发明名称 |
Äänenvaimennuskotelo kallioporaa varten |
摘要 |
The invention relates to a sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space. The sound dampening housing is double-shelled, and an airspace is provided between its inner shell and its outer shell.
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申请公布号 |
FI123742(B) |
申请公布日期 |
2013.10.15 |
申请号 |
FI20070005230 |
申请日期 |
2007.04.04 |
申请人 |
SANDVIK MINING AND CONSTRUCTION OY |
发明人 |
PELTOLA, SEPPO;HAAVISTO, ARI |
分类号 |
E21B7/02;B25D17/11;E21B15/04 |
主分类号 |
E21B7/02 |
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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