Pipeline inspection vehicle for detecting defects in pipeline walls
US4105972A · kind A · utility
117Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/9093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pipeline inspection vehicle for detecting defects in the pipeline wall provided with a detector support system comprising a freely supported ring encircling the body of the vehicle and on which are mounted a plurality of spring-loaded pivotally connected link plates, the outermost plates of which carry flux-sensing devices and are urged by spring means resiliently to engage the inner surface of the pipeline wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.