Patents by Inventor Thomas Hirschfeld

Thomas Hirschfeld 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: 8134070
    Abstract: The invention relates to a busbar pack comprising n busbars (2) and at least n?1 insulating bars (4) the surfaces of which project beyond the busbars (2), one insulating bar (4) being interposed between two busbars (2), said stack of bars (2, 4) being immobilized in their position relative each other by devices. The invention is characterized in that at least one inner busbar (2) is provided with a reticular bar (6) on both sides thereof and has perforations (14) that are arranged to match crossbars (12) of corresponding reticular bars (6). The invention allows production of a busbar pack at least the inner busbar (2) of which is convection-cooled, said busbar cooling system being producible at low costs.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: March 13, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Hirschfeld
  • Patent number: 7924550
    Abstract: The invention relates to a multiphase line fuse module. According to the invention, said multiphase line fuse module comprises a busbar pack (32), interposed between two supporting plates (16, 42), at least one line fuse (52, 66) with an associated AC contactor (54) per phase, said phase assemblies being arranged one on top of the other in front on a small face of the busbar pack (32) having connections (56, 58) on the small face and being electrically connected to the small face connections (56, 68), and a cover closing the phase assemblies on the front side. The invention thus provides a space-saving system for line fuses (52, 66), AC contactors (54) and busbars in one housing, thereby allowing an easy replacement of the wearing parts.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 12, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Thomas Hirschfeld
  • Publication number: 20100025105
    Abstract: The invention relates to a busbar pack comprising n busbars (2) and at least n-1 insulating bars (4) the surfaces of which project beyond the busbars (2), one insulating bar (4) being interposed between two busbars (2), said stack of bars (2, 4) being immobilized in their position relative each other by devices. The invention is characterized in that at least one inner busbar (2) is provided with a reticular bar (6) on both sides thereof and has perforations (14) that are arranged to match crossbars (12) of corresponding reticular bars (6). The invention allows production of a busbar pack at least the inner busbar (2) of which is convection-cooled, said busbar cooling system being producible at low costs.
    Type: Application
    Filed: October 19, 2007
    Publication date: February 4, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventor: Thomas Hirschfeld
  • Publication number: 20100008023
    Abstract: The invention relates to a multiphase line fuse module. According to the invention, said multiphase line fuse module comprises a busbar pack (32), interposed between two supporting plates (16, 42), at least one line fuse (52, 66) with an associated AC contactor (54) per phase, said phase assemblies being arranged one on top of the other in front on a small face of the busbar pack (32) having connections (56, 58) on the small face and being electrically connected to the small face connections (56, 68), and a cover closing the phase assemblies on the front side. The invention thus provides a space-saving system for line fuses (52, 66), AC contactors (54) and busbars in one housing, thereby allowing an easy replacement of the wearing parts.
    Type: Application
    Filed: October 19, 2007
    Publication date: January 14, 2010
    Applicant: Siemens Aktiengesellschaft
    Inventor: Thomas Hirschfeld
  • Patent number: D457040
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: May 14, 2002
    Assignee: VBW Werkzeugfabrik GmbH
    Inventor: Thomas Hirschfeld