Patents by Inventor Krum K. Tzvetkov

Krum K. Tzvetkov 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).

  • Program automaton for weaving machines
    Patent number: 4525787
    Abstract: There is provided a program automaton for a weaving machine that includes means for effecting deweaving when there is more than one color in the repeat. The invention includes programmable counter means and a counter-switch. On deweaving, the counter means is decremented until it reaches zero. The counter-switch is then decremented one position while the counter means is reset and rapidly decremented to the programmed limit for the preceeding color in the repeat.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: June 25, 1985
    Assignee: Centralen Savet na Nauchnotechnicheski Sayusi
    Inventor: Krum K. Tzvetkov