Patents by Inventor Felix Marny

Felix Marny 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 of and an apparatus for measuring the adsorption and the desorption of a gas adsorbed by a solid sample and the use thereof
    Patent number: 5239482
    Abstract: For measuring the adsorption and desorption of a gas adsorbed by a solid sample, a gas pressure drop during the adsorption phase or a gas pressure increase during the desorption phase is programmed in the reservoir circuit 1 from 0.1 to 0.7 Pa per minute by at least one regulating valve V.sub.P1 having a proportional opening, in order to transfer a substantially constant flow of gas to the sample and from the sample to the reservoir, the gas pressure being measured periodically in the measuring circuit by pressure sensors. By a microprocessor, the isotherm of adsorption and desorption is determined based on the volume of the reservoir circuit, the quantity of gas transferred, the gas pressure in the measuring circuit, and the volume of the measuring circuit. The system measures the adsorption-desorption isotherms of a gas from a solid.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: August 24, 1993
    Assignee: Institut Francais du Petrole
    Inventors: Hubert Ajot, Jean F. Joly, Dominique A. Garnier, Felix Marny, Francis Raatz, Colette Russmann