Patents by Inventor Juergen KUNSTMANN

Juergen KUNSTMANN 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).

  • Heating device for producing carbon fibers
    Patent number: 10337125
    Abstract: A heating device for producing carbon fibers from a thread-shaped fiber starting material, wherein the heating device has a central tubular induction heating element through which the fiber starting material is moved. The tubular induction heating element is surrounded by thermal insulation. At least one mid- to high-frequency induction coil is provided outside the thermal insulation, and an inert gas flows through the central induction heating element, in particular, for carbonizing and/or graphitizing the fiber starting material. For energy optimization, a first and a second tube element is provided on the outer side of the thermal insulation. The elements are made of material that is transparent to the induction field of the mid- to high-frequency induction coil and are spaced apart from one another by an annular gap through which the inert gas flows.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 2, 2019
    Assignees: CLARIANT INTERNATIONAL LTD., LINN HIGH THERM GMBH
    Inventors: Daniel Decker, Michael Woelki, Phillip Schwerdt, Horst Linn, Rudolf Linn, Juergen Kunstmann
  • HEATING DEVICE FOR PRODUCING CARBON FIBERS
    Publication number: 20170073846
    Abstract: A heating device for producing carbon fibers from a thread-shaped fiber starting material, wherein the heating device has a central tubular induction heating element through which the fiber starting material is moved. The tubular induction heating element is surrounded by thermal insulation. At least one mid- to high-frequency induction coil is provided outside the thermal insulation, and an inert gas flows through the central induction heating element, in particular, for carbonizing and/or graphitizing the fiber starting material. For energy optimization, a first and a second tube element is provided on the outer side of the thermal insulation. The elements are made of material that is transparent to the induction field of the mid- to high-frequency induction coil and are spaced apart from one another by an annular gap through which the inert gas flows.
    Type: Application
    Filed: February 27, 2015
    Publication date: March 16, 2017
    Applicants: CLARIANT INTERNATIONAL LTD., Linn High Therm GmbH
    Inventors: Daniel DECKER, Michael WOELKI, Phillip SCHWERDT, Horst LINN, Rudolf LINN, Juergen KUNSTMANN