Patents by Inventor Henri Lamy

Henri Lamy 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).

  • Heating and cooling enclosure for a gas chromatographic column
    Patent number: 4096908
    Abstract: The enclosure comprises an insulating and demountable sealed box unit fitted with a closure lid and placed around a chromatographic column consisting of a metal tube of constant cross-section, said tube being arranged in the form of a helix and supplied with electric heating current which is cut-off for cooling purposes. The heating and cooling air is supplied through a coaxial injection pipe and nozzle, circulated axially through and then around the column within the box unit, then discharged through the bottom wall of a collector casing.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: June 27, 1978
    Assignee: Elf Union
    Inventor: Henri Lamy