Patents by Inventor James P. Iwinski

James P. Iwinski 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).

  • Apparatus and method for containing inert gas around molten metal stream
    Patent number: 4949885
    Abstract: A molten metal stream descends from a ladle through a nozzle and then a shroud into a molten metal bath in a tundish. Structure is provided to contain a ring of inert gas around the nozzle immediately adjacent the junction of the nozzle and the shroud and to prevent outside air from entering the shroud at the junction.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: August 21, 1990
    Assignee: Inland Steel Company
    Inventors: Ronald G. Struble, James P. Iwinski