Patents by Inventor Jacques Behar

Jacques Behar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tube comprising composite layers with different modulii of elasticity
    Patent number: 5499661
    Abstract: A composite material tube, withstanding the internal pressure, and comprising at least two layers of pressure reinforcement fibers, or pressure resistant layers, wound at an angle at least equal in absolute value to 70.degree., with respect to the center axis of the tube. The two layers both undergo radial expansion under an effect of the pressure, with one of these two layers being inside the other. A circumferential modulus of elasticity of the external layer is greater than the circumferential modulus of elasticity of the internal layer.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: March 19, 1996
    Assignees: Institut Francais du Petrole, Aerospatiale
    Inventors: Pierre Odru, Charles Sparks, Marcel Auberon, Jacques Behar