Movable device for generating acoustic shear waves in the earth
US4118994A · kind A · utility
16Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Apr 15, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18344
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for generating shear waves in the earth for seismic prospectives, comprising a target member coupled with the earth, a vehicle carrying a mass and means for driving and guiding the mass along a direction perpendicular to the striking surface of the target member and parallel to the earth surface, said means comprising a toothed wheel in mesh with a driving chain and a counterweight for balancing the mass. According to a particular embodiment, the target member is so designed that at least a part of the vehicle weight can be applied thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.