Patents by Inventor Norbert Nowack

Norbert Nowack 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).

  • Optical fiber draw furnace having a SiC or Silicon Nitride tube
    Patent number: 6658897
    Abstract: An apparatus for drawing a fiber (11), particularly an optical glass fiber, from a heated preform (9), has a tubular heating element (1), which encloses preform (9) at least partly in its longitudinal direction, and an induction coil (4) surrounding tubular heating element (1) at a radial distance. Along an inside surface (19) of the tubular heating element (1) a protective tube (20) is provided, which surrounds fiber (11) and preform (9) at a radial distance. Protective tube (20) reliably prevents burning off of the heating element and thus a deterioration of the properties of the fiber (11).
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: December 9, 2003
    Assignee: Alcatel
    Inventors: Jurgen Berndt, Michael Hoffart, Norbert Nowack
  • Apparatus for drawing a fiber
    Publication number: 20020100297
    Abstract: An apparatus for drawing a fiber (11), particularly an optical glass fiber, from a heated preform (9), has a tubular heating element (1), which encloses preform (9) at least partly in its longitudinal direction, and an induction coil (4) surrounding tubular heating element (1) at a radial distance. Along an inside surface (19) of the tubular heating element (1) a protective tube (20) is provided, which surrounds fiber (11) and preform (9) at a radial distance. Protective tube (20) reliably prevents burning off of the heating element and thus a deterioration of the properties of the fiber (11).
    Type: Application
    Filed: March 26, 2002
    Publication date: August 1, 2002
    Applicant: ALCATEL
    Inventors: Jurgen Berndt, Michael Hoffart, Norbert Nowack