Patents by Inventor Wilhelm F. Hennenberg, deceased

Wilhelm F. Hennenberg, deceased 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: 4220182
    Abstract: A woven stringer tape for a slide fastener is provided with a row of successively interconnected elongated loops secured to an edge of the tape by a plurality of warp threads and a binding weft thread cooperating with the warp threads in firmly retaining the row of loops in place against bending stresses. The binding warp threads are interlaced with the binding weft thread in close proximity to a common plane of upper legs of the successive loops, so that the upper legs inter alia are held in position against the tendency of getting misaligned when subjected to transverse bending stresses.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: September 2, 1980
    Assignee: Yoshida Kogyo K.K.
    Inventors: Friedrich Glindmeyer, Karl Limpens, Wilhelm F. Hennenberg, deceased