Patents by Inventor David Jon Heer

David Jon Heer 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).

  • Electro-magnetic up-lock for retractable landing gear
    Patent number: 8109465
    Abstract: An electro-magnetic landing gear up-lock includes at least one electro-magnet mounted to the aircraft structure positioned adjacent the landing gear trunion. When the at least one electro-magnet is energized, magnetically responsive material in the landing gear positioned adjacent to the electro-magnet is attracted to the electro-magnet with sufficient force to hold the landing gear in a retracted. De-energizing the electro-magnet causes the electro-magnet to release the landing gear to allow the landing gear to extend.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: February 7, 2012
    Assignee: Textron Innovations Inc.
    Inventor: David Jon Heer