Patents by Inventor Klaus Lukoschek

Klaus Lukoschek 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: 4474836
    Abstract: A method and apparatus for producing carpet liners successively applies a pre-coating and a heavy coating material to a carpet band to be treated. The pre-coating material, which contains an activated isocyanate-polyol mixture, is applied to the carpet band at a temperature at which the components of the mixture will not react with each other. A heavy coating thermoplastic material is subsequently applied to the carpet band. The heavy coating is applied at a sufficiently high temperature to cause the components of the pre-coating mixture, which already has been applied to the carpet band, to react with each other and form polyurethane. Accordingly, a pre-coating layer of polyurethane is formed simultaneously with the application of the heavy coating material.
    Type: Grant
    Filed: April 5, 1983
    Date of Patent: October 2, 1984
    Assignee: Chemiegesellschaft Gundernhausen mbh
    Inventors: Klaus Lukoschek, Manfred Schweizer, Hans C. Trautmann