Patents by Inventor Fred C. Tilker

Fred C. Tilker 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).

  • Position indicator for drill string compensator
    Patent number: 4466488
    Abstract: A motion compensator for disposition between an offshore support structure and an offshore well structure movable with respect thereto comprises a compensator assembly interconnected with the support structure and the well structure such that relative movement between said structures will cause movement within the compensator assembly, and a position indicator including a cam assembly for measuring the relative movement within the compensator assembly, and a transducer operatively associated with the cam assembly for translating its measurements into a signal.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: August 21, 1984
    Assignee: NL Industries, Inc.
    Inventors: Douglas W. J. Nayler, Gerald W. Gilson, Fred C. Tilker, James W. Albert