TUNNELING APPARATUS

The present disclosure relates to a tunneling apparatus including a drill head having a main body and a drive stem rotatably mounted within the main body. The main body defines a vacuum passage offset from the drive stem that extends through the main body from a proximal end to a distal end of the m...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	HARRISON, Stuart, MILLS, Matthew, Arlen, SEE, Douglas, Eugene, MICHAEL, Tod, Jason, SHUMAN V, Robert, Hoch, HOELTING, Keith, Allen, NGUYEN, Melvin, VOS, Matthew, Stephen, SALINS, Andis
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHAFTS TUNNELS
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