UNDERGROUND PIERCING TOOL

A pneumatically operated underground piercing tool that includes an elongate cylindrical body carrying an anvil at one end and with a striker slidably received within a chamber defined by the body. An end cap, threadedly engaged with another end of the body, captures a striker within the chamber. A...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GRABNIC, MICHAEL, PRESTON, DUANE, MARSALEK, DAN
Format:	Patent
Sprache:	eng ; fre
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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