Patents by Inventor Willard D. Arnquist

Willard D. Arnquist 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).

  • Lateral control system
    Patent number: 4142699
    Abstract: Apparatus including a spoiler quadrant coupled to the aileron cable control system of the aircraft, rotation of which spoiler quadrant in either direction causes a bell crank to rotate about its pivot point in one direction only from its inactive position. A plurality of links transfer this motion to operate inboard spoilers simultaneously on both sides of the aircraft in response to and proportional to the degree of aileron deflection.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: March 6, 1979
    Assignee: Boeing Commercial Airplane Company
    Inventors: Willard D. Arnquist, Thomas G. Foster, Melvin J. Roalsvig