Patents by Inventor Alain Barreau

Alain Barreau 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).

  • Process for producing cold operated with phase separation
    Patent number: 4420946
    Abstract: Cold is produced in a phase separation cycle comprising the steps of (a) compressing a refrigerant fluid and dissolving it in a solvent, (b) cooling resultant solution to form two distinct liquid phases, (c) separating the liquid phases, (d) recycling the heavy phase, (e) expanding and vaporizing the light phase to produce cold, and (f) recycling the vaporized light phase. A portion of the cold produced in step (e) is used to cool the solution from step (a), and another portion is used to cool an external medium.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: December 20, 1983
    Assignee: Institut Francais du Petrole
    Inventors: Alexandre Rojey, Joseph Larue, Alain Barreau