Patents Assigned to DeBeers Industrial Diamond Division (Propietary)
  • Patent number: 4679858
    Abstract: A cutting tool for a mining machine of the type used for cutting soft materials such as coal. The cutting tool has a holding lug 10 and a cylindrical pin 18 located in a socket in the holding lug and presenting a cutting edge or surface in the form of an abrasive compact 26. The pin 18 is secured in the socket by means of a non-metallic adhesive or soft solder and a body 38 located in a cavity formed by co-operating and aligned grooves 32, 34 formed in contacting surfaces of the pin and a side of the socket. The body 38 in the cavity serves to restrain the pin against rotational movement in the socket.
    Type: Grant
    Filed: January 29, 1985
    Date of Patent: July 14, 1987
    Assignee: DeBeers Industrial Diamond Division (Propietary)
    Inventor: Klaus Tank