| 发明名称 |
PNEUMATIC ROCK-BORING DEVICE AND METHOD FOR HORIZONTAL DRILLING USING COMPRESSED AIR AND DRILLING MEDIUM |
| 摘要 |
The invention relates to a method for horizontal ground-boring, in particular for rock-boring, by means of a rotating and hammering driven ground-boring device, whereby the device is alternately or simultaneously supplied with compressed air and drilling medium and the compressed air and drilling medium are supplied through a channel. |
| 申请公布号 |
WO0244508(A3) |
申请公布日期 |
2003.02.13 |
| 申请号 |
WO2001EP13988 |
申请日期 |
2001.11.30 |
| 申请人 |
TRACTO-TECHNIK GMBH;PUETTMANN, FRANZ-JOSEF |
发明人 |
PUETTMANN, FRANZ-JOSEF |
| 分类号 |
E21B1/30;E21B4/14;E21B4/20;E21B7/06;E21B10/38;E21B10/40;E21B17/07;E21B21/00;E21B21/10;E21B21/14;E21B21/16;E21B34/12 |
主分类号 |
E21B1/30 |
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