Patents by Inventor John C. Alley

John C. Alley 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).

  • Modulated scanning antenna
    Patent number: 4928109
    Abstract: A scanning antenna comprises a non-magnetic, electrically conductive radiation horn defining an antenna opening having a predetermined central line of focus, and at least one magnetically switchable conductive element such as a reed relay mounted to extend across the antenna opening perpendicular to and spaced from the central line of focus. A magnetic field generator such as an electromagnet is positioned to generate a magnetic field to control switching of the conductive element between its conductive and non-conductive states, and a control circuit controls operation of the magnetic field generator.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: May 22, 1990
    Assignee: Cubic Defense Systems, Inc.
    Inventors: Mark E. Bonebright, Paul R. Eberhardt, John C. Alley