Mobile device for generating acoustic shear waves
US4296828A · kind A · utility
5Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 1979 |
| Grant date | Oct 27, 1981 |
| Priority date | — |
| Expiry date | Jul 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S181/401
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mobile device is used which includes a target-member adapted for coupling to the earth and a means for striking the target- member so as to generate acoustic shear waves. The target-member is coupled to the earth through a deformable coupling member secured to the rigid frame of the target- member, the coupling being enhanced by the combination of a suction means and a network of channels arranged on the face of the coupling member which is in contact with the earth, whereby a partial vacuum is created between the coupling member and the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.