Patents by Inventor Edgar Sergeevich Dvilis

Edgar Sergeevich Dvilis 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 for compacting powder materials into articles and a mold for implementing the method
    Patent number: 6919041
    Abstract: A method for compacting powder materials into articles comprises placing a powder material in a shaping cavity of a mold, the cavity being defined by active and passive shaping surfaces of one-piece or composite shaping members of the mold; mutually moving the shaping members of the mold along a pressing axis, with the pressing force transferred from the shaping members of the mold to the powder material through the active shaping surfaces. Surfaces of the powder article, parallel to the pressing axis, are formed by the passive shaping surfaces of the one-piece or composite shaping members of the mold. According to the invention, surfaces of the powder article, parallel to the pressing axis, are formed using parts of at least one passive shaping surface, located on the one-piece or composite shaping members split along the pressing axis.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: July 19, 2005
    Assignee: Tomsky Polytekhnichesky Universitet
    Inventors: Edgar Sergeevich Dvilis, Oleg Leonidovich Khasanov, Vitaly Mikhailovich Sokolov, Jury Petrovich Pokholkov
  • Method for compacting powder materials into articles and a mold for implementing the method
    Publication number: 20030124018
    Abstract: A method for compacting powder materials into articles comprises placing a powder material in a shaping cavity of a mold, the cavity being defined by active and passive shaping surfaces of one-piece or composite shaping members of the mold; mutually moving the shaping members of the mold along a pressing axis, with the pressing force transferred from the shaping members of the mold to the powder material through the active shaping surfaces. Surfaces of the powder article, parallel to the pressing axis, are formed by the passive shaping surfaces of the one-piece or composite shaping members of the mold. According to the invention, surfaces of the powder article, parallel to the pressing axis, are formed using parts of at least one passive shaping surface, located on the one-piece or composite shaping members split along the pressing axis.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 3, 2003
    Inventors: Edgar Sergeevich Dvilis, Oleg Leonidovich Khasanov, Vitaly Mikhailovich Sokolov, Jury Petrovich Pokholkov