Patents by Inventor Stefan Valdermarsson

Stefan Valdermarsson 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).

  • Circuit breaker
    Patent number: 6927355
    Abstract: The invention relates to a circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (6). The movable contact and the means for transmitting movement are arranged in a gas-tight apparatus chamber (31) surrounded by a gas-tight apparatus housing (9) of insulating material such as porcelain. In accordance with the invention the motor (6) is arranged entirely in the apparatus chamber (31). The invention also relates to an electric plant provided with the breaker claimed, uses of the breaker claimed and a method of breaking electric current in which the breaker claimed is used.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: August 9, 2005
    Assignee: ABB AB
    Inventors: Per Olof Thuresson, Lars Hermansson, Tomas Roininen, Stefan Valdermarsson
  • Switching device system, components therefore and methods relating thereto
    Publication number: 20040099639
    Abstract: The invention concerns a switching device system including at least one switching device, signal means and control means. Each switching device includes at least one mobile contact part, an electric motor and, coupling means. The coupling means is arranged to transfer motion from the electric motor to the mobile contact part. The control means is arranged to control the switching device. According to the invention the control means is at least partly remotely located from the switching device. The signal means transmit signals from the switching device to the remotely located control means and vice/versa. The signals represent real-time data and/or off-line data The invention concerns also a switching device, control means and methods related to the invented system as well as computer program products for such system and electric power system being provided with such system.
    Type: Application
    Filed: July 2, 2003
    Publication date: May 27, 2004
    Inventors: Stefan Valdermarsson, Per Larsson, Philip C Kjaer, Per-Olof Thureson, Sjoerd G Bogsa
  • Circuit breaker
    Publication number: 20030173336
    Abstract: The invention relates toa circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (6). The movable contact and the means for transmitting movement are arranged in a gas-tight apparatus chamber (31) surrounded by a gas-tight apparatus housing (9) of insulating material such as porcelain. In accordance with the invention the motor (6) is arranged entirely in the apparatus chamber (31). The invention also relates to an electric plant provided with the breaker claimed, uses of the breaker claimed and a method of breaking electric current in which the breaker claimed is used.
    Type: Application
    Filed: February 27, 2003
    Publication date: September 18, 2003
    Inventors: Per Olof Thursesson, Lars Hermansson, Tomas Roininen, Stefan Valdermarsson