Patents by Inventor Richard L. Shott

Richard L. Shott 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).

  • Re-sintered boron-rich polycrystalline cubic boron nitride and method for making same
    Patent number: 4673414
    Abstract: Disclosed is a method for making re-sintered polycrystalline CBN compact which comprises placing sintered boron-rich polycrystalline CBN particles in a high temperature/high pressure apparatus and subjecting said boron-rich CBN particles to a pressure and a temperature adequate to re-sinter said particles, the temperature being below the reconversion temperature of CBN, for a time sufficient to re-sinter the polycrystalline CBN particles therein. The boron-rich polycrystalline CBN particles in the HP/HT apparatus contain no impurity which would interfere with the sintering process (CBN sintering inhibiting impurities) and no sintering aid material.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: June 16, 1987
    Assignee: General Electric Company
    Inventors: Thomas R. Lavens, Francis R. Corrigan, Richard L. Shott, Harold P. Bovenkerk