Patents by Inventor Hans J. Profe

Hans J. Profe 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).

  • Method for the needling of material webs
    Patent number: 5533242
    Abstract: The material web is guided at a predetermined speed over a plurality of needle rollers rotating about their longitudinal axis and arranged transversely to the direction of movement of the material web. The material web covers part of the surface of each of the needle rollers. The circumferential speed of the needle rollers is set relative to the speed of the material web in such a way that the desired amount of needling, with adjustable longitudinal stretching, is obtained.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: July 9, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hans J. Profe