| 发明名称 |
Rotary cutting head for mining machines with means for inducing airflow and sensing thereof |
| 摘要 |
A rotary cutter head for a coal mining machine comprises sensor means for sensing a preselected state, as for example, the methane concentration in the vicinity of the cutter head and for deriving a signal indicative of the sensed preselected state.
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| 申请公布号 |
US4465318(A) |
申请公布日期 |
1984.08.14 |
| 申请号 |
US19820418424 |
申请日期 |
1982.09.15 |
| 申请人 |
COAL INDUSTRY (PATENTS) LIMITED |
发明人 |
LEWIS, WINSOR T.;BROWNING, ERIC J. |
| 分类号 |
E21C35/00;E21C35/04;(IPC1-7):E21C35/22 |
主分类号 |
E21C35/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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