Patents by Inventor George E. Burwell

George E. Burwell 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).

  • Deburring device
    Patent number: 5056972
    Abstract: A device for deburring the inner longitudinal welding seam of longitudinally moving, seam welded conduits. The device includes an elongated frame with a trailing head on which there is mounted a cutting ring positioned to cut or deburr such seam. The cutting ring dimensions and position effects enhanced deburring. Superior spring structure and hydraulic means effect improved positioning of the device within the conduit. Also an improved dovetail connection between the head and the frame avoids breakdowns.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: October 15, 1991
    Assignee: Nelson Tool Corporation
    Inventors: George E. Burwell, Michael A. Nelson