Patents by Inventor Valentin N. Ardyshev

Valentin N. Ardyshev 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: 4181484
    Abstract: Apparatus for building underground pipelines by forming a casing in a hole from a forming material which is compacted in the direction from the center of the hole towards its walls. The hole is first filled with the forming material throughout its cross-sectional area and then the material is compacted in the direction towards the walls of the hole. Compaction is effected by a device comprising a rod-shaped body adapted for moving through the hole, the front end of the body being provided with a system of radial ribs.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: January 1, 1980
    Inventors: Alexandr D. Kostylev, Konstantin S. Gurkov, Vladimir D. Plavskikh, Vladimir V. Klimashko, Leonid G. Rozhkov, Vladimir A. Grigoraschenko, Vasily V. Filippov, Lazar M. Lipovetsky, Valentin N. Ardyshev, Khaim B. Tkach
  • Patent number: 4088720
    Abstract: A method of building underground pipelines by forming a casing in a hole from a forming material which is compacted in the direction from the center of the hole toward its walls. The hole is first filled with the forming material throughout its cross-sectional area and then the material is compacted in the direction towards the walls of the hole. Compaction is effected by a device comprising a rod-shaped body adapted for moving through the hole, the front end of the body being provided with a system of radial ribs.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: May 9, 1978
    Inventors: Alexandr D. Kostvlev, Konstantin S. Gurkov, Vladimir D. Plavskikh, Vladimir V. Klimashko, Leonid G. Rozhkov, Vladimir A. Grigoraschenko, Vasily V. Filippov, Lazar M. Lipovetsky, Valentin N. Ardyshev, Khaim B. Tkach