Patents by Inventor Sergei N. Chumak

Sergei N. Chumak 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).

  • Automatic system for analysis of ground material size
    Patent number: 4770051
    Abstract: An automatic system for analysis of sizes of a ground material includes a sampler for sampling and delivering the ground material in the form of a slurry. A sedimentation of cylinder is provided as is a device for reception of the slurry, its stirring and dosed supply into the sedimentation cylinder. A differential circuit is provided for measuring the mass of the ground material, which did not settle in the sedimentation cylinder as any instant of time during the analysis of the material size including a measuring channel and a correcting channel based on the same LC self-excited oscillator operating in a time sharing mode. An automatic error correction circuit and a data processing and display unit are provided for presenting information on the percentage of solid particles in the sizes being analyzed.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: September 13, 1988
    Assignee: Uralsky filial Vsesojuznogo nauchno-issledovatelskogo i konstruktorskogo, instituta "Tsvetmetavtomatika"
    Inventors: Semen I. Korisch, Sergei N. Chumak, Petr S. Yasenev