Patents by Inventor Jeffrey Door

Jeffrey Door 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).

  • Methods and apparatus for electric bushing fabrication
    Publication number: 20060157269
    Abstract: Methods and apparatus for a corona free bushing are provided. The bushing includes an insulator including an elongate body having a bore therethrough, and a conductor positioned at least partially within the bore, the conductor including a load current carrying conductive core at least partially clad with at least one layer of a semiconducting insulation, the semiconducting insulation facilitates grading a potential between a radial inner surface of the layer and a radially outer surface of the layer such that corona generated by the conductor is substantially zero.
    Type: Application
    Filed: January 18, 2005
    Publication date: July 20, 2006
    Inventors: Alvin Kopp, Jeffrey Door, Peter Derner