IMMERSED AIR HAMMER

FIELD: mining. ^ SUBSTANCE: invention refers to mining, particularly to immersed air hammers for driving of bores in rocks of medium and high hardness and can be employed at construction. The immersed air hammer contains case with boring in the front part, and hammer consisting of head and stepped t...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ALEKSEEV SERGEJ EVGEN'EVICH, REPIN ANATOLIJ ANTONOVICH, PJATNIN GENNADIJ ALEKSANDROVICH
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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