Two-wall leakage detection system for a pipe
US5305798A · kind A · utility
50Cited by
15References
5Claims
0Family size
Inventor
Key dates
| Filing date | Jul 30, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Jul 30, 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.