Patents by Inventor Guenter Liebner

Guenter Liebner 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).

  • Publication number: 20110083792
    Abstract: The present invention relates to a method for producing a velour rug, comprising the following steps: a) needling of a nonwoven/mali nonwoven on a bristle strip using a needling machine, in the process of which a pile nonwoven/carrier nonwoven is pulled into and partially back out of the bristle strip such that the fibers of the pile nonwoven/carrier nonwoven are located in the plane of the bristle strip, b) separating the nonwoven from the bristle strip by means of a roller brush, c) brushing the pile side prior to cutting the loops, characterized in that, in order to increase the fiber density and enhance the pile stability, an additional nonwoven/mali nonwoven, especially a pile nonwoven/carrier nonwoven, is placed onto the reverse of the nonwoven/mali nonwoven, especially between a first and second needling unit, between steps a) and b).
    Type: Application
    Filed: May 28, 2009
    Publication date: April 14, 2011
    Applicant: ENTWICKLUNGSGESELLSCHAFT FUER AKUSTIK (EFA) MIT BESCHRAENKTER HAFTUNG
    Inventors: Herbert Vollmert, Gabl Brade-Scholz, Norbert Nicolai, Volkmar Schulze, Johannes Jurk, Guenter Liebner