Patents by Inventor Jozef Dragoun

Jozef Dragoun 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).

  • Arrangement for forming form pieces by point rolling
    Patent number: 4069698
    Abstract: Form pieces, particularly rivet heads are formed by point rolling of an active surface of a forming tool along the formed surface by an arrangement wherein the required motion of the forming tool is composed of two components, both of which are derived from rotating motions around an axis coaxial with the axis of the arrangement.
    Type: Grant
    Filed: January 14, 1976
    Date of Patent: January 24, 1978
    Assignee: VUMA Vyskumny ustav mechanizacie a automatizacie
    Inventor: Jozef Dragoun
  • Method of and apparatus for shaping articles by rolling
    Patent number: 3990285
    Abstract: Different surfaces of articles are shaped by means of a shaping tool. The active surface of the shaping tool is rolled reversibly along the shaped surface with a point contact in the axial plane of the shaped surface, such axial plane turning around the axis of the shaped surface, the amplitude of this reversible relative rolling being selected arbitrarily.
    Type: Grant
    Filed: December 5, 1974
    Date of Patent: November 9, 1976
    Assignee: Vyskumny ustav mechanizacie a automatizacie
    Inventor: Jozef Dragoun