Percussion drill head
US7093677B2 · kind B2 · utility
6Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method for horizontal drilling with a percussion implement and a percussion head or percussion head element mounted in a movable manner relative to the percussion implement, the percussion impulse being transmitted in at least three steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.