Patents by Inventor Christer Soderberg

Christer Soderberg 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 manufacturing a rotary electric machine and a rotary electric machine
    Patent number: 6597080
    Abstract: The invention relates to a process for producing a rotating electric DC machine, where the main pole of the machine and the slots formed in it for the compensating winding are formed or placed in such a way that the slots are moved radially outward from the center of the stator to provide for an optimal increase in rotor diameter. In accordance with the invention, space is provided for the compensating winding to leave the slots in the main pole by making coil ends (4A) on the main coil (4) of the respective main pole tapered in the radially outward direction. In another alternative or complementary embodiment of the invention, additional space is created for the compensating winding where it leaves the slots by angling the coil ends (4A′) of the main coil radially outward.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 22, 2003
    Assignee: ABB AB
    Inventor: Christer Soderberg
  • Method of manufacturing a rotary electric machine and a rotary electric machine
    Publication number: 20020053852
    Abstract: The invention relates to a process for producing a rotating electric DC machine, where the main pole of the machine and the slots formed in it for the compensating winding are formed or placed in such a way that the slots are moved radially outward from the center of the stator to provide for an optimal increase in rotor diameter. In accordance with the invention, space is provided for the compensating winding to leave the slots in the main pole by making coil ends (4A) on the main coil (4) of the respective main pole tapered in the radially outward direction. In another alternative or complementary embodiment of the invention, additional space is created for the compensating winding where it leaves the slots by angling the coil ends (4A′) of the main coil radially outward.
    Type: Application
    Filed: April 26, 2001
    Publication date: May 9, 2002
    Inventor: Christer Soderberg