Patents by Inventor Francois Camberlein

Francois Camberlein 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 or apparatus for distilling air and application in feeding gas to a steel mill
    Patent number: 5291737
    Abstract: The apparatus is of the type having a double column and a mixing column. The latter is fed at the bottom portion with auxiliary air that is compressed at a pressure different from that of the mean pressure column, and at the top by means of a liquid withdrawn from the bottom of the low pressure column and pumped at the same pressure as the auxiliary air. Impure oxygen is withdrawn at the top of the mixing column as production gas, and substantially pure oxygen is produced at the bottom of the low pressure column.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: March 8, 1994
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude
    Inventors: Francois Camberlein, Jean-Louis Girault, Philippe Mazieres, Jean-Pierre Tranier