Patents by Inventor Jacques Pouleau

Jacques Pouleau 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).

  • Interferometric sensor and use thereof in an interferometric device
    Patent number: 5032026
    Abstract: Pressure and temperature are sensed with first and second interferometers having beam paths originating at an optical fiber located at a collimating lens focal point. One interferometer includes a deformable membrane having a deformation responsive to the sensed pressure and temperature which cause the membrane position to vary with respect to a face of a glass plate. In the second interferometer the optical path length varies as a function of the sensed temperature. The collimating lens collects optical beams derived from the first and second interferometers and supplies them to the optical fibre. In one embodiment, the interferometers are coaxial and in parallel; in a second embodiment the interferometers are in series.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: July 16, 1991
    Assignee: Societe Nationale Elf Aquitaine Production Tour Elf
    Inventors: Philippe Jouve, Jacques Pouleau, Francois-Marie Robert, Xavier Desforges