Patents by Inventor Anna Brorsson

Anna Brorsson 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).

  • Method of testing the integrity of a second seal of an electrical insulator
    Patent number: 9322737
    Abstract: An insulator for separating two objects with different electrical potential, the insulator including an insulating body enclosing a first volume for housing a gas, the body being provided with an opening, and a sealing arrangement arranged to seal the opening in the body and including a first gas-tight sealing element for sealing the opening and provided with a first closable opening, and a second gas-tight sealing element for sealing the opening, and arranged inside the first sealing element so that the first and second sealing elements define a second volume significantly smaller than the first volume. The second sealing element is provided with a second closable opening which in cooperation with the first closable opening enable control of the gas pressure in the first volume. Methods for leakage detection of the insulator are also disclosed.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: April 26, 2016
    Assignee: ABB Technology Ltd
    Inventors: Anders Holmberg, Anna Brorsson, Bengt Asplund, Jonas Persson, Mattias Lundborg
  • Method Of Testing The Integrity Of A Second Seal Of An Electrical Insulator
    Publication number: 20140373602
    Abstract: An insulator for separating two objects with different electrical potential, the insulator including an insulating body enclosing a first volume for housing a gas, the body being provided with an opening, and a sealing arrangement arranged to seal the opening in the body and including a first gas-tight sealing element for sealing the opening and provided with a first closable opening, and a second gas-tight sealing element for sealing the opening, and arranged inside the first sealing element so that the first and second sealing elements define a second volume significantly smaller than the first volume. The second sealing element is provided with a second closable opening which in cooperation with the first closable opening enable control of the gas pressure in the first volume. Methods for leakage detection of the insulator are also disclosed.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Anders Holmberg, Anna Brorsson, Bengt Asplund, Jonas Persson, Mattias Lundborg