Patents by Inventor Lawrence P. Kaufman

Lawrence P. Kaufman 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).

  • 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