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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|