Patents by Inventor Siegfried W. Spindler

Siegfried W. Spindler 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).

  • Zip fastener and a process for its manufacture
    Patent number: 4918793
    Abstract: In a zip fastener comprising coupling member rows being formed of one continuous monofilament each, the coupling members of which consist of a folded S-shaped meandering profile, after conducting the according manufacturing process, the folded S-shaped meandering profile forming the coupling members of each coupling member row is connected in a weft thread manner with two strips of textile knitted fabrics forming a carrying tape, and the two strips of textile knitted fabrics forming the carrying tape are areally superimposed on each other with their leading edges being aligned.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: April 24, 1990
    Assignee: Ries GmbH Bekleidungsverschlussfabrik
    Inventor: Siegfried W. Spindler