Patents by Inventor Jonas Birgersson

Jonas Birgersson 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).

  • High voltage bushing with reinforced conductor
    Patent number: 9218900
    Abstract: A high voltage bushing including a hollow insulator and a conductor extending through the hollow insulator and including a hollow conductor fixed at the ends of the hollow insulator. The conductor includes a supporting part arranged inside the hollow conductor, the supporting part extends in the longitudinal direction of the hollow conductor and the supporting part is adapted to support the hollow conductor in order to increase the stiffness of the conductor and thereby decrease the static deflection of the conductor in the hollow insulator.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: December 22, 2015
    Assignee: ABB Technology AG
    Inventor: Jonas Birgersson
  • High Voltage Bushing With Reinforced Conductor
    Publication number: 20130248238
    Abstract: A high voltage bushing including a hollow insulator and a conductor extending through the hollow insulator and including a hollow conductor fixed at the ends of the hollow insulator. The conductor includes a supporting part arranged inside the hollow conductor, the supporting part extends in the longitudinal direction of the hollow conductor and the supporting part is adapted to support the hollow conductor in order to increase the stiffness of the conductor and thereby decrease the static deflection of the conductor in the hollow insulator.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Inventor: Jonas Birgersson
  • Method for controlling drying of a web-formed material
    Patent number: 6938359
    Abstract: A web-formed material (1), preferably a pulp web (1), is passed through a drying plant, comprising blow boxes arranged in a plurality of drying decks, floating above lower blow boxes, which at their upper sides blow out hot process air against the web-formed material (1). Water, in the form of steam, escaping from the web-formed material (1) is discharged by the process air, at least part of which is recirculated (43) whereas the non-recirculated process air is discharged as exhaust air (41) and is replaced by a corresponding portion of supply air (42) with a low water content. The temperature of the process air is controlled (4).
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: September 6, 2005
    Assignee: Andritz Technology and Asset Management GmbH
    Inventors: Jonas Birgersson, Per Holmberg
  • Method for controlling drying of a web-formed material
    Publication number: 20040064967
    Abstract: A web-formed material (1), preferably a pulp web (1), is passed through a drying plant, comprising blow boxes arranged in a plurality of drying decks, floating above lower blow boxes, which at their upper sides blow out hot process air against the web-formed material (1). Water, in the form of steam, escaping from the web-formed material (1) is discharged by the process air, at least part of which is recirculated (43) whereas the non-recirculated process air is discharged as exhaust air (41) and is replaced by a corresponding portion of supply air (42) with a low water content. The temperature of the process air is controlled (4).
    Type: Application
    Filed: August 5, 2003
    Publication date: April 8, 2004
    Inventors: Jonas Birgersson, Per Holmberg