Patents by Inventor Johannes GRAN HIRVIOJA

Johannes GRAN HIRVIOJA 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).

  • Ground system for high voltage semiconductor valve
    Patent number: 10064260
    Abstract: A high voltage valve arrangement includes a high voltage valve unit; an external electric shield structure arranged at least partially around the high voltage modular valve unit and a grounding system. The grounding system includes a grounding system configured to be remotely extended from a retracted position to an extended position, whereby the extendable grounding device establishes electric connection with the external shield structure when it is extended from the retracted position.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: August 28, 2018
    Assignee: ABB SCHWEIZ AG
    Inventors: Björn Sandin, Christer Sjöberg, Erik Doré, Johannes Gran Hirvioja
  • GROUND SYSTEM FOR HIGH VOLTAGE SEMICONDUCTOR VALVE
    Publication number: 20160278192
    Abstract: A high voltage valve arrangement includes a high voltage valve unit; an external electric shield structure arranged at least partially around the high voltage modular valve unit and a grounding system. The grounding system includes a grounding system configured to be remotely extended from a retracted position to an extended position, whereby the extendable grounding device establishes electric connection with the external shield structure when it is extended from the retracted position.
    Type: Application
    Filed: November 5, 2013
    Publication date: September 22, 2016
    Applicant: ABB TECHNOLOGY LTD
    Inventors: Björn SANDIN, Christer SJÖBERG, Erik DORÉ, Johannes GRAN HIRVIOJA