Patents by Inventor Jeffrey K. Bouche

Jeffrey K. Bouche 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).

  • Patent number: 5358289
    Abstract: The present invention pertains to an improvement in buttress-threaded tubular connections. In particular, the connection is improved by controlling the tubular member thread pitch diameter tolerance to .+-.0.0015 inch, to provide a thread bearing contact pressure which is relatively constant over the entire length of the connection. In addition, the improved connection provides a reduction in hoop stress of about 20% over known buttress-threaded tubing connections.The present invention typically includes the use of variable make-up in combination with the control of the tubular member thread pitch diameter tolerance.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: October 25, 1994
    Assignees: NKK Corporation, Marubeni Tubulars, Inc.
    Inventors: Edward O. Banker, Teruo Suzuki, Erich F. Klementich, Jeffrey K. Bouche