Patents by Inventor Luther L. Manchester, Jr.

Luther L. Manchester, Jr. 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).

  • Apparatus for connecting together flowline end portions
    Patent number: 4290632
    Abstract: A grip-seal apparatus for connecting together flowline end portions having first and second housings having alignable bores therethrough, with gripper member mounted in the first housing for moving radially inwardly into gripping engagement with the first flowline member. A sealing assembly is mounted with the second housing for moving radially inwardly into sealing engagement with the first flowline member. An activating sleeve mounted in the second housing and with the gripper members moves longitudinally into engagement with the gripper members and the sealing assembly.
    Type: Grant
    Filed: September 4, 1980
    Date of Patent: September 22, 1981
    Inventors: Luther L. Manchester, Jr., Bobby J. Reneau
  • Pivotal ball check valve
    Patent number: 4256283
    Abstract: A ball valve housing including a main housing section and an actuator housing section wherein a ball valve is mounted in the actuator housing section for movement into the main housing section, the ball valve being pivotally connected to an actuator shaft for axial and rotational movement to a seated position against one of two opposing annular seating surfaces in the main housing section.
    Type: Grant
    Filed: April 6, 1979
    Date of Patent: March 17, 1981
    Inventors: Bobby J. Reneau, Luther L. Manchester, Jr.