Patents by Inventor Juergen Graefe

Juergen Graefe 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: 5636724
    Abstract: The object of a device for transferring a transport object between two end positions is to exclude negative influences on dependability and clean room conditions, also in lengthy transport paths, while ensuring a highly flexible transfer. To control the operation of sensors and actuators at a movable part of a drive serving to transfer, electrical contact between these sensors and actuators and a supply unit located in a stationary part of the drive is effected exclusively in the two end positions. The device is provided in particular for use in the manufacture of semiconductors, e.g., for charging semiconductor processing machines, but is not limited to this field.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: June 10, 1997
    Assignee: Jenoptik Technologie GmbH
    Inventors: Werner Scheler, Juergen Graefe, Andreas Mages, Andreas Birkner, Erich Adler