| 发明名称 |
Cutter head for trenchless boring machine |
| 摘要 |
A cutter for a trenchless boring apparatus includes a mount having a first end to be coupled to a free end of a drill pipe. A plurality of cutting teeth are secured to the mount with the teeth arranged in a helical pattern surrounding an axis of the mount.
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| 申请公布号 |
US5687807(A) |
申请公布日期 |
1997.11.18 |
| 申请号 |
US19950429495 |
申请日期 |
1995.04.26 |
| 申请人 |
VERMEER MANUFACTURING COMPANY |
发明人 |
WOODS, JAMES AKERS;RUNQUIST, RANDY RAY |
| 分类号 |
E21B10/26;E21B10/42;E21B10/60;(IPC1-7):E21B10/42;E21B10/44 |
主分类号 |
E21B10/26 |
| 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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