Patents Assigned to Aktiengesellschaft Gebrueder Loepfe
  • Electronic equipment for monitoring yarn travel on a textile machine
    Patent number: 4031924
    Abstract: The present invention relates to equipment for monitoring the yarn travel on a textile machine, particularly in the shuttle of a weaving loom, comprising a piezoelectrical yarn sensing unit mounted in the shuttle and an electronic receiving circuitry outside the shuttle. The sensing unit transmits yarn travel signals of a frequency which is determined by one of the natural frequencies of the sensing unit, and the electronic receiving circuitry comprises at least one resonant circuit tuned to that natural frequency.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: June 28, 1977
    Assignee: Aktiengesellschaft Gebrueder Loepfe
    Inventors: Rene Domig, Ernst Morf, Erich Loepfe