发明名称 |
MODULAR ROTARY DRILL HEAD |
摘要 |
A modular base assembly for a rotary drill head includes a drive flange assembly having a tubular drive shaft configured to engage at least a lower drive interface, a gear housing supporting the drive flange assembly, and a plurality of interchangeable gear pinions selectively coupled to the drive flange assembly.
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申请公布号 |
CA2738008(A1) |
申请公布日期 |
2010.04.01 |
申请号 |
CA20092738008 |
申请日期 |
2009.09.18 |
申请人 |
LONGYEAR TM, INC. |
发明人 |
KRUSE, CHRISTOF;WREDE, STEFAN;WAHL, HANS-JUERGEN |
分类号 |
E21B3/02;E21B7/02 |
主分类号 |
E21B3/02 |
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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