Patents by Inventor Alexander V. Demin

Alexander V. Demin 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: 5635300
    Abstract: The invention relates to the field of structural materials intended for operation under conditions of thermal loading in oxidizing media and useful in working units and equipment for petroleum, chemical, aircraft, and metallurgy industries. The invention makes it possible to obtain a material having increased strength properties, heat resistant to oxidizers at a temperature over 1100.degree. C. and ensuring a desired serviceability of parts without additional protective coatings under these conditions. This is attained due to producing a material being a composition of two interpenetrating skeletons: carbon fibers and silicon carbide disposed all through the material structure; the silicon carbide skeleton being the result of interaction between the matrix carbon and silicon self-propagating from outside. The process if characterized by a relatively short production cycle associated with singly conducted operations.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: June 3, 1997
    Assignees: NII Grafit Research Institute, Aerospatiale Societe Nationale Industrielle
    Inventors: Valery I. Kostikov, Alexander V. Demin, Sergey A. Kolesnikov, Vasily V. Konokotin, Raisa N. Ponkratova