Patents by Inventor Alexandr P. Krivenko

Alexandr P. Krivenko 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).

  • Flame guniting lance
    Patent number: 4386737
    Abstract: A flame guniting lance comprises a water-cooled casing made up of pipes (1 and 2). Arranged concentrically inside the casing are pipes (4) for supplying a mixture of powdered refractory material and fuel, and pipes (3) for supplying oxygen. Each pipe (3 and 4) is respectively fitted with a nozzle (5) for supplying the mixture of refractory material and fuel, and a nozzle (6) for supplying oxygen, the nozzles being arranged in pairs and coaxially in each pair. The outlet cross-section of each nozzle (5) is positioned below the outlet cross-section of each nozzle (6) within a distance of 1 to 5 times the inside diameter of the nozzle (5). The walls of at least one of each pair of the nozzles (5 or 6) are partly or completely other than cylindrical in shape.
    Type: Grant
    Filed: January 29, 1981
    Date of Patent: June 7, 1983
    Inventors: Veniamin V. Antonov, Evgeny D. Shtepa, Alexandr P. Krivenko, Adelaida L. Kurbatova, Ivan R. Vedkalov, Viktor M. Chervonenko, Anatoly A. Yarmal, Semen A. Donskoi, Vladimir A. Korotky, Jury I. Zhavoronkov, Vadim I. Germanov, Alexei S. Kornienko, Pavel A. Kaduba, Anatoly A. Chvilev, Edvin I. Gamalei, Fedor E. Dolzhenkov, Valentin A. Kulichenko, Pavel B. Maikher, Oleg I. Tischenko, Galia A. Atlasova