DRILLING BIT

FIELD: mining.SUBSTANCE: invention relates to mining, or more precisely to a drilling tool of impact-rotary action. Drill bit contains the body, the impact surface of the shell and indenter. Indenters that are not peripheral with respect to the center of the impact surface of the shell are located a...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Korneev Viktor Aleksandrovich, Dvornikov Leonid Trofimovich, Zhukov Ivan Alekseevich, Nikitenko Sergej Mikhajlovich
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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