Patents by Inventor Gennady Alexandrovich Kravetkii

Gennady Alexandrovich Kravetkii 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).

  • Anti-oxidation protection of carbon-based materials
    Patent number: 5660880
    Abstract: The invention relates to a process for obtaining refractory antioxidative coatings on carbon-based materials and articles operating in an oxidizing environment at temperatures of up to 2000.degree. C. under thermal cycling and high-speed gas stream conditions. The process comprises the heat-treatment of the surface to be protected in silicon vapors and is characterized in that prior to said silicon vapor treatment, the surface to be protected is covered with a layer of the composition consisting of HfB.sub.2 +C powdery filler and a carboxymethyl cellulose-based binder, followed by drying under normal conditions till it is completely dry. The process is intended for oxidation protection of structural elements and articles in metallurgy, aircraft, and other industries.
    Type: Grant
    Filed: June 19, 1995
    Date of Patent: August 26, 1997
    Assignees: Aerospatiale Societe Nationale Industrielle, Nii, Grafit Research Institute
    Inventors: Valeriya Veniaminovna Rodionova, Gennady Alexandrovich Kravetkii, Nadezhda Miklailovna Schestakova, Andrey Vasiljevich Kuznetzov, Valery Ivanovich Kostikov, Alexander Victorovich Demin