Patents by Inventor Manuela Hahn

Manuela Hahn 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 and device for manufacturing an optical fiber
    Patent number: 5545246
    Abstract: A method for manufacturing an optical fiber (11), wherein the fiber (11) is drawn from one end of a preform (9) which is heated to above the glass softening temperature. The preform (9) is surronded by a protective gas (14) whose flow direction corresponds to the fiber drawing direction. The flow of the gas surrounding the preform (9) in the drawing area (10) is stabilized by an additional flushing gas (16).
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: August 13, 1996
    Assignee: Kabel Rheydt Aktiengesellschaft
    Inventors: Hans-J urgen Lysson, Frank Lisse, Manuela Hahn, Hans-Detlef Leppert, Philippe Darbon