Patents by Inventor Jozef Stawski

Jozef Stawski 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 and apparatus for forming cross ribbed pipes
    Patent number: 4153982
    Abstract: A method and apparatus of forming ribbed pipes, after an initial pipe resssing in which bending of the rib of the plane perpendicular to the rolled pipe axis takes place, and straightening of the rib thenafter. Then on duplex metal pipes, the outside pipe is additionally compressed to the core pipe.A tool for performing the aforementioned is equipped with a disk section for bending the rib, it is formed of a thrust disk and a straightening disk. When rolling a duplex metal pipe at least one compressing disk is placed therebetween.
    Type: Grant
    Filed: January 18, 1978
    Date of Patent: May 15, 1979
    Assignee: Zaklad Doswiadczaln przy Zakladach Urzadzen Chemicznych "Metalchem"
    Inventors: Janusz Przybyla, Zygmunt Gozdziewicz, Jozef Stawski, Jozef Pieczyk, Andrzej Szal, Pawel Bodynek, Andrzej Maczynski