Patents by Inventor Vladimir Alexandrovich Grigoraschenko

Vladimir Alexandrovich Grigoraschenko 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 impact action
    Patent number: 5749677
    Abstract: The present invention relates to building and to mining, more particularly o an apparatus for impact action designed for trenchless laying of new underground communications and for reconstruction of existing communications, the apparatus comprising a body, a striker with a through central channel, the striker positioned inside the body with the possibility of performing reciprocal movement, a front chamber formed between the body and striker, a rear chamber formed between the body and the striker, an air distribution system comprising channels for the inlet of compressed air into the chambers and channels for the exhaust of spent air from the chambers, an air conduit, and in which in accordance with the invention the air distribution system is provided autonomously for each of the aforesaid chambers.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: May 12, 1998
    Assignee: Institut gornogo dela Sibirskogo otdelenia Rossiiskoi Akademii nauk
    Inventors: Vladimir Alexandrovich Grigoraschenko, Veniamin Viktorovich Kamensky, Vladimir Alexeevich Klimenko, Mikhail Vladimirovich Kurlenya, Vladimir Dmitrievich Plavskih, Anatoly Antonovich Repin, Sergei Konstantinovich Tupitsin, Sergei Jurievich Fetisov
  • Method of making built-in-place reinforced concrete piles
    Patent number: 4063423
    Abstract: Method consisting in forming a borehole in the ground preferably having a diameter smaller than the desired diameter of a pile, compacting a concrete mix poured into the borehole by repeatedly passing a pneumatic mole through the borehole filled with concrete to compact the concrete mix in the peripheral zone of the borehole thereby concurrently expanding the reinforcement.
    Type: Grant
    Filed: May 15, 1975
    Date of Patent: December 20, 1977
    Inventors: Konstantin Stepanovich Gurkov, Nikolai Grigorievich Nazarov, Evgeny Nikolaevich Cherednikov, Vladimir Dmitrievich Plavskikh, Leonid Georgievich Rozhkov, Khaim Berkovich Tkach, Vladimir Alexandrovich Grigoraschenko, Alexandr Dmitrievich Kostylev, Vasily Georgievich Davydov, Valentin Alexeevich Zuev