Patents by Inventor Vladimir N. Sergeev

Vladimir N. Sergeev 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).

  • Patent number: 5499900
    Abstract: A vortex compressor for compressing a fluid and having an annular working channel into which the fluid is introduced and compressed before being discharged through an outlet of the channel. A two-piece stripper seal is arranged in the channel and has a first radially inward member and a second radially outward member, the stripper seal members and the inlet and outlet being respectively circumferentially offset from each other. The outward member being closer to the outlet and the inward member being closer to the inlet. The stripper seal has an orifice for fluid removal so that fluid introduced into the inlet of the channel is compressed and emitted from the outlet and the orifice.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: March 19, 1996
    Assignee: Joint Stock Company En & Fi
    Inventors: Vladimir N. Khmara, Ljudmila N. Belotelova, Vladimir N. Sergeev