Magnetic pipeline inspection vehicle with metallic foil and bristle contacts supporting the vehicle
US4447777A · kind A · utility
29Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1980 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Dec 15, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved magnet assembly for a magnetic pipeline inspection vehicle in which the assembly is rigidly secured on the body of the vehicle which is ferromagnetic and provides an annular magnetic return path between magnetic pole members formed of permanent magnets and flexible bristles or foils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.