Patents by Inventor Hansjorg Rutz

Hansjorg Rutz 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 regulating the draw of a drawing unit
    Patent number: 5428870
    Abstract: A drawing unit contains two drawing zones, one of which is variable and driven by two motors. The desired draw is set by means of a control of the speed of one of the motors, preferably of the motor for the predrawing zone. This control of the speed is carried out by way of a draw correction value which is calculated from the deviation between the desired draw and the actual draw calculated from the speed of the fibre sliver at the entrance and at the exit of the drawing unit. This draw regulation allows a rapid reaction to fluctuations in the draw, simple correcting measures and drift-free operation.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: July 4, 1995
    Assignee: Zellweger Luwa AG
    Inventors: Hansjorg Rutz, Francois Baechler