Combination seismic cable
US4649530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Apr 19, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
I provide a combination land/bay cable capable for simultaneous use on land and in water-covered areas. When the cable section is placed in a water-covered area suitable for hydrophone use, a polarized plug containing an impedance matching transformer is detachably connected to a polarized socket. The transformer connects the hydrophones to a transmission line. If the cable is to be used on land, the transformer is unplugged deactivating the hydrophones and at least one geophone having a substantially identical plug is inserted in the socket. The plug connects the geophone to the transmission line and leaves the hydrophones inactive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.