Double-wall underground container for storing liquids and leak detecting means therefor
US4561292A · kind A · utility
57Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1985 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Jun 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/23
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aboveground reservoir is connected to the space between inner and outer tanks of an underground double-wall storage container for liquids. Leak detecting liquid fills the space between the tanks and extends to a surface level in the reservoir. Sensing means detects a drop in the level of the liquid in the reservoir and activates a signal when a leak develops in either of the inner and outer tanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.