Patents by Inventor Renato J. Bressan

Renato J. Bressan 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).

  • Controlled spin flow forming
    Patent number: 4781047
    Abstract: A system and apparatus for roll forming to neck-in D&I can ends and replace double necks and triple necks is disclosed. An externally disposed free roll having independently rotatable sections is moved inward and axially against the outside wall of the open end of a rotating trimmed can to form a conical neck at the open end of the cap, the two sections of the roller having different speeds depending upon neck diameters respectively engaged thereby. A spring loaded interior support roller moves under the forming force of the free roll. This is a single operation where the can rotates and the free roll rotates such that a smooth conical necked end and flange are produced.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: November 1, 1988
    Assignee: Ball Corporation
    Inventors: Renato J. Bressan, Andrew Halasz, Lawrence S. Maccherone, Eugen F. Ihly
  • Controlled spin flow forming
    Patent number: 4563887
    Abstract: A system and apparatus for roll forming to neck-in D&I cans ends and replace double necks and triple necks is disclosed. An externally disposed free roll is moved inward and axially against the outside wall of the open end of a trimmed can. A spring loaded interior support roller moves under the forming force of the free roll. This is a single operation where the can rotates and the free roll rotates such that a smooth conical necked end and flange are produced.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: January 14, 1986
    Assignee: American Can Company
    Inventors: Renato J. Bressan, Andrew Halasz, Lawrence S. Maccherone