Patents by Inventor Andre Ciais

Andre Ciais 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).

  • Device and installations for the distillation by thin layer evaporation particularly of hydrocarbons, and process for operating this device
    Patent number: 4584064
    Abstract: The present invention concerns a process for the thin layer evaporation of liquid in which the thin layer to be evaporated is formed by centrifugation.It is characterized in that the pointed part of the said cone is immersed in a reserve of liquid to be evaporated and a communication is established between the external face of the said pointed part of the cone and the internal face of this cone, so that the thin layer subjected to evaporation is formed on the internal face and on the external face of the cone.It concerns a device and installation for the distillation by evaporation in thin layers, particularly for hydrocarbons, and process for operating this device.
    Type: Grant
    Filed: February 10, 1984
    Date of Patent: April 22, 1986
    Assignee: Elf France
    Inventors: Andre Ciais, Gilles Variot
  • Process and device to measure the asphaltene content of petroleum products
    Patent number: 4238451
    Abstract: An apparatus to measure the asphaltene content of petroleum products where a precipitation evaporator for the sample is surmounted by a condensing unit. Immediately below the precipitation evaporator is a filtering unit with a rinsing vapor inlet line for conveying washing liquid from a balloon-flask evaporator. The precipitation evaporator is also equipped with an adjustable flap for preventing fluid from passing to the filtering unit.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: December 9, 1980
    Assignee: Elf Union
    Inventors: Andre Ciais, Andre Lambelin