Patents by Inventor Robert Ståhl

Robert Ståhl 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).

  • Electric bushing and a method of manufacturing an electric bushing
    Patent number: 7875803
    Abstract: A bushing for electrical current and/or voltage through a grounded plane. A substantially rotationally symmetrical insulating body surrounds a central electrical conductor. The bushing includes a sealing member for gas/liquid sealing between the conductor and the insulator body. The bushing includes a compressible sealing element, which forms a gas/liquid seal, integrated with the insulating body, between the conductor and the insulating body. A method of manufacturing a bushing.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: January 25, 2011
    Assignee: ABB Technology Ltd.
    Inventors: Peter Sjöberg, Robert Ståhl