Patents by Inventor Karl-Heinz Seifer

Karl-Heinz Seifer 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).

  • Device for forming a doup fabric edge
    Patent number: 5857495
    Abstract: The device for forming a fabric edge from two doup ends and one stationary thread comprises three guides for the doup ends and the stationary thread. The doup ends are twisted by the device after every second weft thread insertion. The thread guides for the doup ends and the thread guide for the stationary thread are arranged to pivot towards each other to form a shed between the doup ends on the one hand and the stationary thread on the other hand. The thread guides take the form of two needles to guide the doup ends and one needle for the stationary thread The two needles for the doup ends are parallel and spaced apart through a rotary support in such a way that the needle for the stationary thread can penetrate between the two needles for the doup ends.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: January 12, 1999
    Assignee: Klocker-Entwicklungs-GmbH
    Inventors: Christoph Heinrich Oswald Schwemmlein, Werner Bernhard Wanning, Karl-Heinz Seifer