Patents by Inventor Alexander Puhahn

Alexander Puhahn 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).

  • Winding device for electric motor
    Patent number: 8099858
    Abstract: A winding device for producing a field coil including a double-layer multiple-circuit winding for an electric motor includes a drive. The drive is configured to operate upon a winding mandrel with multiple lamellas arranged to be swung radially outwardly and inwardly by the drive in order to produce the double-layer multiple-circuit winding as a plurality of winding stacks that are arranged in separate slots and electrically connected in series, in parallel or both. At least two axially-separated winding stacks can be produced at the same time by the drive.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: January 24, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Kreuzer, Eberhard Rau, Dirk Wolf, Alexander Puhahn, Olaf Simon, Yvonne Goebel, Bernard Walle, Thomas Harrer
  • WINDING DEVICE FOR A FIELD COIL, PROCESSING EQUIPMENT AND ELECTRIC MACHINE
    Publication number: 20090145995
    Abstract: The invention relates to a winding device for producing a field coil (30) for an electric machine, especially a field coil (30) having a double-layer multiple-circuit winding, the field coil being formed by a plurality of winding stacks (31a, 32a, 33a . . . 31j, 32j, 33j) that are connected in series and/or in parallel. The inventive device is characterized by a winding mandrel (10) on which at least two axially spaced-apart winding stacks (31a, 32a, 33a) can be produced at the same time.
    Type: Application
    Filed: November 23, 2005
    Publication date: June 11, 2009
    Inventors: Helmut Kreuzer, Eberhard Rau, Dirk Wolf, Alexander Puhahn, Olaf Simon, Yvonne Goebel, Bernard Walle, Thomas Harrer