Patents Assigned to Press & Platindustri AB
  • Method and apparatus for simultaneously riveting
    Patent number: 5414921
    Abstract: Process for riveting together sheet metal, using a riveting tool (1) with a central partially spherical raised portion (8) in its pressing surface, which when pressed against the rivet shaft end (10) causes the rivet shaft to swell radially before a second rivet head is formed of the material in the river shaft.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: May 16, 1995
    Assignee: Press & Platindustri AB
    Inventor: Bo Waldebjer