Patents by Inventor Stephen R. Norman

Stephen R. Norman 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).

  • Encapsulated ceramic superconductors
    Patent number: 6444917
    Abstract: The invention features a superconducting conductor for use in a preselected fluid cryogen including a composite ceramic superconducting wire having an outer surface along its length; and a sealing structure hermetically surrounding the outer surface to prevent the cryogen from infiltrating into the wire and degrading its superconducting properties, even under pressurized conditions. The superconducting conductor can be used in superconducting cabling and coil applications. The sealing structure can be formed by laminating metallic tapes to the wire, encircling at least one metallic sheet around the outer surface of the wire, welding a plurality of metallic sheets to one another to encircle the outer surface of the wire, or forming a polymer coating completely covering the outer surface of the wire.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: September 3, 2002
    Assignees: American Superconductor Corporation, Pirelli Cavi e Sistemi S.p.A.
    Inventors: John D. Scudiere, David M. Buczek, Steven Fleshler, Derek Patrick Daly, Richard E. Harnois, Stephen R. Norman, Paola Caracino, Marco Nassi, Sergio Spreafico