Patents Assigned to Kazakhsky Politekhnichesky Institute Imeni V.I. Lenina
  • Diamond crown bit
    Patent number: 4681174
    Abstract: A diamond-impregnated layer of the drilling bit matrix is shaped as a parallelepiped having its front and rear faces inclined. An insert is shaped as a triangular prism, one of whose side faces is rigidly coupled to a weld-on layer, also for the diamond-impregnated layer, and whose face, is rigidly coupled to the inclined rear face of the diamond-impregnated layer.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: July 21, 1987
    Assignee: Kazakhsky Politekhnichesky Institute Imeni V.I. Lenina
    Inventors: Marat T. Aubakirov, Esengali L. Limanov, Askar K. Syzdykov, Ravil S. Abdrazakov, Murat G. Tleuov, Vladimir S. Khazhuer, Ruslan D. Buzdov, Vladislav K. Khashirov