Patents by Inventor Aaron E. Pierce

Aaron E. Pierce 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: 4463597
    Abstract: A method and system for separating and sealing sections of a pipeline are disclosed. A spherical member is advanced by pressure along the interior of a pipeline to seat against a restraining member forming a pressure-tight seal. The advancing pressure may then be increased within the pipeline to monitor for leaks in the upstream section of the pipeline.
    Type: Grant
    Filed: February 2, 1983
    Date of Patent: August 7, 1984
    Assignee: Exxon Production Research Co.
    Inventors: Aaron E. Pierce, Wynn P. Rickey
  • Patent number: 4362413
    Abstract: A retrievable connector assembly is disclosed for securing two parts together. The assembly includes a guide frame to support the first of two parts and a pair of rotatable shafts with threaded ends to carry male coupling members with pins which extend from each coupling member. The assembly also includes a mounting hub attached to the second part. The mounting hub includes female coupling members having slots to receive the pins of the male coupling members. Rotation of the shafts moves the pins into lateral legs of the slots locking the two parts together. Further rotation of the shafts causes the male coupling members to move upward along the shafts forcing the first and second parts together. The two parts can be separated for retrieval by rotating the shafts in the reverse direction thereby separating the male and female coupling members.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: December 7, 1982
    Assignee: Exxon Production Research Co.
    Inventors: Richard A. Heard, Aaron E. Pierce