Patents by Inventor David Francis Bowman

David Francis Bowman 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).

  • RF Power coupling network employing a parallel plate transmission line
    Patent number: 3958247
    Abstract: A pair of conductive circular plates are positioned in a parallel spaced relationship. A conductive ring-like band extending about the periphery of the plates forms an enclosed parallel plate transmission line. A coupling member is located at the center of this enclosed transmission line. A plurality of peripheral coupling members to the transmission line are spaced radially from and in a ring-like pattern about the center coupling member. A plurality of radio frequency (RF) power absorption members are coupled to the transmission line at the regions between the peripheral coupling members to reduce radio frequency signal coupling between the peripheral coupling members.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: May 18, 1976
    Assignee: RCA Corporation
    Inventors: Bruce Fredric Bogner, David Francis Bowman