Patents by Inventor Edward Colin Partington

Edward Colin Partington 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).

  • Machining method
    Patent number: 4098153
    Abstract: In the hot-machining of metallic workpieces localized heating of the workpiece by a plasma torch is achieved immediately preceeding a cutting tool. Pure argon gas is used as the plasma gas in the heating plasma torch, and the electrical power input to the plasma gas is kept within an operative range up to 10 kilowatts.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: July 4, 1978
    Assignee: The Products Engineering Research Association of Great Britain
    Inventors: William Thomas Clark, Edward Colin Partington