Patents by Inventor Irvin L. Parker

Irvin L. Parker 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).

  • On/off valve apparatus for use in conjunction with electromagnetic flow control device controlling the flow of liquid metal through an orifice
    Patent number: 5350159
    Abstract: A valve combination is provided for controlling the flow of liquid metal through an orifice. The valve combination includes an electromagnetic flow control device and an on/off valve. The on/off valve includes an electrically conductive slider plate which is positioned sufficiently close to the electromagnetic flow control device to be inductively heated by the electromagnetic field generated thereby. The on/off valve permits the flow of liquid metal to be selectively stopped and started as desired. The valve combination is suitable for use with open pour and shrouded continuous casting or vessel pouring operations.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: September 27, 1994
    Assignee: Westinghouse Electric Corporation
    Inventor: Irvin L. Parker