Patents by Inventor Jindrich Cerny

Jindrich Cerny 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).

  • Constant tension regulator of positively unwound flexible material, particularly warp threads in weaving machines
    Patent number: 4058143
    Abstract: A constant tension regulator for controlling the tension of positively unwound flexible material, particularly warp threads in a weaving machine. Means are operatively mounted on the frame of the regulator for sensing changes in tension in the unwinding flexible material. These sensing means output a control movement in accordance with sensed tension in the unwinding flexible material which is translated to a mechanical integrating unit and a proportional adjusting unit, arranged in parallel, which jointly transmit a control variable adjustment to the driving means of the warp beam thereby adjusting its rotary speed in accordance with the sensed tension.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: November 15, 1977
    Assignee: Vyzkumny a vyvojovy ustav Zavodu vseobecneho strojirenstvi
    Inventors: Jindrich Henzl, Jindrich Cerny, Jaromir Malasek