Patents Assigned to La Metal Deploye
  • Expanded perforated sheet having integral unexpanded sides and method of manufacturing the same
    Patent number: 4594280
    Abstract: A perforated structure of expanded material, including at least one solid unstretched strip (4) parallel to the direction of expansion and of a length less than the length of the expanded region. The expanded region is formed with a tool that simultaneously cuts or perforates and expands the material.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: June 10, 1986
    Assignee: La Metal Deploye
    Inventors: Claude Coyon, Bernard Bernet