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(19)

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2 509 196

(13)

(51)

IPC

E21B10/02(2006-01-01)

(21) (22)

Application

2012153807/03, 2012-12-13

(24)

Start date

2012-12-13

(22)

Actual filing date

2012-12-13

(45)

Published

2014-03-10

(72)

Inventor

Panin Nikolaj MitrofanovichSorokin Vladimir FedorovichSlutskij Arkadij Il'IchBarashkov Vjacheslav AndreevichKalinichev Vladimir Nikolaevich

(73)

Holder

Panin Nikolaj Mitrofanovich

BORE BIT Russian patent published in 2014 - IPC E21B10/02

Abstract RU 2509196 C1

FIELD: mining.

SUBSTANCE: bore bit comprises an adapter connected with three concentrically installed tubular elements, end surfaces of which are reinforced with rock-breaking elements. The central tubular element is installed with the possibility of axial displacement and made with radial longitudinal slots, where stop pins are placed, which fix it relative to the inner and outer tubular elements. Rock-breaking elements of all tubular elements are installed at different angles to the vertical plane.

EFFECT: higher efficiency of crown operation.

3 cl, 3 dwg

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RU 2 509 196 C1

Authors

Panin Nikolaj Mitrofanovich

Sorokin Vladimir Fedorovich

Slutskij Arkadij Il'Ich

Barashkov Vjacheslav Andreevich

Kalinichev Vladimir Nikolaevich

Dates

2014-03-10—Published

2012-12-13—Filed