发明名称 |
PERCUSSIVE ACTION PNEUMATIC DEVICE FOR DRILLING HOLES IN SOIL |
摘要 |
<p>PERCUSSIVE ACTION PNEUMATIC DEVICE FOR DRILLING HOLES IN SOIL The percussive action pneumatic device for drilling holes in a soil by compacting same has a cylinder-shaped housing with a conically pointed head portion. This pointed head portion of the housing is engaged in the internal surface of the tail portion of a hollow tip with a pointed end. A transverse partition is provided internally of the hollow tip, in the tail portion thereof, the head portion of the housing being detachably connectable with said transverse partition.</p> |
申请公布号 |
CA1079712(A) |
申请公布日期 |
1980.06.17 |
申请号 |
CA19780294543 |
申请日期 |
1978.01.09 |
申请人 |
INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AKADEMII NAUK SSSR |
发明人 |
KOSTYLEV, ALEXANDR D.;CHEPURNOI, NIKOLAI P.;PLAVSKIKH, VLADIMIR D.;CHEREDNIKOV, EVGENY N. |
分类号 |
(IPC1-7):21B1/06 |
主分类号 |
(IPC1-7):21B1/06 |
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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