Patents by Inventor Pierre Destruel

Pierre Destruel 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 for production of scintillating optical fibers and optical fibers obtained
    Patent number: 5121462
    Abstract: A process for producing scintillating optical fibres consisting in dissolving in a monomer having aromatic cycles, in particular vinyltoluene or styrene, 1-phenyl-3-mesityl-2-pyrazolin (PMP) doping molecules and a chain transfer agent, especially glycoldimercapto acetate, in heating the mixture so as to cause it to polymerize and to effect the final sheathing and stretching of the polymer so as to produce the optical fibres. The process of the invention enables fibres to be obtained which have a very small diameter (in the region of 30 to 50 microns) with a reduced molar extinction in a proportion exceeding 100 in relation to conventional scintillating fibres; it also totally suppresses diaphotic phenomena when the fibres are arranged to form a beam.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: June 9, 1992
    Assignees: Centre National de la Recherche Scientifique, Organisation Europeene pour la Rechesche Nucleaire
    Inventors: Jean-Paul Fabre, Heinrich Leutz, Pierre Destruel, Jean Farenc, Michel Taufer, Didier Puertolas