Patents by Inventor Jesper CALPSON

Jesper CALPSON 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).

  • Draw-rod bushing with sealed bottom contact
    Patent number: 12142392
    Abstract: The present disclosure relates to a bushing comprising a conductor tube, a support tube, arranged within the conductor tube, a draw-rod configured to run through the support tube, and a contact arrangement arranged to be drawn into the conductor tube by the draw-rod. The contact arrangement comprises a sealing plug arranged for sealingly engaging an inside wall of the conductor tube to prevent liquid from passing the sealing plug into the conductor tube.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: November 12, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Fredrik Graas, Jesper Calpson, Alejandra Ravanal, David Emilsson, Peter Sjöberg, Zoltan Repasi
  • DRAW-ROD BUSHING WITH SEALED BOTTOM CONTACT
    Publication number: 20220293302
    Abstract: The present disclosure relates to a bushing comprising a conductor tube, a support tube, arranged within the conductor tube, a draw-rod configured to run through the support tube, and a contact arrangement arranged to be drawn into the conductor tube by the draw-rod. The contact arrangement comprises a sealing plug arranged for sealingly engaging an inside wall of the conductor tube to prevent liquid from passing the sealing plug into the conductor tube.
    Type: Application
    Filed: November 20, 2020
    Publication date: September 15, 2022
    Applicant: Hitachi Energy Switzerland AG
    Inventors: Fredrik GRAAS, Jesper CALPSON, Alejandra RAVANAL, David EMILSSON, Peter SJÖBERG, Zoltan REPASI