Patents by Inventor Vladilen A. Galusztainc

Vladilen A. Galusztainc 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).

  • Packer for separation of zones in a well bore
    Patent number: 4499947
    Abstract: The invention relates to a packer for separation of zones behind casing in a well bore. It comprises a casing string serving as mandrel for the packer, an expandable packing element and first and second sleeves tightly fixed to the peripheries of the packing element, wherein the first sleeve is sealed and movable in respect of the casing string and the second sleeve is tightly fixed to the casing string.According to the improvement in this invention, a sleeve plug slides on and is sealed against the casing string and has a thicker upper part and a thinner lower part, the upper part is slidingly arranged at least partially between the casing and the collar and is sealed against both of them, the lower part is slidingly arranged at least partially between the casing and the packing element. The first sleeve slides tightly on the sleeve plug. A non-return valve in the casing connects the inside and the outside of the casing at the packing element.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: February 19, 1985
    Assignees: Magyar Szenhidrogenipari Kutatofejleszto Intezet, Vsesojuzny Nauchno-Issledovatelsky Institut Burovoi Technici
    Inventors: Istvan Zsoka, Laszlo Madar, Anatoly A. Cubin, Albert A. Gaivoronsky, Lev H. Farukshin, Piotr A. Morzsic, Aleksandr I. Lisov, Vladilen A. Galusztainc