Patents by Inventor Mark J. Humphrey

Mark J. Humphrey 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).

  • Test cart for aircraft control surface measurements
    Patent number: 5077671
    Abstract: A test cart automatically measures the full range of motion of cockpit controls and the full range of responsive motion of airplane ailerons, rudder, elevators, spoilers, stabilizer and flaps/slats. A computer is electrically linked to these devices and automatically plots cockpit control motion, and responsive control surface motion, in order to determine that control surfaces function properly during aircraft assembly.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: December 31, 1991
    Assignee: The Boeing Company
    Inventors: Daniel D. Leslie, Mark J. Humphrey, Ted E. Rogers, Lyal K. Schlotterbeck, Lynn Seegmiller, Andrew L. West, III