Patents Assigned to Boelter Industries, Inc.
  • Corrugated material
    Patent number: 4286006
    Abstract: A corrugated material suitable for packaging applications is disclosed, in which a sheet of very flexible material having a high resistance to tearing and stretching is bonded to the flutes of a sheet of single faced corrugated board, resulting in a structure which is rollable in the direction of the flexible substrate, and which is substantially rigid when a force is applied to roll it towards the facing of the single faced corrugated board.
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: August 25, 1981
    Assignee: Boelter Industries, Inc.
    Inventor: Lester B. Boelter