Patents Assigned to Esab, AB
  • Welding apparatus
    Patent number: 6854632
    Abstract: The invention relates to a welding apparatus comprising a welding unit, a work-table for supporting the workpieces to be welded, and the clamping means for clamping the workpieces to the work-table in the direction towards one another during the welding operation. The welding unit comprises a friction stir welding head and a fusion welding head.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 15, 2005
    Assignee: Esab, AB
    Inventor: Rolf Larsson