Patents by Inventor Bernhard Nipper

Bernhard Nipper 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).

  • Method for switching current to successive sections of the stator of a long linear motor
    Patent number: 5136217
    Abstract: When the runner of a linear motor having a long stator which is divided into sections crosses from a first section to a second section, an inverter power supply, which was providing current to the first section via a first switching unit having a relay, is initially gated out. Then the main relay contact paths in the first switching unit are opened and main relay contact paths in a second switching unit for the second section are closed. Only then is the power supply gated in again.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: August 4, 1992
    Assignee: Magnet-Bahn GmbH
    Inventors: Bernhard Hoffmann, Bernhard Nipper, Dieter Wolff