Patents by Inventor Leon Hardman

Leon Hardman 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).

  • Automatic direction finder sense antenna
    Patent number: 5353038
    Abstract: A surface conforming sense antenna is integrated with the surface skin of an aircraft by removing a rectangular looped strip of a metallized exterior composite surface skin. The remaining interior metallized portion isolated from the exterior metallized section forms an antenna sense element. The inner metallized portion is connected to an ADF radio receiver to function as a sense antenna in conjunction with a loop antenna. The gap between the metallized inner portion of the exterior metallized section allows lightning energy to be discharged thereacross. The modification does not impose a weight penalty or a wind drag penalty and does not degrade lightning protection for the composite aircraft.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: October 4, 1994
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Gregory W. Osborne, Leon Hardman