发明名称 |
Method and apparatus for mining machine cutter head |
摘要 |
An improved cutting head for a mining machine having a rotary cutting head and shaft removably and rotatably attached to the forward end of a mining machine such that the shaft and cutting head alone may be removed from the forward end of the machine and repaired at the site where the mining is taking place.
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申请公布号 |
US4648660(A) |
申请公布日期 |
1987.03.10 |
申请号 |
US19850727682 |
申请日期 |
1985.04.26 |
申请人 |
DRESSER INDUSTRIES, INC. |
发明人 |
MANN, JOHN P.;LEVENSTEIN, VICTOR M.;FOX, CHARLES H. |
分类号 |
E21C27/24;(IPC1-7):E21C27/24 |
主分类号 |
E21C27/24 |
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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