Patents by Inventor Douglas W. Murphy

Douglas W. Murphy 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: 4010619
    Abstract: A tethered underwater work system comprises a primary lift module attached o a support vehicle by means of a primary tether. A submarine work vehicle is removably attached to said primary lift module and connected thereto by means of a secondary tether. Additionally, the lift module contains electrical distribution systems to permit an extensive control and instrumentation linkage with the submarine work vehicle and remotely controlled manipulators mounted thereon.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: March 8, 1977
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John D. Hightower, George R. Beaman, George A. Wilkins, Douglas W. Murphy