Patents by Inventor Nikolay G. Kuvshinsky

Nikolay G. Kuvshinsky 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 for non-destructive real-time measurements of residual stresses in planar and non-planar objects
    Patent number: 6765677
    Abstract: This invention relates to a method and device for performing non-destructive measurements of residual stresses in an investigation area of an object based on use of optical holographic interferometry technique. The holographic interferometer is divided into a holographic probe which contains means for illuminating the investigation area of the object by coherent light, collecting the coherent light that scatters off this investigation area and means for performing a non-destructive dislocation release pulse of the residual stresses in a small region of the investigation area by exposing the object to an electric high currency, and a holographic camera which contains means for formation, registration, and development of a hologram and for formation of an interferogram of the investigation area of the object.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 20, 2004
    Assignee: Holotech A.S.
    Inventors: John Petter Fjeldstad, Irina Evgenievna Fjeldstad, Leonid Mikhailovich Lobanov, Vjacheslav A. Pivtorak, Galina Ivanovna Tkachuk, Sergey G. Andrushchenko, Irina V. Kijanets, Valeriy A. Pavlov, Nikolay A. Davidenko, Nikolay G. Kuvshinsky