发明名称 Cowl arrangements for mining machines
摘要 A roll of wire mesh is supported on the rear of a cut mineral loading cowl of a rock or mineral winning machine. As the machine traverses along a path cut by the machine the wire mesh is paid out to retain or contain the roof material.
申请公布号 US4229043(A) 申请公布日期 1980.10.21
申请号 US19780954155 申请日期 1978.10.24
申请人 COAL INDUSTRY (PATENTS) LIMITED 发明人 BELL, ROY L.;GARNER, JAMES B.;SALMON, DOUGLAS
分类号 E21D19/02;E21D23/04;(IPC1-7):E21D19/02 主分类号 E21D19/02
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