Patents by Inventor Christopher L. Hysinger

Christopher L. Hysinger 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).

  • Multiple input electrode gap controller
    Patent number: 5930284
    Abstract: A method and apparatus for controlling vacuum arc remelting (VAR) furnaces by estimation of electrode gap based on a plurality of secondary estimates derived from furnace outputs. The estimation is preferably performed by Kalman filter. Adaptive gain techniques may be employed, as well as detection of process anomalies such as glows.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: July 27, 1999
    Assignee: Sandia Corporation
    Inventors: Christopher L. Hysinger, Joseph J. Beaman, David K. Melgaard, Rodney L. Williamson