Patents by Inventor Hans-Dieter Jurischka

Hans-Dieter Jurischka 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).

  • Process for the production of synthetic endless filaments with good crimping properties
    Patent number: 4164838
    Abstract: The invention is related to a process for the stretch-texturing of high-molecular weight linear synthetic endless filaments travelling at speeds of 300 to 1200 meters per minute by continuously guiding the filaments through a delivery zone, a heat-fixing zone, a false-twister and a stretching godet. The endless filaments are passed through a stretching zone S 55 to 180 cm long, defined by the distance between the delivery stage and the stretching godet, the distance between the delivery stage and the false-twister inlet amounting to S-X cm and the distance X between the false-twister outlet and the stretching godet being 5 to 30 cm.
    Type: Grant
    Filed: December 6, 1974
    Date of Patent: August 21, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans Bach, Karl-August Heinroth, Hans-Dieter Jurischka, Hans Kaloff, Rudolf J. Klee, Herbert Schmidt
  • Highly elastic crimp yarn
    Patent number: 4030278
    Abstract: Process and apparatus for producing highly elastic crimp yarn by the draw-texturing method using a false-twister, in which the filament speed exceeds 300 m/min and in which setting is carried out at constant filament tension by brief contact of the filament with a heating rail with roughened contact surface and a length of at most 400 mm.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: June 21, 1977
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-August Heinroth, Theo Dietrich, Hans Bach, Hans-Dieter Jurischka