Patents by Inventor Robert Lacock Cairns

Robert Lacock Cairns 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).

  • Iron-chromium-aluminum alloys with improved high temperature properties
    Patent number: 3992161
    Abstract: A powder metallurgy product comprising iron and chromium, and/or aluminum and characterized by elongated grains that are stable at elevated temperatures.A method of producing such a product, including mechanically alloying a suitable powder charge, consolidating the mechanically alloyed powder, working the consolidated product so as to achieve therein a reduction of at least about 10%; and, then, heating the worked product to produce coarse elongated grains therein.The product produced according to the present invention exhibits good oxidation resistance and good room temperature and elevated temperature strength and ductility.
    Type: Grant
    Filed: April 3, 1974
    Date of Patent: November 16, 1976
    Assignee: The International Nickel Company, Inc.
    Inventors: Robert Lacock Cairns, John Stanwood Benjamin
  • Thermoplastic prealloyed powder
    Patent number: 3930841
    Abstract: Prealloyed powders, particularly of compositions which are difficult to work by conventional means, are subjected to forces such that strain energy is imparted thereto by virtue of which the prealloyed powders manifest low flow stress and a high degree of thermoplasticity.
    Type: Grant
    Filed: June 10, 1974
    Date of Patent: January 6, 1976
    Assignee: The International Nickel Company, Inc.
    Inventors: Timothy Earl Volin, John Stanwood Benjamin, Jay Michael Larson, Robert Lacock Cairns