Patents by Inventor Wilhelm Kitzhöfer

Wilhelm Kitzhöfer 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).

  • Metallized fiber structure framework having treated edge surfaces and faces for use as an electrode or recombination element in accumulators
    Patent number: 6558839
    Abstract: The invention provides a treatment for edge surfaces and faces of metallized fiber structure framework plates for use in electric accumulators. The edge surfaces and faces, except for the starting portion of the current tapping tab, are mechanically, thermally or chemically freed of projecting metallized fiber ends and fiber bundles in order to avoid short circuits or soft shorts caused by dendrites penetrating the cell separator or by metallized fiber ends. The mechanical, thermal or chemical treatments can take place individually or in combination with one another.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: May 6, 2003
    Assignee: Deutsche Automobilgesellschaft mbH
    Inventors: Otwin Imhof, Holger Kistrup, Dieter Henke, Wilhelm Kitzhöfer, Uwe Schaffrath
  • Metallized fiber structure framework having treated edge surfaces and faces for use as an electrode or recombination element in accumulators
    Patent number: 6214491
    Abstract: The invention provides a treatment for edge surfaces and faces of metallized fiber structure framework plates for use in electric accumulators. The edge surfaces and faces, except for the starting portion of the current tapping tab, are mechanically, thermally or chemically freed of projecting metallized fiber ends and fiber bundles in order to avoid short circuits or soft shorts caused by dendrites penetrating the cell separator or by metallized fiber ends. The mechanical, thermal or chemical treatments can take place individually or in combination with one another.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: April 10, 2001
    Assignee: Deutsche Automobilgesellschaft mbH
    Inventors: Otwin Imhof, Holger Kistrup, Dieter Henke, Wilhelm Kitzhöfer, Uwe Schaffrath