Patents by Inventor Nikolai A. Sorokin

Nikolai A. Sorokin 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: 4307851
    Abstract: A winder preferably for winding separate metal strips into coils following slitting a wider strip, comprises a power-operated mandrel and pyramidal sleeves successively mounted on this same mandrel for axial movement. On the pyramidal sleeves, mounted for longitudinal movement thereon are segmental members forming a drum section on each pyramidal sleeve for winding a separate strip. The drum sections are interconnected by split rings having a generally U-shaped cross section and mounted on the power-operated mandrel and between adjacent drum sections are drive rings frictionally engaging the end surfaces of the pyramidal sleeves, whereby axial movement of pyramidal sleeves actuated by a mechanism for imparting such movement thereto brings about setting of the apparatus from a retracted to expanded position and vice versa.
    Type: Grant
    Filed: December 12, 1979
    Date of Patent: December 29, 1981
    Inventors: Vladimir I. Dunaevsky, Nikolai A. Sorokin, Viktor M. Levit, Boris M. Zapara, Boris N. Ivanov, Sergei A. Frolov, Vladimir V. Lizenko
  • Patent number: 4297589
    Abstract: A speed governor for a hydroelectric unit includes an error sensing means, an integrator and a gate opening control means connected to the output of the integrator for controlling the degree of opening of the turbine gate apparatus. The governor further comprises a limiter connected between the output of the error sensing means and the input of the integrator for limiting the maximum value of the integrator input signal to a limit value equal to the minimum integrator input signal value which insures the maximum permissible rate of change of the degree of opening of the gate apparatus.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: October 27, 1981
    Inventors: Oleg I. Bashnin, Vasily V. Semenov, Vasily N. Fedorov, Nikolai M. Gorbunov, Evgeny I. Rodionov, Nikolai A. Sorokin
  • Patent number: 4088609
    Abstract: A current-conducting film for electric resistance heaters, consisting of tin dioxide, antimony and boron which are used in the following ratios in percent by weight: tin dioxide 78.0-96.8; antimony, 3.0-20.0 boron, 0.2-2.0. The current conducting film exhibits high thermal stability (up to C. in air), critical specific input of 60 W/cm.sup.2 with strong adhesion to a support and good reproducibility of electrical parameters and physical properties.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: May 9, 1978
    Inventors: Gennady P. Popov, Alexandr K. Mikhailidi, Konstantin A. Lavrentiev, Ivan G. Popov, Viktor V. Zhukov, Nikolai A. Sorokin