Patents Assigned to Papeteries et Cartonneries Lacaux Freres
  • Fluted roll for a corrugated board manufacturing machine
    Patent number: 4917664
    Abstract: A roll (16) for a corrugated board manufacturing machine (10) comprises a shell (32) defining an inner suction chamber (56) permanently connected to a source of low pressure. A series of radial suction apertures (60) open onto the peripheral surface (58) of the shell. According to the invention, the roll comprises a series of axial ducts (80) provided in the body of the shell (32) in which permanently circulates a heat-carrying fluid for heating the shell.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: April 17, 1990
    Assignee: Papeteries et Cartonneries Lacaux Freres
    Inventor: Herve Lacaux