Patents by Inventor Birger Andersson

Birger Andersson 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).

  • Patent number: 7152306
    Abstract: A method for installing a stator winding in a stator core. A winding turn is formed by drawing a cable portion from a cable reel and inserting it into two winding slots. Each winding turn that is jointlessly connected to first winding turn and has the same winding direction as the first turn is formed by making this winding turn include a cable section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over a gable of the reel. To form each winding turn that is jointlessly connected to the first winding turn and has a second winding direction opposite the winding direction of the first turn, the cable portion forming this winding turn is made to include a section corresponding to a turn on the reel that has been lifted off the reel by lateral movement over the other gable.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: December 26, 2006
    Assignee: ABB AB
    Inventors: Birger Andersson, Lars Öhrn, John Seppas, Hans-Åke Eriksson, Gunnar Porsby, Göran Eriksson, Jan-Olof Lamell, Ville Voutilainen, Daniel Dahlblom, Lars Bjernegård
  • Publication number: 20040084993
    Abstract: The invention relates to a method for installing a stator winding in a stator core (5), the stator winding being formed of at least one cable (1), which is flexible and comprises at least one electric conductor (50) with an envelope (51) capable to confine the electric field generated around the conductor. When a winding turn is to be formed, a cable portion is drawn out from the cable reel and inserted in its cross-direction into two winding slots. For the formation of each winding turn (10) that is jointlessly connected to first winding turn (10) that is jointlessly connected to a first winding turn (7) and has the same winding direction as the first winding turn, the cable portion forming this winding turn is made to include a cable section (13) corresponding to a cable turn on the cable reel that has been lifted off from the cable reel by way of a lateral movement over one (15a) of the gables of the cable reel.
    Type: Application
    Filed: December 23, 2003
    Publication date: May 6, 2004
    Inventors: Birger Andersson, Lars Ohrn, John Seppas, Hans-Ake Eriksson, Gunnar Porsby, Goran Eriksson, Jan-Olof Lamell, Ville Voutilainen, Daniel Dahlblom, Lars Bjernegard
  • Patent number: 6046010
    Abstract: The invention concerns a process for in vitro evaluation of a potentially allergenic or tissue irritating substances, characterized in that blood cells are cultivated in the presence of serial dilutions of the substance whereby the highest concentration of the substance being non toxic to the cells is serial diluted, cell proliferation is measured and the presence of cytokines is measured whereby: the presence of one or more of the alarm cytokines of class 0 only is an indication of tissue damage and chemical toxic effects; the presence of one or more alarm cytokines of class 0 and possibly one or more cytokines of class IV type but not neopterin is an indication of delayed type hypersensivity such as cellular immunity, delayed allergy and contact eczema; and the presence of one or more alarm cytokines of class 0 and at least neopterin and possibly one or more cytokines of class I is an indication of immediate type hypersensivity such as asthma, hay fever, urticaria and rhinitis.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: April 4, 2000
    Inventor: Birger Andersson
  • Patent number: 4113101
    Abstract: A packing container of substantially cylindrical form is made from a convoluted blank with the end portions thereof sealed together. One end of the upper edge of the blank has a tab member extending circumferentially of the cylindrical container and the other end of the upper edge of the blank has a corresponding cut-out portion. The ends are overlapped, with the tab portion on the outside, to such an extent that the width of the seal is greater than the circumferential length of the cut-out portion so that the seal includes a finger-like extension up to the top of the container. A tear thread is attached around the inside of the container and extends along the outer tab portion so that when pulled it will tear through the finger-like seal thus facilitating opening of the container.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: September 12, 1978
    Assignee: AB Ziristor
    Inventors: Herwig Pupp, Otto Birger Andersson
  • Patent number: RE38423
    Abstract: The invention concerns a process for in vitro evaluation of a potentially allergenic or tissue irritating substances, characterized in that blood cells are cultivated in the presence of serial dilutions of the substance whereby the highest concentration of the substance being non toxic to the cells is serial diluted, cell proliferation is measured and the presence of cytokines is measured whereby: the presence of one or more of the alarm cytokines of class 0 only is an indication of tissue damage and chemical toxic effects; the presence of one or more alarm cytokines of class 0 and possibly one or more cytokines of class IV type but not neopterin is an indication of delayed type hypersensitivity such as cellular immunity, delayed allergy and contact eczema; and the presence of one or more alarm cytokines of class 0 and at least neopterin and possibly one or more cytokines of class I is an indication of immediate type hypersensitivity such as asthma, hay fever, urticaria and rhinitis.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: February 10, 2004
    Assignee: Biovator Technologies AB
    Inventor: Birger Andersson