Patents by Inventor Lorne E. Murphy

Lorne E. Murphy 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).

  • Desulfurizing iron
    Patent number: 4915732
    Abstract: The efficiency of the use of desulfurizing agents, particularly calcium carbide- and calcium oxide-based desulfurizing agents, to decrease the sulfur content of molten iron is improved by adding a pulse of magnesium, aluminum or calcium metal at a critical concentration of sulfur and oxygen in the molten metal. The improved efficiency enables less desulfurization agent to be employed for the same residual sulfur concentration, with consequently decreased reaction time and costs.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: April 10, 1990
    Assignee: Stelco Inc.
    Inventors: Ian A. Cameron, Lorne E. Murphy