Patents by Inventor Christopher L. Trammell

Christopher L. Trammell 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).

  • Ferrite variable power divider
    Patent number: 6822533
    Abstract: A generally Y-shaped ferrite power divider for transferring an RF input from an input port to either one of two outlet ports or to both outlet ports in an equal or unequal fashion. The input port and the two output ports meet at a junction. An internal magnetic return is positioned in the junction and is in communication with an upper magnetic return and a lower magnetic return. An upper ferrite puck is positioned at the junction above the internal magnetic return and a lower ferrite puck is positioned at the junction below the internal magnetic return.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: November 23, 2004
    Assignee: The Boeing Company
    Inventors: Christopher L. Trammell, Rolf Kich
  • FERRITE VARIABLE POWER DIVIDER
    Publication number: 20040119550
    Abstract: A generally Y-shaped ferrite power divider for transferring an RF input from an input port to either one of two outlet ports or to both outlet ports in an equal or unequal fashion. The input port and the two output ports meet at a junction. An internal magnetic return is positioned in the junction and is in communication with an upper magnetic return and a lower magnetic return. An upper ferrite puck is positioned at the junction above the internal magnetic return and a lower ferrite puck is positioned at the junction below the internal magnetic return.
    Type: Application
    Filed: December 20, 2002
    Publication date: June 24, 2004
    Inventors: Christopher L. Trammell, Rolf Kich
  • Frequency adjustable multipole resonant waveguide load structure
    Patent number: 6549088
    Abstract: A resonant waveguide load structure is provided for use in waveguide systems. The load structure includes a length of waveguide which is open at one end and closed at the other end. The load structure also includes a support pin mounted inside the waveguide near the closed end thereof. The load structure further includes a resonant body mounted on the support pin. The load structure also includes at least one spacer member mounted on the support pin for maintaining the position of the resonant body. This load structure may be combined with a waveguide circulator to provide a novel waveguide equalizer apparatus.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: April 15, 2003
    Assignee: The Boeing Company
    Inventors: Paul Tatomir, Christopher L. Trammell, Rolf Kich
  • FREQUENCY ADJUSTABLE MULTIPOLE RESONANT WAVEGUIDE LOAD STRUCTURE
    Publication number: 20030058059
    Abstract: A resonant waveguide load structure is provided for use in waveguide systems. The load structure includes a length of waveguide which is open at one end and closed at the other end. The load structure also includes a support pin mounted inside the waveguide near the closed end thereof. The load structure further includes a resonant body mounted on the support pin. The load structure also includes at least one spacer member mounted on the support pin for maintaining the position of the resonant body. This load structure may be combined with a waveguide circulator to provide a novel waveguide equalizer apparatus.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Applicant: The Boeing Company
    Inventors: Paul Tatomir, Christopher L. Trammell, Rolf Kich