Patents by Inventor Paul-Jurgen Hahn

Paul-Jurgen 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).

  • Device for the manufacture of fibers from fusible materials
    Patent number: 4060355
    Abstract: A process and apparatus for the manufacture of fibers from fusible materials and particularly materials of low viscosity. The melt and gaseous flow medium is passed through a Laval-nozzle at a supersonic speed. The nozzle and speed are so selected as to cause an abrupt temperature drop in the flow medium within the nozzle which causes the melt to solidify into fibers.
    Type: Grant
    Filed: October 6, 1976
    Date of Patent: November 29, 1977
    Assignee: Firma VKI-Rheinhold & Mahla AG
    Inventors: Alfred H. Walz, Paul-Jurgen Hahn
  • Process for the manufacture of fibers from fusible materials
    Patent number: 4001357
    Abstract: A process and apparatus for the manufacture of fibers from fusible materials and particularly materials of low viscosity. The melt and gaseous flow medium is passed through a Laval-nozzle at a supersonic speed. The nozzle and speed are so selected as to cause an abrupt temperature drop in the flow medium within the nozzle which causes the melt to solidify into fibers.
    Type: Grant
    Filed: August 1, 1973
    Date of Patent: January 4, 1977
    Assignee: Alfred Walz
    Inventors: Alfred H. Walz, Paul-Jurgen Hahn