Device for inspection of pipes
US6196075A · kind A · utility
11Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2636
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to facilitate introduction of an inspection pig through an introductory conduit having a smaller diameter and into a pipeline of large diameter and transporting a fluid, in particular gas or oil, the invention proposes a device for inspection of pipes having sensors disposed about an outer periphery thereof having radially expandable inspection units (6, 7), wherein, in particular, a front and a rear inspection unit (6, 7) having sensors (15; 15') displaced with respect to each other in a peripheral sense can be moved axially towards each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.