MUDDY WATER SUCKING DEVICE FOR USE IN UNDERGROUND CONSTRUCTION WORK

PROBLEM TO BE SOLVED: To feed muddy water in a shaft of great depth onto the ground with discharge capability that is several times those of conventional devices by allowing a pump to exhibit its own ability to a maximum by eliminating the influence of atmospheric pressure above the ground. SOLUTION...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	URAYA AKIO
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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