Patents by Inventor William P. Ballard

William P. Ballard 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).

  • Magnetically insulated transmission line oscillator
    Patent number: 4785261
    Abstract: A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: November 15, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Larry D. Bacon, William P. Ballard, M. Collins Clark, Barry M. Marder