Patents by Inventor Witold Sobczak

Witold Sobczak 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).

  • TRANSFORMER AND MANUFACTURING METHOD
    Publication number: 20230136592
    Abstract: A transformer comprises a tank having tank walls. The tank walls comprise composite panels having a core. The tank has a fluid-tight insert.
    Type: Application
    Filed: April 30, 2021
    Publication date: May 4, 2023
    Inventors: Lukasz MICHALSKI, Pawel KLYS, Marcel CIESIELSKI, Witold SOBCZAK
  • Cover for a distribution transformer filled with a dielectric liquid
    Patent number: 11211190
    Abstract: The subject of the present application is a cover for distribution transformer filled with a dielectric liquid, equipped with electronic device integrated with the cover which is applied for transmission and distribution of electric energy. The cover is characterized in that the electronic device is immersed in the dielectric liquid filling a cooling compartment fixed on the cover; the cooling compartment has side walls, a top wall and a bottom wall which bottom wall is matched in the window made in the cover and the bottom wall forms a thermal barrier between the interior of the electric power device and the interior of the cooling compartment and the both interiors of the cooling compartment and of the electric power device are hermetically closed together.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 28, 2021
    Assignee: HITACHI ENERGY SWITZERLAND AG
    Inventors: Witold Sobczak, Pawel Klys, Max Claessens, Filip Grecki, Pawel Aloszko, Lukasz Bachorz, Krzysztof Obrebski, Marcin Czopek
  • COVER FOR A DISTRIBUTION TRANSFORMER FILLED WITH A DIELECTRIC LIQUID
    Publication number: 20190206605
    Abstract: The subject of the present application is a cover for distribution transformer filled with a dielectric liquid, equipped with electronic device integrated with the cover which is applied for transmission and distribution of electric energy. The cover is characterized in that the electronic device is immersed in the dielectric liquid filling a cooling compartment fixed on the cover; the cooling compartment has side walls, a top wall and a bottom wall which bottom wall is matched in the window made in the cover and the bottom wall forms a thermal barrier between the interior of the electric power device and the interior of the cooling compartment and the both interiors of the cooling compartment and of the electric power device are hermetically closed together.
    Type: Application
    Filed: March 12, 2019
    Publication date: July 4, 2019
    Inventors: Witold Sobczak, Pawel Klys, Max Claessens, Filip Grecki, Pawel Aloszko, Lukasz Bachorz, Krzysztof Obrebski, Marcin Czopek