiece polishing pad by contact with the pad. The conditioning ring further includes a flange extending about the bottom periphery of the ring with the cutting elements being attached to the bottom surface of the flange. The flange includes cutout portions for permitting material to escape from the interior of the ring. The cutting elements are distributed substantially uniformly across the bottom surface of the flange and the elements are brazed-bonded to the flange with a braised metal alloy, creating an extremely strong bond between the cutting elements and the flange surface.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: December 1, 1998
    Assignee: Speedfam Corporation
    Inventors: Paul Holzapfel, Thomas K. Crosby, Richard J. Kruse, Larry Biddlingmeier, Jim Schlueter