Patents by Inventor Benton F. Braugh

Benton F. Braugh 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).

  • Metal to metal subsea casing hanger seal
    Patent number: 4781387
    Abstract: A seal assembly for providing reliable sealing between a subsea wellhead and a casing hanger suspended within the wellhead which provides a metal band between the top and the bottom of the seal section for strength, setting force acting against the portion of the seal outside of the metal band, collapsing of the metal band by pressure generated in the portion of the seal, and the movement of the metal band setting the seal within the seal onto the casing hanger.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: November 1, 1988
    Inventor: Benton F. Braugh