Patents by Inventor Sergei Viktorovich Seleznev

Sergei Viktorovich Seleznev 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).

  • Dew point measurement method and device for carrying out said method
    Patent number: 7350970
    Abstract: The invention relates to measuring engineering. In order to increase accuracy by increasing sensitivity, for the inventive dew point measurement method a light flux polarized in the plane of incidence thereof is used and directed towards the condensation surface of a dielectric cooled element at an angle at which the light flux is not reflected from the condensation surface of the cooled element in the absence of condensate.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: April 1, 2008
    Inventors: Alexandr Mikhailovich Derevyagin, Alexander Sergeevich Fomin, Sergei Viktorovich Seleznev
  • Method of determining dew point and a suitable device
    Patent number: 5920010
    Abstract: The proposed method of determining dew point involves directing the gas under investigation onto a cooled section of an optically transparent body through which a luminous flux is allowed to pass and recording fluctuations in the intensity of the luminous flux, the flow-rate of the gas thus directed onto the cooled section being reduced down to zero while its molecular diffusion is preserved. To limit the flow-rate of the gas impinging on the cooled section (1) and reduce contamination of the optically transparent element, the dew point gauge is provided with a sampling tube (10).
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: July 6, 1999
    Assignee: Alexandr Mikhailovich Derevyagin
    Inventors: Alexandr Mikhailovich Derevyagin, Alexandr Georgievich Gubanov, Andrei Robertovich Stepanov, Sergei Viktorovich Seleznev