Patents by Inventor Norman E. Howard

Norman E. Howard 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).

  • Electrolytic removal of magnesium from molten aluminum
    Patent number: 5294306
    Abstract: Method and apparatus for controlling the temperature of a molten salt, electrolytic demagging cell wherein an operating condition of the cell (e.g., current, temperature, etc.) is measured and a cathode immersed in the cell's electrolyte is moved to and fro the aluminum melt in the cell in response to the measured condition to vary the heat input to the cell.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: March 15, 1994
    Assignee: General Motors Corporation
    Inventors: Norman E. Howard, Basant L. Tiwari