Patents Assigned to Irga S.p.A.
  • Coupling interposed between the rolls of a widener roller for sheet materials
    Patent number: 4869413
    Abstract: The coupling interposed between the rolls of a widener roller for sheet materials comprises a couple of mutually opposite ring-shaped flanges haveing an "L"-shaped cross-section. Each ring-shaped flange is composed by a first metal ring, and a second metal ring. The first metal rings are bonded to the inner surfaces of the edges of a couple of adjacent rolls which, together with other rolls, form the widener roller, and between the second metal rings a ring-shaped element of a flexible material is interposed.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: September 26, 1989
    Assignee: Irga S.p.A.
    Inventor: Cesare De Lucchi