Patents by Inventor Sergei N. Hrapov

Sergei N. Hrapov 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).

  • In-tube ultrasonic device for wall thickness metering
    Patent number: 7111516
    Abstract: What is claimed is an inspection device for in-tube monitoring of main pipelines by the method of ultrasonic wall thickness metering realized in a device traveling inside the pipeline and performing measurements, acquisition of measurement data and their interpretation. The device comprises a probing pulse generator, an ultrasonic transducer, an amplifier, a comparator with an analog input, a digital timer, a processor and a data storage module, and a controlled reference voltage source connected in series. The output of said reference voltage source is connected to the reference voltage input of the comparator, said reference voltage source being capable of setting at least two different voltages at its output.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: September 26, 2006
    Assignee: NGKS International Corporation
    Inventors: Alexandr J. Bazarov, Alexandr P. Desyatchikov, Nikolai A. Karasev, Sergei P. Kirichenko, Andrei M. Slepov, Anatoly V. Smirnov, Sergei N. Hrapov
  • In-tube ultrasonic device for wall thickness metering
    Publication number: 20030083576
    Abstract: What is claimed is an inspection device for in-tube monitoring of main pipelines by the method of ultrasonic wall thickness metering realized in a device traveling inside the pipeline and performing measurements, acquisition of measurement data and their interpretation. The device comprises a probing pulse generator, an ultrasonic transducer, an amplifier, a comparator with an analog input, a digital timer, a processor and a data storage module, and a controlled reference voltage source connected in series. The output of said reference voltage source is connected to the reference voltage input of the comparator, said reference voltage source being capable of setting at least two different voltages at its output.
    Type: Application
    Filed: July 22, 2002
    Publication date: May 1, 2003
    Inventors: Alexandr J. Bazarov, Alexandr P. Desyatchikov, Nikolai A. Karasev, Sergei P. Kirichenko, Andrei M. Slepov, Anatoly V. Smirnov, Sergei N. Hrapov