Patents by Inventor Vladimir G. Chirskov

Vladimir G. Chirskov 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 removing a welding bulge from resistance welded pipes
    Patent number: 4269552
    Abstract: A welding bulge removing apparatus comprises a ring-shaped carrier adapted to be placed by means of rollers on welded pipes at the weld bulge, and being provided with a circumferential guideway and gear rim. It also comprises motor-operated carriages each having a driving gear wheel and support rollers. Mounted on the carriages are milling cutter units movable to and from the weld bulge. The gear wheel and the support rollers are brought respectively into engagement with the gear rim and the circumferential carrier.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: May 26, 1981
    Inventors: Mikhail R. Unigovsky, Evgeny V. Rulevsky, Georgy A. Arendt, Vladimir G. Chirskov, Julian K. Konovalov, Vasily T. Ivanov, Isaak Y. Nemirovsky, Sergei I. Kuchuk-Yatsenko, Vasily A. Sakharnov, Alexandr B. Kheinis