Patents by Inventor Alexandr Sergeevich Mamvriisky

Alexandr Sergeevich Mamvriisky 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 controlling the density of a plugging fluid
    Patent number: 4103351
    Abstract: An apparatus for controlling the density of a plugging fluid including means for shaping the jet of the carrier liquid into a flat jet and rotating the jet about its longitudinal axis thereof in the area of mixing a dry cementation material.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: July 25, 1978
    Inventors: Alexandr Sergeevich Mamvriisky, Alexandr Mikhailovich Lapchenko
  • Method of controlling the density of a plugging fluid
    Patent number: 4027860
    Abstract: A method of controlling the density of a plugging fluid including shaping the jet of the carrier liquid into a flat jet and rotating this jet about the longitudinal axis thereof in the area of mixing thereof with a dry cementation material. The angle at which the flat jet intersects in the transverse direction the body of the dry material defines the effective material-engaging area and the density of the fluid obtained.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: June 7, 1977
    Inventors: Alexandr Sergeevich Mamvriisky, Alexandr Mikhailovich Lapchenko