Patents by Inventor Stefan Gisy

Stefan Gisy 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).

  • Patent number: 8150230
    Abstract: A high-voltage bushing has a conductor and a core surrounding the conductor, wherein the core comprises a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material. The spacer is wound in spiral form around an axis, the axis being defined through the shape of the conductor. Thus, a multitude of neighboring layers is formed. The core further comprises equalization elements in appropriate radial distances to the axis. The equalization elements comprise electrically conductive layers, which layers have openings, through which openings the matrix material can penetrate, and in that the equalization elements are applied to the core separately from the spacer. The electrically conductive layers can be net-shaped, grid-shaped, meshed or perforated. The openings are fillable with the matrix material, e.g., a particle-filled resin can be used.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: April 3, 2012
    Assignee: ABB Research Ltd
    Inventors: Vincent Tilliette, Jens Rocks, Stefan Gisy, Roger Hedlund, Gerd Chalikia, Ruedi Meili
  • Publication number: 20090014211
    Abstract: A high-voltage bushing has a conductor and a core surrounding the conductor, wherein the core comprises a sheet-like spacer, which spacer is impregnated with an electrically insulating matrix material. The spacer is wound in spiral form around an axis, the axis being defined through the shape of the conductor. Thus, a multitude of neighbouring layers is formed. The core further comprises equalization elements in appropriate radial distances to the axis. The equalization elements comprise electrically conductive layers, which layers have openings, through which openings the matrix material can penetrate, and in that the equalization elements are applied to the core separately from the spacer. The electrically conductive layers can be net-shaped, grid-shaped, meshed or perforated. The openings are fillable with the matrix material, e.g., a particle-filled resin can be used.
    Type: Application
    Filed: June 13, 2008
    Publication date: January 15, 2009
    Applicant: ABB RESEARCH LTD
    Inventors: Vincent TILLIETTE, Jens Rocks, Stefan Gisy, Roger Hedlund, Gerd Chalikia, Ruedi Meili