Patents by Inventor Claud C. Barrington

Claud C. Barrington 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).

  • Uni-directional/bi-directional gate valve
    Patent number: 4711262
    Abstract: A gate valve includes a pressure relief port located on the gate valve. When the gate is positioned such that the port communicates with one of the two flow passages and the valve body interior, uni-directional flow is permitted from the other of the flow passages. Flow is blocked bi-directionally when the port is positioned out of communication with the flow passage.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: December 8, 1987
    Assignee: FMC Corporation
    Inventors: Don B. Wafer, Claud C. Barrington
  • Valve stem-to-bonnet backseat
    Patent number: 4510960
    Abstract: A stem-operated fire-resistant gate valve including an improved metal-to-metal stem backseat a eutectic ring assembly for facilitating automatic stem backseating at pre-selected temperatures, spring enhancement of the backseating procedure, and a lost motion connection between the valve stem and the valve closure element.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: April 16, 1985
    Assignee: FMC Corporation
    Inventors: Charles E. Jennings, Claud C. Barrington, Lien-Yan Chen, Bob C. Hopkins, John N. McIntyre, Alfred P. Regitz
  • Pressure insensitive valve
    Patent number: 4311297
    Abstract: A pressure insensitive, fail-safe subsea valve is disclosed. The valve is manipulator operable for deep water application and does not require conventional diving techniques to install, maintain or remove. The valve is pressure balanced by employing a hollow valve stem which equalizes the pressure on both ends of the stem.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: January 19, 1982
    Assignee: Exxon Production Research Company
    Inventor: Claud C. Barrington
  • Concrete removal tool
    Patent number: 4044749
    Abstract: Method and apparatus for breaking concrete from a concrete coated pipe comprising; a frame mounted on the pipe; means supported by the frame for engaging the concrete to break the concrete from the pipe and means for driving the engaging means against the pipe to impart massive forces thereto exceeding the strength of the concrete to thereby break the concrete from the pipe.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: August 30, 1977
    Assignee: HydroTech International, Inc.
    Inventors: Burlie R. Bowen, Claud C. Barrington, Thomas J. Ames, Glen E. Lochte