Patents by Inventor Tamara T. Gankevich

Tamara T. Gankevich 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).

  • Patent number: 4142869
    Abstract: The proposed compact-grained diamond material consisting of powdered diamond particles is characterized in that the diamond particles therein are coated with a titanium carbide or zirconium carbide film, which film forms a cellular structure over the entire body of the material, and are bound with copper-titanium intermetallides filling the spacing between said diamond particles.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: March 6, 1979
    Inventors: Leonid F. Vereschagin, Aik A. Semerchan, Tamara T. Gankevich, Mikhail E. Dmitriev, Vitaly P. Modenov
  • Patent number: 4138252
    Abstract: The invention relates to a compact containing crystals of cubic boron nitride and a binder containing at least one of the intermetallic compounds selected from the group consisting of Ti.sub.2 Cu, Ti, Cu, Ti.sub.2 Cu.sub.3, TiCu.sub.3, Zr.sub.2 Cu, ZrCu, Zr.sub.2 Cu.sub.3, and ZrCu.sub.3. A method for the production of this compact comprises the steps of forming a composition including crystals of cubic boron nitride and a binder containing at least one of the intermetallic compounds selected from the group consisting of Ti.sub.2 Cu, TiCu, Ti.sub.2 Cu.sub.3, TiCu.sub.3, Zr.sub.2 Cu, ZrCu, Zr.sub.2 Cu.sub.3, and ZrCu.sub.3, and subjecting the obtained composition of cubic boron nitride and the binder to a pressure within the range of 10 to 50 kilobars and a temperature within the range of 1,000.degree. C. to 1,400.degree. C. The advantage of the present invention consists in providing a simple method for the production of the compact which possesses retained strength and cutting properties.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: February 6, 1979
    Inventors: Leonid F. Vereschagin, Aik A. Semerchian, Tamara T. Gankevich, Mikhail E. Dmitriev, Vitaly P. Modenov