Patents Examined by Benjamine R. Padgett
  • Fabrication of nonsparking titanium diboride mining tools
    Patent number: 3954419
    Abstract: Titanium diboride is composited with about 11 to 13 per cent by weight of copper and about 2 to 4 per cent by weight of nickel, preferably by mixing the constituents in powdered form, heating the mixture to about 2000.degree.F, and then hot pressing at a pressure of about 3000 psi and a temperature of about 2650.degree.F. The titanium diboride-copper-nickel composite composition possesses execellent strength and non-sparking properties useful in the fabrication of mining tools and implements.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: May 4, 1976
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Lawrence P. Kaufman, Richard L. Pober