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2 232 895

(13)

(51)

IPC

(21) (22)

Application

2002134842/03, 2002-12-23

(24)

Start date

2002-12-23

(22)

Actual filing date

2002-12-23

(45)

Published

2004-07-20

(72)

Inventor

Petrichenko V.P.Strel'Tsov V.I.Balashov A.G.Kolesnikov V.I.

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Vserossijskij Nauchno-Issledovatel'Skij Institut Po Osusheniju Mestorozhdenij Poleznykh Iskopaemykh, Zashchite Inzhenernykh Sooruzhenij Ot Obvodnenija, Spetsial'Nym Gornym Rabotam, Geomekhanike, Geofizike, Gidrotekhnike, Geologii I Markshejderskomu Delu

HYDRAULIC DREDGE Russian patent published in 2004 - IPC

Abstract RU 2232895 C1

FIELD: mining industry.

SUBSTANCE: device has headpiece and concentrically placed pipe columns - agent supplying column equipped with packer and rock-destroying means, and pulp-raising column. Upper pipe of agent-supplying column is additionally provided with circular clamping means mounted with capability for sliding along its outer surface made with cut outer surface and placed in cut aperture of drilling device rotor table, and lower pipe of this column is additionally provided with deflector from vertical axis and extender on end of which rock-destroying means is placed.

EFFECT: reliable construction for forming chambers of large diameter.

3 cl, 2 dwg

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RU 2 232 895 C1

Authors

Petrichenko V.P.

Strel'Tsov V.I.

Balashov A.G.

Kolesnikov V.I.

Dates

2004-07-20—Published

2002-12-23—Filed