Patents by Inventor Ingo Kirchhofff

Ingo Kirchhofff 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).

  • Protective and monitoring apparatus for a generator, and use of such a protective and monitoring apparatus
    Patent number: 6714020
    Abstract: A protective and monitoring apparatus (20, 23) for monitoring and reducing shaft currents and shaft voltages on the generator shaft (19) of a generator (16) which produces electrical power, which protective and monitoring device (20, 23) is connected between a contact apparatus (21, 24), which makes contact with the generator shaft (19), and a grounding connection (22, 25) and comprises a parallel circuit formed by a resistance and a capacitance, with one end of the parallel circuit (26, 27) being connected to the contact apparatus (21, 24) and its other end being connected to the grounding connection (22, 25), said parallel circuit being protected against overvoltages on the generator shaft (19) and means (31) being provided for bridging the parallel circuit (26, 27) when an overvoltage occurs.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: March 30, 2004
    Assignee: ALSTOM Technology Ltd
    Inventors: Max Hobelsberger, Ingo Kirchhofff, René Kohler, Zlatimir Posedel
  • Protective and monitoring apparatus for a generator, and use of such a protective and monitoring apparatus
    Publication number: 20030020482
    Abstract: A protective and monitoring apparatus (20, 23) for monitoring and reducing shaft currents and shaft voltages on the generator shaft (19) of a generator (16) which produces electrical power, which protective and monitoring device (20, 23) is connected between a contact apparatus (21, 24), which makes contact with the generator shaft (19), and a grounding connection (22, 25) and comprises a parallel circuit formed by a resistance and a capacitance, with one end of the parallel circuit (26, 27) being connected to the contact apparatus (21, 24) and its other end being connected to the grounding connection (22, 25), said parallel circuit being protected against overvoltages on the generator shaft (19) and means (31) being provided for bridging the parallel circuit (26, 27) when an overvoltage occurs.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 30, 2003
    Inventors: Max Hobelsberger, Ingo Kirchhofff, Rene Kohler, Zlatimir Posedel