Patents by Inventor Philippe Bonniau

Philippe Bonniau 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).

  • Reconfigurable multipoint temperature sensor
    Patent number: 5672008
    Abstract: A temperature sensor having a light fiber connecting a light source and a reflectometer. Temperature measurement zones are formed by sensing elements made of shape-memory alloy. The elements exert a stress on the fiber when they are subjected to an increase in temperature due to their memorized state. The change in temperature is detected by the reflectometer.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: September 30, 1997
    Assignee: Thomson-CSF
    Inventors: Philippe Bonniau, Jean Chazelas, Marc Turpin
  • Reconfigurable birefringent fiber-optic sensor with shape-memory alloy elements
    Patent number: 5641955
    Abstract: A fiber-optic sensor composed of elements made of shape-memory alloy which, in one of their memorized shapes, impose a stress on the optical fiber, which stress is easy to locate with an interferometer. The multisensor configuration is thus easily reconfigurable.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: June 24, 1997
    Assignee: Thomson-CSF
    Inventors: Philippe Bonniau, Jean Chazelas, Marc Turpin
  • Device for the airtight closing of a package with fast open-and-shut system
    Patent number: 5487484
    Abstract: A closing device, for airtight closing of a package by use of a removable lid, has a facing lid fixedly joined to the package and springs made of shape memory alloy resting on the lid and the facing lid. The facing lid may be fixedly joined to the package by brackets or by other fixing mechanisms. These fixing mechanisms may include screws or may include a groove and tongue arrangement. The fixing mechanism may also include a ring made of a shape memory alloy forcing a flexible part of the facing plate against the package.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: January 30, 1996
    Assignee: Thomson - CSF
    Inventors: Philippe Bonniau, Jean Chazelas
  • Structure with intrinsic damage control, manufacturing processes and method of use
    Patent number: 5479828
    Abstract: Disclosed is a structure at least partially comprising a composite material, the material being made by means of sheets of fibers embedded in a matrix, the different sheets forming plies of the material, the material comprising intrinsic means for the detection and localization of a mechanical irregularity, these means comprising at least one polarization-maintaining birefrigent optical fiber having a so-called slow axis and a so-called fast axis, embedded in the matrix and describing a known path inside the material, wherein the optical fiber is included inside a casing with an internal diameter that is greater than the external diameter of the fiber.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: January 2, 1996
    Assignee: Thomson-CSF
    Inventors: Philippe Bonniau, Bernard Estang, Bernard Perrier, Jean Chazelas, Jerome Lecuellet
  • Structure with intrinsic damage control, manufacturing processes and method of use
    Patent number: 5309533
    Abstract: A structure which includes a composite material formed of a plurality sheets forming plies. A casing is formed between two of the plurality of sheets forming the composite material, the casing having an internal diameter. Further, an optical fiber is located within the casing and has an external diameter which is less than the internal diameter of the casing, the optical fiber also having a slow axis and a fast axis of propagation.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: May 3, 1994
    Assignee: Thomson-CSF
    Inventors: Philippe Bonniau, Bernard Estang, Bernard Perrier, Jean Chazelas, Jerome Lecuellet