Patents by Inventor Bernard Boute

Bernard Boute 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 apparatus for making a solution or dispersion of a hydrosoluble powder
    Patent number: 4725379
    Abstract: The invention concerns a process and an apparatus for making a stable solution or dispersion of a hydrosoluble powder.It is characterized by the simultaneous use of a system for withdrawing powder from a vessel (2) e.g. by means of a gas (4), the dilution of the powder in a carrying gas, the driving with said carrying gas, of the obtained dilution, through a transfer duct (10), the passage of the dilution across an electrostatic field (11) and the solubilization in water of a tank (12).The invention is particularly applicable to the dispersion of polyacrylamides used in the technique of enhanced oil recovery.
    Type: Grant
    Filed: January 8, 1986
    Date of Patent: February 16, 1988
    Assignee: Institut Francais du Petrole
    Inventors: Pierre Baumgartner, Bernard Boute, Pierre Galtier