Patents by Inventor Hamadi Dridi

Hamadi Dridi 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).

  • Flexible heat insulated fluid conduit
    Patent number: 5722462
    Abstract: A flexible, thermally insulated fluid conduit including a central pipe, which is spirally wrapped with thermal strip insulation under plastic deformation of an amount not exceeding 10%. The insulation is covered with an extruded, continuous casing.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 3, 1998
    Inventors: Hamadi Dridi, Bernard Dewimille
  • Heat insulated line for the transport of fluids
    Patent number: 4921018
    Abstract: A flexible, thermally insulated conduit has a central pipe and a coaxial casing spaced therefrom by annular spacers, defining a series of seated chambers. The chambers are filled with a foam material.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: May 1, 1990
    Assignee: Coflexip
    Inventors: Hamadi Dridi, Bernard Dewimille