Patents Represented by Law Firm Armstrong, Nikaido, Kubovcik, Marmelstein & Murray
  • Method for affixing a metallic tip to a tube made of composite wound material
    Patent number: 5062914
    Abstract: Fibers, which are substantially longitudinally profiled, are wound both around a cylindrical mandrel and a metallic double cone-shaped tip which is engaged onto said mandrel. Said fibers are turned back about studs distributed on a ring which is mounted on a threaded portion extending from the tip, whereupon said longitudinal fibers are binded thereto by means of circumferential fibers before the polymerization process of the tube has been completed. The composite tubes thus produced may be used in off-shore oil prospecting.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: November 5, 1991
    Assignees: Areospatiale, Institut Francais du Petrole
    Inventors: Jean-Francois Fuchs, Marcel Auberon, Pierre Odru, Charles Sparks