Patents by Inventor Lyle J. Johnson

Lyle J. Johnson 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).

  • Lance tip for oxygen steelmaking
    Patent number: 4417721
    Abstract: An oxygen lance has an improved coolant passage construction for cooling the distal end of the tip, said construction being characterized by coolant channels radiating from a central region and successively subdividing coolant flow flow in the radially outward direction.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: November 29, 1983
    Inventors: Robert D. Pehlke, D. Roger Glass, Lyle J. Johnson, deceased, by Evelyn Johnson, administratrix
  • Method for explosive forming of tubular molds for continuous steel casting
    Patent number: 4220027
    Abstract: A method for explosively forming tubular copper molds of the type employed in continuous casting of steel billet and bloom sections.
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: September 2, 1980
    Assignee: Concast, Inc.
    Inventors: Lyle J. Johnson, Jimmy D. Mote, Jack A. Yoblin