Patents by Inventor Petr Semrad

Petr Semrad 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 of, and device for, detecting the yarn end on a bobbin
    Patent number: 5699971
    Abstract: A method and device for detecting the yarn end on a bobbin in a textile machine. The textile machine comprises a plurality of operating units situated next to each other and an attending device adapted to travel along the units and to stop at a selected one of the operating units. The attending device includes a selecting device provided with a detecting nozzle having a yarn sucking mouth. The detecting device is displaced into a detecting position in which the mouth of the detecting nozzle lies in the path of possible motion of a central tube of the bobbin. The bobbin begins to move towards the mouth of the detecting nozzle situated in its detecting position onto which the bobbin circumference comes to lie.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: December 23, 1997
    Assignee: Rieter Elitex a.s.
    Inventors: Zdenek Spindler, Vojtech Novotny, Petr Semrad