Patents by Inventor Karl Nettelnstroth

Karl Nettelnstroth 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 producing filling material for three-dimensionally shaped textile structures
    Patent number: 5382153
    Abstract: Apparatus for producing filling material includes guide structure wherein a tow of filling and binding fiber is continuously guided through a heating zone in which the binding fiber becomes fused to the filling fiber at least at the surface of the tow, the tow is then continuously guided through a cooling zone in which at least a surface-consolidated tow is formed, and the consolidated tow is then continuously guided into a heated cutting means and cut and fused into tufts.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: January 17, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Karl Nettelnstroth