Patents by Inventor Natalia GUTMAN

Natalia GUTMAN 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).

  • Sealing arrangement for a bushing and a bushing with such a sealing arrangement
    Patent number: 11769611
    Abstract: Embodiments of the present disclosure relate to a sealing arrangement of a bushing for a power electrical device and a bushing comprising the sealing arrangement. The sealing arrangement includes a top cover; a central conductor going through the top cover; a guide element having a cylinder portion and a flange portion extended from a middle part of the cylinder portion, wherein the cylinder portion is arranged between the top cover and the central conductor, and the flange portion is connected onto the top cover; a static sealing structure provided between the guide element and the top cover; and a dynamic sealing structure provided between the guide element and the central conductor. With the new sealing structure design, it could provide a good sealing performance so that the bushing can be used in various environments.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: September 26, 2023
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Claes Peter Sjöberg, Natalia Gutman, Danan Yao, Peirong Cai
  • A SEALING ARRANGEMENT FOR A BUSHING AND A BUSHING WITH SUCH A SEALING ARRANGEMENT
    Publication number: 20210043339
    Abstract: Embodiments of the present disclosure relate to a sealing arrangement of a bushing for a power electrical device and a bushing comprising the sealing arrangement. The sealing arrangement includes a top cover; a central conductor going through the top cover; a guide element having a cylinder portion and a flange portion extended from a middle part of the cylinder portion, wherein the cylinder portion is arranged between the top cover and the central conductor, and the flange portion is connected onto the top cover; a static sealing structure provided between the guide element and the top cover; and a dynamic sealing structure provided between the guide element and the central conductor. With the new sealing structure design, it could provide a good sealing performance so that the bushing can be used in various environments.
    Type: Application
    Filed: January 23, 2018
    Publication date: February 11, 2021
    Inventors: Claes Peter SJÖBERG, Natalia GUTMAN, Danan YAO, Peirong CAI