Seismic probe more particularly usable in an untubed drilling shaft
US4744438A · kind A · utility
12Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1986 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S367/911
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Seismic probe more particularly usable in an untubed shaft comprising a central body and arms opening out radially in different directions. The end of each of the arms is provided with means for anchoring the arm on the wall of the shaft and geophones in a box. In one embodiment, each of the arms can be moved outwardly from the central body independently of the other arms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.