Patents by Inventor Russell S. Nibogie

Russell S. Nibogie 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).

  • Rotary rock bit with hardfacing to reduce cone erosion
    Patent number: 7343990
    Abstract: An earth-boring bit has a body with three bit legs. A cone is rotatably mounted to each of the bit legs. Each of the cones has an outer row and an inner row of teeth machined on it. Each of the teeth has a rectangular root with inner, outer and lateral boundaries. A layer of hardfacing is applied to each tooth and on an exterior portion of each of the cones surrounding the inner, outer and lateral boundaries of each of the teeth. Conical surfaces between the inner and outer rows contain at least portions of the hardfacing.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: March 18, 2008
    Assignee: Baker Hughes Incorporated
    Inventors: Rudolf C. Pessier, James L. Overstreet, Russell S. Nibogie, Robert J. Buske
  • Rotary rock bit with hardfacing to reduce cone erosion
    Publication number: 20070284151
    Abstract: An earth-boring bit has a body with three bit legs. A cone is rotatably mounted to each of the bit legs. Each of the cones has an outer row and an inner row of teeth machined on it. Each of the teeth has a rectangular root with inner, outer and lateral boundaries. A layer of hardfacing is applied to each tooth and on an exterior portion of each of the cones surrounding the inner, outer and lateral boundaries of each of the teeth. Conical surfaces between the inner and outer rows contain at least portions of the hardfacing.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: Rudolf C. Pessier, James L. Overstreet, Russell S. Nibogie, Robert J. Buske