Patents by Inventor David S. McKeehan

David S. McKeehan 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: 4528757
    Abstract: A remotely operable apparatus and method for determining from a remote location the distance and angular orientation between two structurally unconnected members, such as two sections of a subsea pipeline, is disclosed. The apparatus of the invention comprises generally two remotely releasable guide posts disposed, respectively, in known spaced relationships to the two structurally unconnected members and a remotely operable measuring template. The remotely operable measuring template is adapted to telescope axially and includes two ball and socket joints to compensate for misalignment or differences in elevation between the guide posts. In practicing the method of the invention, the remotely operable measuring template is positioned over and firmly attached to the guide posts. All movable joints of the template are then locked and the guide posts are remotely released. The guide posts may then be retrieved to the remote location in the same spaced relationship as originally disposed.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: July 16, 1985
    Assignee: Exxon Production Research Co.
    Inventors: David S. McKeehan, Frans Kopp