Patents by Inventor Viktor A. Ignatov

Viktor A. Ignatov 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).

  • Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles
    Patent number: 4374680
    Abstract: A corrosion-resistant weldable martensitic steel essentially consists of carbon 0.06 to 0.10 weight percent, chromium 15.1 to 16.5 weight percent, nickel 3.5 to 4.45 weight percent, silicon 0.10 to 0.60 weight percent, manganese 0.20 to 0.50 weight percent, at least one element selected from the group consisting of niobium 0.25 to 0.40 weight percent and zirconium 0.05 to 0.20 weight percent, at least one element selected from the group consisting of yttrium 0.05 to 0.20 weight percent, cerium 0.05 to 0.15 weight percent and lanthanum 0.05 to 0.15 weight percent, phosphorus not exceeding 0.025 weight percent, sulfur not exceeding 0.02 weight percent, copper not exceeding 0.20 weight percent, the remainder being substantially iron and unavoidable nonferrous impurities. The process for the manufacture of the steel comprises the steps of preparing a molten mass of said composition, pouring the molten mass into a mould and permitting it to solidify therein followed by cooling an ingot produced.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: February 22, 1983
    Inventors: Vladimir G. Azbukin, Jury F. Balandin, Igor V. Gorynin, Lev Y. Gluskin, Jury I. Zvezdin, Alexandr G. Ignatenko, Alexandr N. Krasnov, Rostislav K. Melekhov, Inna S. Osipova, Valery N. Pavlov, Alexandr A. Khokhlov, Ivan A. Stepanov, Alexandr F. Anfimov, Vasily V. Ardentov, Viktor M. Burmakin, Viktor A. Ignatov, Eduard A. Rokhlin, Vladimir V. Zhitkov
  • Corrosion-resistant weldable martensitic stainless steel, process for the manufacture thereof and articles
    Patent number: 4299623
    Abstract: A corrosion-resistant weldable martensitic steel essentially consists of carbon 0.06 to 0.10 weight percent, chromium 15.1 to 16.5 weight percent, nickel 3.5 to 4.45 weight percent, silicon 0.10 to 0.60 weight percent, manganese 0.20 to 0.50 weight percent, at least one element selected from the group consisting of niobium 0.25 to 0.40 weight percent and zirconium 0.05 to 0.20 weight percent, at least one element selected from the group consisting of yttrium 0.05 to 0.20 weight percent, cerium 0.05 to 0.15 weight percent and lanthanum 0.05 to 0.15 weight percent, phosphorus not exceeding 0.025 weight percent, sulfur not exceeding 0.02 weight percent, copper not exceeding 0.20 weight percent, the remainder being substantially iron and unavoidable nonferrous impurities. The process for the manufacture of the steel comprises the steps of preparing a molten mass of said composition, pouring the molten mass into a mould and permitting it to solidify therein followed by cooling an ingot produced.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 10, 1981
    Inventors: Vladimir G. Azbukin, Jury F. Balandin, Igor V. Gorynin, Lev Y. Gluskin, Jury I. Zvezdin, Alexandr G. Ignatenko, Alexandr N. Krasnov, Rostislav K. Melekhov, Inna S. Osipova, Valery N. Pavlov, Alexandr A. Khokhlov, Ivan A. Stepanov, Alexandr F. Anfimov, Vasily V. Ardentov, Viktor M. Burmakin, Viktor A. Ignatov, Eduard A. Rokhlin, Vladimir V. Zhitkov
  • Steel for nuclear applications
    Patent number: 4072509
    Abstract: A steel contains, in percent by weight:Carbon from 0.13 to 0.18Silicon from 0.17 to 0.37Manganese from 0.30 to 0.60Chromium from 1.7 to 2.4Nickel from 1.0 to 1.5Molybdenum from 0.5 to 0.7Vanadium from 0.05 to 0.12Aluminium from 0.01 to 0.035Nitrogen from 0.05 to 0.012Copper from 0.11 to 0.20Arsenic from 0.0035 to 0.0055Iron and impurities-- the balance.This steel is preferable for use in the manufacture of nuclear reactors.
    Type: Grant
    Filed: January 5, 1977
    Date of Patent: February 7, 1978
    Inventors: Nikolai N. Zorev, Anatoly A. Astafiev, Alexandr S. Loboda, Vladimir P. Savukov, Andrei E. Runov, Vladimir A. Belov, Jury V. Sobolev, Valentin V. Sobolev, Nikolai M. Pavlov, Boris E. Paton, Boris I. Medovar, Jury F. Balandin, Igor V. Gorynin, Jury I. Zvezdin, Kuzma M. Ivanov, Viktor A. Ignatov, July G. Emelyanenko