发明名称 |
DRILLING APPARATUS WITH SHUTTER |
摘要 |
The present disclosure relates to a drilling apparatus including a cutting unit defining at least one through-hole that provides fluid communication between a distal side and a proximal side of the cutting unit. The cutting unit includes a plurality of cutting elements at the distal side of the cutting unit. The cutting unit also includes a shutter for selectively opening and blocking the through-hole of the cutting unit.
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申请公布号 |
US2013008723(A1) |
申请公布日期 |
2013.01.10 |
申请号 |
US201013635310 |
申请日期 |
2010.03.15 |
申请人 |
VERMEER MANUFACTURING COMPANY;HOELTING KEITH ALLEN;SALINS ANDIS;HARRISON STUART |
发明人 |
HOELTING KEITH ALLEN;SALINS ANDIS;HARRISON STUART |
分类号 |
E21D9/11 |
主分类号 |
E21D9/11 |
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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