ROLLER BIT

FIELD: rock breaking tools. SUBSTANCE: roller bit includes arms making body of bit, rolling cutters mounted in bearing assemblies and nozzle with cone internal hydraulic conduit located in central hole of body. Six longitudinal slits are made in wall of nozzle. Three equal slits with larger areas of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MARIK VASILIJ BOGDANOVICH, GUK ROMAN IOSIFOVICH, BOGOMOLOV R.M, GAVRILENKO M.V, GERULA JAROSLAV IVANOVICH
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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