Patents by Inventor Alexandre Buiguez

Alexandre Buiguez 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 and equipment for supplying supercritical CO.sub.2
    Patent number: 4934418
    Abstract: A cylinder (11) provided with a plunger tube (28) contains a mass of supercritical CO.sub.2 containing 2 to 6% of dissolved helium, surmounted by a gaseous sky constituted by helium at a pressure higher than about 135 bars. Supercritical CO.sub.2 can be in this way obtained which contains a few % of helium dissolved by a simple opening of the valve (27) of the cylinder. Application in the cosmetic industry.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: June 19, 1990
    Assignee: Carboxyque Francaise
    Inventors: Alexandre Buiguez, Michel Percy du Sert, Serge Frejaville
  • Method and apparatus for the treatment of work pieces by shot blasting
    Patent number: 4924643
    Abstract: Particles of shot and particles of carbon dioxide ice are simultaneously blasted onto the work piece (6) to be treated. Application in the treatment of the surface of work pieces composed of plastics material or coated with a plastics material.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: May 15, 1990
    Assignee: Carboxyque Francaise
    Inventors: Alexandre Buiguez, Claude Gibot