Patents by Inventor Lev I. Kalakutsky

Lev I. Kalakutsky 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).

  • Apparatus for measuring the grain-size composition of powders
    Patent number: 4556849
    Abstract: An improved apparatus for measuring the grain-size composition of powders in which a device for transforming a powder into a gaseous flow of individual particles, a charging chamber in which each particle acquires a charge which is proportional to its surface area, a precipitating capacitor in which the flow of charged particles is separated into various fractions in accordance with the charge on the particles, an electrometric device for measuring the total charge of individual fractions are provided, the electrometric device having inductive sensors of charged particles, the number of inductive sensors being equal to the number of fractions, and an amplifier to which are connected all inductive sensors of charged particles. The improvement comprises a plurality of switching devices, one switching device being provided for each sensor.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: December 3, 1985
    Assignee: Vsesojuzny Nauchno-Issledovatelsky Institut Nerudnykh Stroitelnykh Materialov Gidromekhanizatsii
    Inventors: Lev I. Kalakutsky, Vladimir V. Sychenkov, Vladimir B. Vlasov, Adolf V. Dubrovsky, deceased