Patents by Inventor Nikolai N. Dubrovsky

Nikolai N. Dubrovsky 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: 4421594
    Abstract: Disclosed is a method of producing granulated products from a suspension, which comprises in general the steps of spraying the suspension in a suspension spraying zone, introducing a heat-carrier in the form of a spiral flow to a zone disposed beneath the sprying zone, drying the suspension by the heat-carrier concurrently and countercurrently therewith and separating simultaneously fine fractions of the dried material by means of the same flow of the heat-carrier, with drawing a spent portion of the same, treating thermally the granules produced by drying countercurrently with the aforesaid heat-carrier upon their moving downward in a spiral to a temperature sufficient to ensure the desired product properties, withdrawing processed granules from the thermal treatment zone.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: December 20, 1983
    Inventors: Viktor L. Bildjukevich, Leonid N. Turovsky, Vyacheslav J. Meleshko, Dmitry T. Yakimovich, Valentina A. Lebedkova, Boris K. Demidovich, Gennady Z. Plavnik, Nikolai N. Dubrovsky, Evgeny A. Proskalovich, Alexandr I. Pivovarov