Patents by Inventor Valeriy Grigorievich Levinson

Valeriy Grigorievich Levinson 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).

  • Method of producing powder materials
    Patent number: 6367722
    Abstract: A method is provided for obtaining fine powders having narrow particle size range from non-conducting solids comprising the steps of: 1) creating an electrostatic charge on particles of a solid mixture formed by mechanical means, 2) grinding the mixture and neutralizing the electrostatic charge during grinding with a potential sufficient to create a corona discharge, 3) separating the powder according to particle size, and 4) collecting the finely ground finished powder product. The method is applicable to the manufacture of high quality cement powders.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 9, 2002
    Inventors: Nicolai Fedorovich Gloukharev, Leonid Petrovich Zarogatskiy, Valeriy Grigorievich Levinson, Vyacheslav Sergevich Morozov