Patents by Inventor Raymond L. Tune

Raymond L. Tune 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).

  • Rock bit assembly method
    Patent number: 4711143
    Abstract: In a method of assembling a roller cone type rock bit, on a body having a tool joint adjacent one end and at least one leg portion adjacent the other end, the leg portion is provided with a longitudinally outer surface which is inclined longitudinally inwardly from its radially outer extremity to its radially inner extremity; on a base for a cone assembly, an end surface is provided configured to mate with the outer surface of the leg portion of the body; a roller cone is rotatably mounted on the base distal the end surface to form a cone assembly, and the end surface of the base is mated with the outer surface of the leg portion; the base is then welded to the leg portion along the juncture of the mating surfaces to mount the cone assembly on the leg portion.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: December 8, 1987
    Assignees: NL Industries, Inc., Cummins Engine Co.
    Inventors: Jesse J. Loukanis, Will W. Mathews, Raymond L. Tune