Patents by Inventor Winfried Burkhard

Winfried Burkhard 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: 5355732
    Abstract: A vibrator includes a vibrating table; a plurality of driven unbalanced shafts disposed within the vibrating table and arranged in pairs; and a plurality of unbalanced bodies. A separate unbalanced body is connected to each unbalanced shaft. The unbalanced bodies can assume various vibrating frequencies and angular positions. An adjustment device varies the vibrating frequencies and angular positions of the unbalanced bodies relative to one another. Each shaft is driven by a separate motor; the motors are adapted to rotate in synchronism with one another at a predetermined rotational speed. The adjustment device includes an electronic controller for regulating each of the motors.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: October 18, 1994
    Assignee: Hess Maschinenfabrik GmbH & Co. KG
    Inventors: Manfred Anderl, Gerhard Bogun, Winfried Burkhard