Patents by Inventor Andrew S. Wilczek

Andrew S. Wilczek 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).

  • Interdigital slow wave circuit for electron tubes
    Patent number: 3953759
    Abstract: An interdigital delay line for crossed field tubes has vanes extending from their interaction faces to a back wall. One end of each vane extends to the end of the face. The other end is cut out behind the interaction face leaving the face projecting. The interaction impedance is almost as high as that of a line with fingers supported by stubs at their centers, while the thermal dissipation is higher, approaching that of a line with vanes extending over the entire length of the fingers.
    Type: Grant
    Filed: March 20, 1975
    Date of Patent: April 27, 1976
    Assignee: Varian Associates
    Inventors: George K. Farney, Andrew S. Wilczek, Roger A. LaPlante