Patents by Inventor John C. Knowler

John C. Knowler 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).

  • Wing slat anti-ice air duct system
    Patent number: 4615499
    Abstract: An anti-icing pressurized air distribution duct system for deployable wing slats wherein mutually telescoping transfer ducts interconnecting a longitudinal wing slat spray duct and a longitudinal wing supply duct, with bearing and seal means fixed on the inner transfer duct to bear slidably against the outer duct interior and remaining protected within the outer duct throughout slat extension and retraction.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: October 7, 1986
    Assignee: The Boeing Company
    Inventor: John C. Knowler