Patents by Inventor David M. Kershner

David M. Kershner 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).

  • Patent number: 6366257
    Abstract: The present invention discloses a method for generating multiple antenna beams and a system for generating multiple antenna beams. The system comprises a first reflector surface that has a primary and at least a first auxiliary surface, and a second reflector surface, and also comprises first, second, and third feed horns. The first feed horn illuminates the primary surface with radio frequency (RF) energy, the second feed horn illuminates the auxiliary surface with RF energy, and the third feed horn illuminates the second reflector surface with RF energy. The first feed horn and third feed horn are removed from an axis of symmetry of the first auxiliary surface.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: April 2, 2002
    Assignee: The Boeing Company
    Inventors: Parthasarathy Ramanujam, Michael E. Pekar, David M. Kershner, Brian M. Park, Donald L. Davis
  • Patent number: 5952902
    Abstract: A coaxial "M" switch having three coaxial input connectors (A, B, C) spaced evenly from each other, and three coaxial output connectors (1, 2, 3) identically arranged. In a cylindrical barrel embodiment (10) the input and output connectors are located at opposite ends of a cylindrical configuration. In one planar embodiment (30), the input and output connectors alternate with each other and define a hexagonal configuration (40). In another planar embodiment, the input connectors (A, B, C) define an inner triangular configuration (70) that is surrounded by the output connectors (1, 2, 3) defining an outer triangular configuration. In each embodiment, reeds are actuated in predetermined configurations to define three switch positions.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: September 14, 1999
    Inventors: Rolf Kich, Richard L. Bennett, David M. Kershner, James D. Thompson