Patents by Inventor Jury Pavlovich Shevnin

Jury Pavlovich Shevnin 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).

  • Zirconium-based alloy elements used in nuclear reactor cores
    Patent number: 6776957
    Abstract: A zirconium-based alloy for the components of the active core of nuclear reactors comprises (on a weight percent basis): niobium, 0.5-3.0; iron, 0.005-0.5; oxygen, 0.03-0.2; carbon, 0.001-0.04; silicon, 0.002-0.1; nickel, 0.003-0.02; zirconium being the balance; the alloy structure is characterized by an &agr;-solid solution and the &bgr; Nb-phase particles sized below 0.1 &mgr;m and having the niobium content of from 60 to 95%. The alloy may further comprise particles of intermetallics Zr—Fe—Nb with the Fe/Nb ratio of 0.05-0.2. The alloy structure may also be characterized by an oxygen-hardened &agr;-solid solution and by the &bgr; Nb-phase particles, and may further comprise particles of intermetallics Zr—Fe—Nb sized below 0.3 &mgr;m.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 17, 2004
    Assignees: The Federal State Unitarian Enterprise AA, JSC TVEL
    Inventors: Antonina Vasilievna Nikulina, Pavel Vasilievich Shebaldov, Vyacheslav Nikolaevich Shishov, Mikhail Mikhailovich Peregud, Lidiya Efimovna Ageenkova, Vladimir Vladimirovich Rozhdestvensky, Mikhail Ivanovich Solonin, Yury Konstantinovich Bibilashvili, Petr Ivanovich Lavrenjuk, Anatoly Frantsevich Lositsky, Nikolai Alexeevich Ganza, Nikolai Vasilevich Kuzmenko, Vladimir Andreevich Kotrekhov, Jury Pavlovich Shevnin, Vladimir Andreevich Markelov
  • Method of manufacturing zirconium alloy tubes
    Patent number: 6368429
    Abstract: The present invention relates to a method for producing tubing products from binary and multicomponent zircon alloys, consisting in obtaining from an ingot previously submitted to a beta distortion process p source preparation, hot forming said source preparation at the subsistence temperature of zirconium alpha+beta to get a tubular blank hardenning the latter at a temperature higher by 30 to 60° to the temperature at which the alloy passes from an intermediary state zirconium alpha+beta to the beta state of zirconium, mechanically processing, following by a tempering process at the subsistence temperature of alpha zirconium until the finished product is obtained, the cold distortion of the tubular product being effected with the following global stretching: &mgr;&Sgr;>100 for the finished products and &mgr;&Sgr;<50 for the TREX or SUPER TREX-type semi-finished tubular products, whereby at the first stage of the cold distortion the stretching &mgr;<2.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: April 9, 2002
    Assignee: Joint Stock Company “Chepetsky Mechanical Plan”
    Inventors: Sergei Jurievich Zavodchikov, Elena Nikolaevna Aktuganova, Oleg Viktorovich Bocharov, Viktor Fedorovich Bukhovtsev, Vladimir Andreevich Kotrekhov, Anatoly Frantsevich Lositsky, Jury Pavlovich Shevnin, Antonina Vasilievna Nikulina, Vladimir Fedorovich Seliverstov