Patents Assigned to Brunckner Maschinenbau GmbH
  • Method of and machine for controlling the nip of the rolls of a calender as an endless planar web is continuously passed through the nip
    Patent number: 6261487
    Abstract: In order to control and optimize, without stopping production, bowing in the outer wall of a calender roll in which bowing is produced by the action of pressure on an incompressible liquid enclosed in the roll, the invention proposes that, based on error signals generated from continuous thickness measurements and from at least one other quality characteristic, the temperature of the liquid is controlled and the nip modified to correct for deviations from the correct thickness.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: July 17, 2001
    Assignee: Brunckner Maschinenbau GmbH
    Inventors: Horst Bongaerts, Dietmar Jenke