Patents by Inventor Jean P. Tranier

Jean P. Tranier 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 apparatus for gas liquefaction with plural work expansion of feed as refrigerant and air separation cycle embodying the same
    Patent number: 5271231
    Abstract: A method of liquefying a low-boiling gas, in which gas is compressed to a high pressure, is cooled in heat exchange structure and is isenthalpically expanded to condense a portion of the same to liquid. The liquid being separated from residual gas and the residual gas is used to cool the heat exchange structure and is then recycled. A portion of the gas is compressed to an intermediate pressure between the high and low pressures, is isentropically expanded at a first temperature and is used to cool a relatively warm portion of heat exchange structure and is then recycled. A portion of the high pressure gas is isentropically expanded at a second temperature and used to cool a relatively cool portion of the heat exchange structure and then again isentropically expanded at a third temperature to that low pressure and returned through the heat exchange structure to cool the same and is then recycled.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: December 21, 1993
    Assignees: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, Liquid Air Engineering Corporation
    Inventors: Bao Ha, Jean P. Tranier