Patents by Inventor Raymond Hallot

Raymond Hallot 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).

  • Device and process for the heat insulation of at least one underwater pipe at great depth
    Patent number: 6513577
    Abstract: The present invention relates to a device for the heat insulation of at least one underwater pipe (1) intended to be laid on the sea bed at great depth, comprising an insulating coating surrounding the latter and a protective envelope (3), characterized in that said insulating coating comprises a virtually incompressible liquid/solid phase change material (4) with a melting temperature T0 higher than that T2 of the medium surrounding the pipe in operation and less than that T1 of the effluents circulating in the pipe, and said material (4) preferably being impregnated in an absorbent matrix (2) surrounding the pipe (1), preferably nearest its outer surface, which protective envelope (3) is resistant and deformable and ensures a containment against and about said insulating coating.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: February 4, 2003
    Assignee: Bouygues Offshore
    Inventors: Michel Baylot, Raymond Hallot, Regis Pionetti, Xavier Rocher