ROCK DRILL BIT

FIELD: mining.SUBSTANCE: drill bit comprises legs with inclined pins with shifted in plan axes, installed on them conic rolling cutters with milled, casted or hard-alloy teeth located in parallel or at an angle to the generatrix of the rolling cutter, and flushing assembly. The size of slipping of r...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PANIN NIKOLAJ MITROFANOVICH, JASASHIN VITALIJ ANATOL'EVICH, SERIKOV DMITRIJ JUR'EVICH
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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