Patents by Inventor Wyllys King Ingersoll, III

Wyllys King Ingersoll, III 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).

  • Patent number: 9439247
    Abstract: A method and system automatically determines when an electrode add event occurs in an electric arc furnace having a plurality of electrode columns, each carried by an electrode positioning system. Data is received correlating to the harmonic distortion of the electrical current output to the plurality of electrode columns. Data is also received correlating to control pressures in the electrode positioning systems. Steady state control pressure data is captured when the harmonic distortion data indicates a steady state condition. An electrode add event is thereafter determined when a pressure spike is identified in the steady state control pressure data.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: September 6, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventor: Wyllys King Ingersoll, III
  • Patent number: D749621
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: February 16, 2016
    Assignee: GrafTech International Holdings, Inc.
    Inventors: Ronald E. Gerhan, Wyllys King Ingersoll, III, Frank A. Messineo, Jr.
  • Patent number: D770511
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 1, 2016
    Assignee: GrafTech International Holdings Inc.
    Inventors: Ronald E. Gerhan, Wyllys King Ingersoll, III, Frank A. Messineo, Jr.