发明名称 ORE PASS RUSH ELIMINATOR
摘要 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).
申请公布号 CA2093343(A1) 申请公布日期 1992.04.04
申请号 CA19902093343 申请日期 1990.10.03
申请人 MILLER, BARRY J. 发明人 MILLER, BARRY J.
分类号 E21F13/04;(IPC1-7):E21C41/22;E21C41/16;E21D9/12 主分类号 E21F13/04
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