Patents by Inventor Ingo Eiflander

Ingo Eiflander 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 and device for producing polyester yarns
    Patent number: 5965073
    Abstract: Polyester yarn is produced from melt spun filament by prestretching the filaments individually in counterflow with a gaseous medium and then afterstretching the polyester filaments with an individual titer of 1.0 dtex to 7.5 dtex with a stretching ratio of 1:1.5 to 1:1.15 at a temperature of 80.degree. to 250.degree. C. The filaments are collected and then wound up as a yarn at a speed of 5000 to 8000 m/min.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: October 12, 1999
    Assignee: John Brown Deutsche Engineering GmbH
    Inventors: Rudolf Geier, Jurgen Hartig, Ingo Eiflander