Patents by Inventor Boris V. Kostyrkin

Boris V. Kostyrkin 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 and apparatus for electrohydroblasting of castings
    Patent number: 4606398
    Abstract: A method for electrohydroblasting of castings in a liquid medium with a view to removing core and molding sand, according to which castings are subjected to a series of electrohydraulic shocks and at the same time set in reciprocating motion. The reciprocating frequency of the castings and the length of their stroke are sufficient to produce a flow of liquid in the internal channels of the castings and thus remove core and molding sand therefrom. The method is carried out with the aid of an apparatus which comprises a casting-reciprocating mechanism interacting with an electrode-positioning mechanism so that the movement of the castings is synchronized with that of the electrode.
    Type: Grant
    Filed: August 2, 1984
    Date of Patent: August 19, 1986
    Inventors: Valery V. Prikhodko, Boris V. Kostyrkin, Pavel I. Tsarenko
  • Apparatus for electrohydroblasting trimming of castings
    Patent number: 4493961
    Abstract: An apparatus for electroblasting trimming of castings, in which castings being trimmed are placed in a bath containing a working fluid, the bottom part of the bath narrowing and having a device for removing sludge which comprises a hydraulic elevator installed in the bottom part of the bath and communicating with a tank for settling solid fraction from the working fluid.
    Type: Grant
    Filed: April 13, 1982
    Date of Patent: January 15, 1985
    Assignee: Proektno-Konstructorskoe Bjuro Elektrogidravliki Adademii Nauk Ukrainskoi SSR
    Inventors: Valery V. Prikhodko, Boris V. Kostyrkin
  • Method for electrohydroblasting of castings
    Patent number: 4490180
    Abstract: A method for electrohydroblasting of castings in a liquid medium with a view to removing core and molding sand, according to which castings are subjected to a series of electrohydraulic shocks and at the same time set in reciprocating motion. The reciprocating frequency of the castings and the length of their stroke are sufficient to produce a flow of liquid in the internal channels of the castings and thus remove core and molding sand therefrom. The method is carried out with the aid of an apparatus which comprises a casting-reciprocating mechanism interacting with an electrode-positioning mechanism so that the movement of the castings is synchronized with that of the electrode.
    Type: Grant
    Filed: April 13, 1982
    Date of Patent: December 25, 1984
    Assignee: Proektno-Konstruktorskoe Bjuro Elektrogidravliki Akademii Nauk Ukrainskoi SSR
    Inventors: Valery V. Prikhodko, Boris V. Kostyrkin, Pavel I. Tsarenko