Patents by Inventor Leonid G. Puzrin

Leonid G. Puzrin 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: 4886203
    Abstract: A method of brazing of an outer carbon steel shell to an inner stainless steel shell, in which a stainless steel sheet material of the inner shell is rolled up with an overlap and arranged with a clearance inside the outer shell, braze material is placed in the clearance, walls of the rolled sheet material of the inner shell are forced to the inner surface of the outer shell, longitudinal edges of the sheet material of the inner shell are weld-joined to form the inner shell, air is evacuated from the clearance, and ends of the outer and inner shells are joined by circular vacuum-tight corner welds, one leg of which extends radially and has a length equal to at least one thickness of the inner shell, whereas the length of the other leg, which extends longitudinally, is equal to at least twice the thickness of the wall of the inner shell and said inner and outer shells are brazed in a furnace forming after cooling a bimetallic cylindrical article.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: December 12, 1989
    Inventors: Leonid G. Puzrin, Miron G. Atroshenko, Vladimir L. Yaremenko, Jury Y. Ischenko, Pavel S. Nefedov, Ivan G. Pescherin, Ilya P. Serebryanik, Evgeny I. Polev
  • Patent number: 4775091
    Abstract: A method of manufacturing the adapter of a multipole slab includes assembling simultaneously a stack of alternating plates of magnetic steel and non-magnetic steel, a solder and a thin-wall steel container of which the walls sealingly enclose the stack of the plates and the solder. Then the container with the stacked plates and solder therein is heated to a soldering temperature, and subsequently cooled. Then the walls of the container adjoining the edges of the stacked plates are removed.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: October 4, 1988
    Assignee: Institut Elektrosvarki Imeni E.O. Patona Akademii Nauk Ukrainskoi
    Inventors: Leonid G. Puzrin, Miron G. Atroshenko, Vladimir L. Yaremenko, Arkady Y. Vernikov, Pavel S. Menaker, Nikolai F. Bocharov, Nikolai P. Krylov
  • Patent number: 4133473
    Abstract: Disclosure is made of a method for brazing ferromagnetic materials whereby a metalloceramic braze, containing a ferromagnetic refractory component and a fusible component the melting point of which is lower than the Curie point for the refractory component, is placed in the gap between the materials to be joined. In the gap a magnetic field is created whose lines of force cross the gap and whose intensity is adequate enough to retain within the gap, the ferromagnetic refractory component in the process of brazing during the melting of the fusible component. The zone of joining the materials is heated to the temperature of brazing and then cooled. It is proposed also to use a metalloceramic braze, containing an alloy based on Cu--Co, consisting of 50-90% by weight of Cu, and a Cu-Mn-Ni alloy, containing 50-66% by weight of Cu, 24-34% by weight of Mn, and 2-16% by weight of Ni.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: January 9, 1979
    Inventors: Vladislav D. Tabelev, Leonid G. Puzrin, Vladimir M. Kaschenko, Vyacheslav A. Beletsky, Valentin A. Blanin