| 发明名称 |
Insertion coupling for a boring rod assembly and a boring rod assembly |
| 摘要 |
An insertion coupling for a boring rod assembly with at least two coupling elements is disclosed. The coupling elements include at least one corresponding tapered coupling face pair constructed to produce play-free clamping when pressing forces are applied to the insertion coupling.
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| 申请公布号 |
US8443917(B2) |
申请公布日期 |
2013.05.21 |
| 申请号 |
US20100871292 |
申请日期 |
2010.08.30 |
| 申请人 |
PUETTMANN FRANZ JOSEF;TRACTO-TECHNIK GMBH & CO. KG |
发明人 |
PUETTMANN FRANZ JOSEF |
| 分类号 |
E21B17/00 |
主分类号 |
E21B17/00 |
| 代理机构 |
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代理人 |
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