Patents Assigned to Gebrueder Hoffmann AG
  • Strengthened can bodies of thin-walled metal
    Patent number: 4512490
    Abstract: A can formed of a thin-walled material, especially sheet metal or metal plate, whose can body is provided with beads extending essentially in axial direction and circumferential direction for the purpose of increasing the strength of the can bodies. In particular, these are provided primary beads extending in a first direction, and protuberances or raised portions forming auxiliary beads extending essentially perpendicular to the primary beads flow into or continuously merge with the primary beads.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: April 23, 1985
    Assignees: Cantec, Inc., Gebrueder Hoffmann AG
    Inventors: Siegfried Frei, Jakob Koch