Patents by Inventor Saskia BUFFONI

Saskia BUFFONI 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: 12374472
    Abstract: The present invention relates to a method for re-establishing an electrical apparatus of medium or high voltage. The method includes providing an electrical apparatus designed for using an insulation medium containing SF6, removing SF6 from an insulation space contained in the apparatus and filling an alternative insulation medium into the insulation space, wherein the alternative insulation medium is a mixture of at least one organofluorine compound A and a carrier gas containing nitrogen.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: July 29, 2025
    Assignee: Hitachi Energy Ltd
    Inventors: Johannes Hengstler, Saskia Buffoni, Ulrich Straumann, Manuel Naef, Loic Fave
  • Publication number: 20240372340
    Abstract: The present invention relates to an electrical apparatus for the generation, the transmission, and/or the distribution of electrical energy comprising a housing enclosing an electrical apparatus interior space, at least a portion of the electrical apparatus interior space forming an insulation space, in which an electrical component is arranged and which contains an insulation medium surrounding the electrical component. The insulation medium contains an organofluorine compound. The electrical apparatus further comprises an adsorber comprising a zeolite for removing at least a part of a contaminant and/or decomposition product resulting from arcing or partial discharge in the insulation space. The apparatus is characterized in that the zeolite contains: less than 0.5 at % of magnesium (Mg) less than 0.5 at % of calcium (Ca) and less than 0.5 at % of iron (Fe).
    Type: Application
    Filed: June 23, 2023
    Publication date: November 7, 2024
    Applicant: Hitachi Energy Ltd
    Inventors: Saskia BUFFONI, Lise DONZEL, Pawel Adam KRAWCZYK, Moritz BOEHM, Michael GATZSCHE
  • Publication number: 20230317320
    Abstract: The present invention relates to a method for re-establishing an electrical apparatus of medium or high voltage. The method includes providing an electrical apparatus designed for using an insulation medium containing SF6, removing SF6 from an insulation space contained in the apparatus and filling an alternative insulation medium into the insulation space, wherein the alternative insulation medium is a mixture of at least one organofluorine compound A and a carrier gas containing nitrogen.
    Type: Application
    Filed: September 8, 2021
    Publication date: October 5, 2023
    Applicant: Hitachi Energy Switzerland AG
    Inventors: Johannes HENGSTLER, Saskia BUFFONI, Ulrich STRAUMANN, Manuel NAEF, Loic FAVE