Patents by Inventor Gerhard Nickisch

Gerhard Nickisch 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).

  • Apparatus for melt spinning multicomponent yarns
    Patent number: 5352106
    Abstract: A spinning apparatus for melt spinning thermoplastic multicomponent yarn is disclosed, in which a nozzle pack (22) is joined by bolts with a filter cup (13), with the entire unit being mounted by a thread (21) on a connecting plug (20) of the pump or distributor block (10). The nozzle pack (22) is adapted to produce bicomponent yarns, and the exchange of a single blending plate (37) allows the apparatus to produce different structures of bicomponent filaments. Such spinning apparatus enhance the flexibility of the synthetic fiber producer and reduce the cost for spare parts, since it is necessary to keep available only additional blending plates (37), but not entire nozzle packs (22).
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: October 4, 1994
    Assignee: Barmag AG
    Inventors: Erich Lenk, Ralph Sievering, Gerd Zimmerbeutel, Gerhard Nickisch