Patents by Inventor Timothy W. Hurst

Timothy W. Hurst 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).

  • Method of forming diamond impregnated carbide via the in-situ conversion of dispersed graphite
    Patent number: 5128080
    Abstract: A method is shown for forming a diamond impregnated carbide containing dispersed diamond crystals, the crystals being formed via in-situ conversion of graphite to diamond. Graphite particles are blended with tungsten carbide power and a binder containing elemental powders known to be diamond catalyst. After blending, the powder is pressed into a green body of a desired shaped and sintered. After sintering, the body is loaded into a high temperature and pressure apparatus and exposed to conditions sufficient to convert the graphite to diamond.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: July 7, 1992
    Assignee: Hughes Tool Company
    Inventors: Stephen R. Jurewicz, Timothy W. Hurst