Patents by Inventor Antoni Stawinski

Antoni Stawinski 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).

  • Chain quick-connecting link
    Patent number: 4056929
    Abstract: A quick-connecting link is disclosed having two identical half-links. Each half-link has two arms. One arm ends in a stepwise section and the other arm ends in a stepwise recess. An insert member is held by parallel pins between the two recessed ends of the assembled half-links. The assembly is held together by an expanded sleeve which extends through the insert member, and which lies between and secures the parallel pins.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: November 8, 1977
    Assignee: Fabryka Sprzetu i Narzedzi Gorniczych im. Gen. Karola
    Inventors: Eryk Chrobak, Benedykt Natkaniec, Zenon Wasyleczko, Antoni Stawinski, Andrzej Roczek