Patents by Inventor Max Fierz

Max Fierz 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).

  • Breechblock for automatic firing weapon
    Patent number: 3969983
    Abstract: A breechblock or breechblock arrangement for an automatic firing weapon with a breechblock carrier in which there is rotatably and axially displaceably mounted a substantially cylindrical breechblock body, a control bolt arranged transversely with respect to the breechblock body axis and which penetrates through the breechblock body. Each end of the control bolt is surrounded by a sleeve, both of the sleeves are rotatably mounted in a bore of the breechblock body and penetrate into the control grooves of the breechblock carrier, and holding means or elements fastened to the control bolt to secure the sleeves against axial displacement.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: July 20, 1976
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle
    Inventors: Jurg Zellweger, Max Fierz