Marsh case for a geophone
US4470134A · kind A · utility
8Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Mar 26, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/28
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A geophone marsh case, for use in wetlands, contains a geophone. An electric cable delivers geophone signals to the outside world and provides a means for pulling an emplaced geophone from the mud. The cable is anchored to the marsh case both internally and externally in order to preserve the integrity of a water seal that surrounds the cable in the cable entry port of the marsh case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.