Patents by Inventor Vladimir Petrovich Loginov

Vladimir Petrovich Loginov 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).

  • Method and device real time non-destructive determination of residual stresses in objects by the optical holographic interferometry technique
    Patent number: 6628399
    Abstract: This invention relates to a method and device for non-destructive testing of details, machine units and mechanisms, various materials, and in particular, to a method and device for non-destructive determination of residual stresses which are based on the optical holographic interferometry technique. First, a hologram of the investigation area of the object in its initial state is registered. Then the release of the residual stresses in an investigation point in the investigation area is performed by exposing the surface of the object to a high-current electric pulse with rectangular shape. Finally, an interferogram of the exact same area of the object is made, and the residual stresses at the investigation area are determined from the shape and size of the fringes in the interferogram.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: September 30, 2003
    Assignee: HoloTech a.s.
    Inventors: John Petter Fjeldstad, Irina Evgenievna Fjeldstad, Leonid Mikhailovich Lobanov, Vjacheslav Avtonomovich Pivtorak, Nikolay Georgievich Kuvshinsky, Sergey Gavrilovich Andrushchenko, Vladimir Petrovich Kushniruk, Valeriy Aleksandrovich Pavlov, Vladimir Petrovich Loginov, Peter Dmitrievich Krotenko