Patents by Inventor Brian R. Kingham

Brian R. Kingham 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).

  • Power line sensors and systems incorporating same
    Patent number: 7174261
    Abstract: An apparatus for sensing the current in a power line of a power system and systems incorporating the apparatus are disclosed. The apparatus may comprise an enclosure providing a window operable to permit the passage of the power line therethrough. The apparatus may further comprise an active current transformer set within the enclosure and operative to produce a scaled version of the current. The apparatus may further comprise an amplifier coupled with the active current transformer and operative to reduce the phase shift and ratio error between the current and the scaled version of the current. The apparatus may further comprise a powering current transformer set within the enclosure and operative to receive power from the power line on a primary winding and deliver power on a secondary winding.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: February 6, 2007
    Assignee: Power Measurement Ltd.
    Inventors: Colin N. Gunn, Martin A. Hancock, J. Bradford Forth, Simon H. Lightbody, Jason Sheppard, Brian R. Kingham
  • Power line sensors and systems incorporating same
    Publication number: 20040183522
    Abstract: An apparatus for sensing the current in a power line of a power system and systems incorporating the apparatus are disclosed. The apparatus may comprise an enclosure providing a window operable to permit the passage of the power line therethrough. The apparatus may further comprise an active current transformer set within the enclosure and operative to produce a scaled version of the current. The apparatus may further comprise an amplifier coupled with the active current transformer and operative to reduce the phase shift and ratio error between the current and the scaled version of the current. The apparatus may further comprise a powering current transformer set within the enclosure and operative to receive power from the power line on a primary winding and deliver power on a secondary winding.
    Type: Application
    Filed: March 18, 2004
    Publication date: September 23, 2004
    Applicant: Power Measurement Ltd.
    Inventors: Colin N. Gunn, Martin A. Hancock, J. Bradford Forth, Simon H. Lightbody, Jason Sheppard, Brian R. Kingham