Patents by Inventor Ian G. Harvey

Ian G. Harvey 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).

  • Heat treatment of rotationally symmetrical workpieces by induction heating
    Patent number: 4442332
    Abstract: In the induction heating of rotationally symmetrical workpieces, the workpieces are passed through the treatment region with magnetic flux in the region parallel to the axis of symmetry of each workpiece as it passes through the treatment region. In order to obtain uniform heating of the workpieces, flux modifying members are provided which are arranged so that the resultant distribution, across the workpiece transversely of the axis thereof of the magnetic flux density in the axial direction is substantially inversely related to the distance from the axis of rotational symmetry of the workpiece.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: April 10, 1984
    Assignee: The Electricity Council
    Inventors: William B. Jackson, Ian G. Harvey, Philip H. Warren