Patents Assigned to Fetok GmbH
  • Method for rolling out a bar-shaped pre-molding of ceramic material to form a plate
    Patent number: 3931376
    Abstract: A rolling apparatus for ceramic material comprises a smooth upper roll and rough lower roll for rolling a bar-shaped premolding out into a plate. The premolding is arranged to become attached to the upper roll and travel round with it, possibly more than once. When the plate comes into the gap between the rolls for the last time the upper roll is made negative electrically with respect to the lower roll.
    Type: Grant
    Filed: May 6, 1971
    Date of Patent: January 6, 1976
    Assignee: Fetok GmbH
    Inventor: Jochen Hartmann