E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
E21C 41/22 (2006.01) E21C 41/16 (2006.01) E21D 9/12 (2006.01) E21F 13/04 (2006.01)
Patent
CA 2093343
2093343 9206280 PCTABS00011 An ore pass rush eliminator which comprises in the ore pass shaft (10) a channel (20) formed in the base of the shaft whereby excess water can pass to waste to avoid any build up of such water. The invention also describes means whereby the channel may be kept clear of build up of ore by means of an endless chain (40).
Cassan Maclean
Miller Barry John
LandOfFree
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