Patents by Inventor Henry F. Linebarger

Henry F. Linebarger 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).

  • Alloy and process for producing and casting ductile and compacted graphite cast irons
    Patent number: 4459154
    Abstract: This invention relates to a new and unique alloy composition and to the method of treating molten cast iron with such alloy to produce ductile and compacted graphite cast irons. The alloy is a predominately iron alloy having the essential elements by weight of from about 0.1 to about 10% silicon, from about 0.5 to about 4.0% magnesium, from about 0.1 to about 10.0% nickel and optionally from about 0.1 to about 2.0% cerium, and/or other rare earth elements. The alloy may comprise from about 0.1 to about 10.0% silicon, from about 0.5 to about 4.0% magnesium, from about 0.1 to about 10.0% nickel, optionally from about 0.1 to about 2.0% cerium and/or other rare earth elements, from about 0.5 to about 6.5% carbon and the balance iron. Small amounts of calcium, barium or stronium and trace elements customarily found in conventional raw materials used in producing the alloy may also be present.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: July 10, 1984
    Assignee: Elkem Metals Company
    Inventors: James E. Wells, III, Henry F. Linebarger, Thomas K. McCluhan
  • Processes for producing and casting ductile and compacted graphite cast irons
    Patent number: 4396428
    Abstract: The present invention is directed to processes and apparatus for carrying out said processes wherein molten cast iron is treated with a predominantly iron alloy having the essential elements by weight of from about 0.1 to about 10.0% silicon and about 0.5 to about 4.0% magnesium. The alloy may comprise from about 0.1 to about 10.0% silicon, about 0.5 to about 4.0% magnesium, up to about 2.0% of one or more rare earth elements such as cerium about 0.5 to about 6.5% carbon, the balance being iron. Small amounts of calcium, barium or strontium and trace elements customarily found in conventional raw material may be present in the alloy. The characteristics of the alloy make it possible to establish a ready supply of treated molten iron in the foundry in holding vessels with a selected chemical composition at a given temperature. It also makes possible semi-continuous and continuous casting of ductile and compacted graphite cast irons.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 2, 1983
    Assignee: Elkem Metals Company
    Inventor: Henry F. Linebarger
  • Method for adding unalloyed magnesium metal to molten cast iron
    Patent number: 4313758
    Abstract: Finely sized unalloyed magnesium metal is blended with finely sized ferrosilicon alloy. The blended mixture is placed in metal containers and plunged into molten cast iron.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: February 2, 1982
    Assignee: Union Carbide Corporation
    Inventors: William A. Henning, Henry F. Linebarger