Patents by Inventor Engelbert Loecher

Engelbert Loecher 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).

  • Yarns, fibres and filaments that can be fibrillated, method and device for their production
    Patent number: 6830809
    Abstract: A splittable yarns, fiber or filaments and a method and device for their production. The yarns, fiber or filaments includes at least two elementary filaments of a first polymer A and each second elementary filament is sheathed with a second polymer B.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: December 14, 2004
    Assignee: Carl Freudenberg KG
    Inventors: Engelbert Loecher, Helmut Leiner, Robert Groten, Georges Riboulet
  • Yarns, fibres and filaments that can be fibrillated, method and device for their production
    Publication number: 20040104116
    Abstract: The invention relates to yarns, fibres or filaments that can be fibrillated and to a method and device for their production. According to the invention, said yarns, fibres or filaments consist of at least two elementary filaments of a polymer A and each second elementary filament is sheathed with the polymer B.
    Type: Application
    Filed: September 25, 2003
    Publication date: June 3, 2004
    Inventors: Engelbert Loecher, Helmut Leiner, Robert Groten, Georges Riboulet
  • Tufting base for carpets made of a spunbonded fabric, a method of manufacturing the base, and a tufting carpet
    Patent number: 4842915
    Abstract: A spunbonded fabric is described that is made of polyester matrix filaments and a binding component consisting of thermoplastically softenable fibers, filaments or the like, and that is suitable for use as a tufting base. The melting point of the polyester matrix filaments is by at least 90.degree. C. above that of the binding component. In the tufted condition, before the coating of the back, the maximum tensile stretching value of the carpet material is more than 50%.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: June 27, 1989
    Inventors: Ludwig Hartmann, Engelbert Loecher, Ivo Ruzek, Norbert Weber