Patents by Inventor Nikolai Pavlovich Fetisenko

Nikolai Pavlovich Fetisenko 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 positioning a working implement in a borehole
    Patent number: 3993127
    Abstract: An apparatus is intended for drilling inclined boreholes with high degree of accuracy.The apparatus comprises a working implement having an electric drill and a deep compass with selsyn type sensors whose output signals carry the information on the position of the electric drill in the borehole.Means for controlling the position of the working implement is connected to said sensors and generates a signal in accordance with deviation of the output signals of said sensors from preset values.The output signal from said control means acts upon an actuator of the working implement to position it along a predetermined path.
    Type: Grant
    Filed: August 8, 1974
    Date of Patent: November 23, 1976
    Inventors: Viktor Gavrilovich Chepelev, Nikolai Nikolaevich Grinchenko, Jury Moiseevich Goldshtein, David Leonidovich Shvarts, Nikolai Pavlovich Fetisenko, Vladimir Nikolaevich Grinchenko