Two-wall leakage detection system for a pipe
US5172730A · kind A · utility
76Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49732
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An elongated fluid detection device, together with a body of absorbent material, is located between the inner surface of a pipe and an impervious liner spaced from the inner surface thereof, the detection device being operatively connected to an external station. The impervious layer may be of a type normally used for relining defective pipes in situ, and the body of absorbent material, together with the fluid detecting element, preferably substantially filling the cylindrical space between the inner surface of the pipe and the impervious liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.