Patents Assigned to Societe de Construction des Avions Hurel-Duobis
  • Method of piercing a plate, of any configuration, with a very high perforation density and products thus obtained
    Patent number: 5092715
    Abstract: The invention is directed to a method of forming a large number of holes in a given area. A plurality of tools spaced along X and Y axes are used to form holes simultaneously, and the tools are successively moved in steps to drill more holes.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: March 3, 1992
    Assignee: Societe de Construction des Avions Hurel-Duobis
    Inventors: Patrice J. Theret, Jean-Alain F. Jouan