Patents by Inventor Fernard Grivon

Fernard Grivon 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).

  • Multifilament strand with Ag cladding and a coating of oxygen-permeable ceramic
    Patent number: 6344430
    Abstract: A powder in tube type method of making an HTc superconductive multifilament strand having a silver-based matrix, and an HTc superconductive multifilament strand having a silver-based matrix. The method includes, prior to the monofilament step, preparing a composite multilayer material is including at least one silver-based sheet, and at least one layer of non-superconductive ceramic material that is permeable to oxygen. During the monofilament step, a thickness of composite multilayer material is interposed between first and second thicknesses of silver-based material, thereby forming the first silver-based envelope.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: February 5, 2002
    Assignee: Nexans
    Inventors: Gérard Duperray, Fernard Grivon, Peter Friedrich Herrmann
  • Method of decoupling an HTc superconductive multifilament strand having a silver-based matrix
    Patent number: 6110873
    Abstract: A powder in tube method of making an HTc superconductive multifilament strand having a silver-based matrix, in which method:prior to the monofilament step:a composite multilayer material is prepared comprising at least one silver-based sheet, and at least one layer of non-superconductive ceramic material that is permeable to oxygen; andduring the monofilament step, a thickness of composite multilayer material is interposed between first and second thicknesses of silver-based material, thereby forming said first silver-based envelope.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: August 29, 2000
    Assignee: Alcatel
    Inventors: Gerard Duperray, Fernard Grivon, Peter Friedrich Herrmann