Patents by Inventor Richard David Mittan

Richard David Mittan 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).

  • Inserts and compacts having coated or encrusted diamond particles
    Patent number: 6102140
    Abstract: The improved insert for a ground engaging tool, with a plurality of sockets for receiving a respective insert comprises a body having first and second portions and first and second zones. The first zone may consist of tungsten carbide and metallic cobalt, with preselected dimensions adapted for press fitting within a respective socket of the ground engaging tool. The second body portion may define an earth engaging portion. The second zone may consist of encrusted diamond pellets, tungsten carbide and metallic cobalt, fused together. The first and second zones may be fused together with the first zone being substantially free of encrusted diamond pellets.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: August 15, 2000
    Assignee: Dresser Industries, Inc.
    Inventors: James Edward Boyce, Michael Steve Beaton, Richard David Mittan