Method and apparatus for underground deposit detection in water covered areas
US3987677A · kind A · utility
9Cited by
8References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1976 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Jan 30, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A plurality of gas sample collecting containers are distributed in a predetermined pattern from a vehicle. The containers are cup shaped but weighted so that the open end sinks first and engages the subaqueous earth laer. Gas migrating upwardly through the earth is caught by the inverted cup. The gas sample may be either collected in a separate container or exposed to a detector material located above the expected water level. The sample collecting containers may be retrieved by means of marker floats, magnetic grappling devices or self actuated flotation devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.