Patents by Inventor Klaus Weertz

Klaus Weertz 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).

  • Sewing machine
    Patent number: 4690081
    Abstract: A sewing system is proposed, which has a sewing head with thread tightener, a presser foot, a lower thread roll with a shuttle for guiding the lower thread and transport or transfer means for the further transporting of the workpiece to be processed. Separate drives are associated with these individual elements and these drives are synchronously controlled by a control device.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: September 1, 1987
    Assignee: awfi Arbeitswissenschaffliches Forschungsinstitut GmbH
    Inventors: Wolfgang Castagna, Jochen Krankenhagen, Heinz Ortwein, Klaus Weertz