Patents by Inventor Frederic Andrieu

Frederic Andrieu 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).

  • Method and device for low-temperature cooling/liquefaction
    Patent number: 10690406
    Abstract: The invention relates to a method for low-temperature cooling/liquefaction of a working fluid, in particular a working fluid including helium or consisting of pure helium by means of a refrigerator/liquefier that includes a working circuit provided with a compressor station and a cold box. The refrigerator/liquefier subjects the working gas within the working circuit to a cycle that includes, in series: compressing the working fluid within the compressor station, cooling and decompressing the working fluid in the cold box, and heating the working fluid with a view to the return thereof to the compressor station. The compressor station includes one or more compression levels, each one using one or more compressors mounted on landings.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: June 23, 2020
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Jean-Marc Bernhardt, Frederic Andrieu, Franck Delcayre, Fabien Durand, Veronique Grabie
  • Method and Device for Low-Temperature Cooling/Liquefaction
    Publication number: 20120279239
    Abstract: The invention relates to a method for low-temperature cooling/liquefaction of a working fluid, in particular a working fluid including helium or consisting of pure helium by means of a refrigerator/liquefier that includes a working circuit provided with a compressor station and a cold box. The refrigerator/liquefier subjects the working gas within the working circuit to a cycle that includes, in series: compressing the working fluid within the compressor station, cooling and decompressing the working fluid in the cold box, and heating the working fluid with a view to the return thereof to the compressor station. The compressor station includes one or more compression levels, each one using one or more compressors mounted on landings.
    Type: Application
    Filed: November 4, 2010
    Publication date: November 8, 2012
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L 'Exploitation Des Procedes Georges Claude
    Inventors: Jean-Marc Bernhardt, Frederic Andrieu, Franck Delcayre, Fabien Durand, Veronique Grabie