Patents Assigned to Carnaudemtal Box Inc.
  • Base forming of can bodies
    Patent number: 5984604
    Abstract: Can bodies are formed typically by drawing and wall-ironing a cup, introducing fluid between punch and dies as the cup exits the dies and then forming the desired base profile. The can bodies formed in the present invention are able to be produced from thin hard material such as double reduced steel and/or have stronger base profiles in terms of tighter radii and deeper countersinks than was hitherto possible without risk of splitting.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: November 16, 1999
    Assignee: Carnaudemtal Box Inc.
    Inventor: Neil David McMahon