DRILLING DEVICE Russian patent published in 2005 - IPC

Abstract RU 2256057 C1

FIELD: mining industry.

SUBSTANCE: device has mast with hoisting gear, rotor with inserts, swivel with sub, leading pipe with spring-loaded lock, driving sleeve and drilling pipes positioned inside. Sub of swivel is made in form of intermediate leading pipe, connected to driving sleeve of leading pipe telescopically.

EFFECT: higher speed of operation, broader functional capabilities.

5 cl, 1 dwg

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RU 2 256 057 C1

Authors

Kerimov V.A.

Bashkatov A.D.

Kerimov Gennadij Vaidovich

Dates

2005-07-10—Published

2004-03-24—Filed