Patents by Inventor Louis J. C. Blet

Louis J. C. Blet 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).

  • Patent number: 4920163
    Abstract: A paint for use on surfaces subject to lightning strikes includes a film-forming binder and a pigment, the pigment comprising at least one alkali metal salt or alkaline earth metal salt with a low first ionization potential, of a mono- or polyfunctional organic acid, carbonic acid or a polymer having an acidic group, the pigment being present in an amount sufficient to render the paint ionizable under the action of a strong electric current.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: April 24, 1990
    Assignee: Centre Nationale d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet
  • Patent number: 4655966
    Abstract: The invention relates to a process for the preparation of an antimony oxide-doped tin oxide pigment with a white or off-white color and a surface electrical resistance not exceeding 20 ohms/square, comprising the intimate mixing of tin oxide and antimony oxide, then heating the resultant mixture to a high temperature, in which a proportion of 1.25 to 10 parts by weight of antimony oxide Sb.sub.2 O.sub.3 per 100 parts by weight of tin oxide SnO.sub.2 is mixed and the mixture of Sb.sub.2 O.sub.3 and of SnO.sub.2 is calcined at a temperature in the range from 900.degree. to 950.degree. C.Application for the manufacture of electrically conductive white or colored paints which are useful particularly in aeronautics.
    Type: Grant
    Filed: August 1, 1985
    Date of Patent: April 7, 1987
    Assignee: Centre National d'Etudes Spatiales et Master Peintures
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet, Francoise M. J. B. Guerard
  • Patent number: 4317855
    Abstract: This invention relates to an electrically conductive white coating of the paint type, which has a solar absorption .alpha..sub.S not greater than 0.30, a hemispherical emission factor .epsilon. not less than 0.80, a surface resistance R.sub.S, measured in a vacuum less than 10.sup.-5 torr, not greater than 10.sup.9 ohms/square, and which meets the degasification-pollution requirements, characterized in that the coating comprises (a) a layer which is a good conductor of electricity and (b) a white layer which is a poor conductor of electricity and which is applied on top of layer (a). The coating is for use in the space and aeronautical industries.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: March 2, 1982
    Assignee: Centre National d'Etudes Spatiales
    Inventors: Jean-Claude Guillaumon, Louis J. C. Blet