Electro-scan integration into video pipe inspection vehicle
US9143740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2013 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | May 7, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A camera based sewer evaluation vehicle has an electro-scan pipe defect detection system integrated therein. A cable and winch of the camera based system are utilized to support either a camera or an electro-scan probe. A signal transmitted through the cable is passed along for processing of signals received through the cable for final output and analysis, such as on a common computer. To facilitate electro-scan probe based pipe defect detection, a ground rod is utilized. The system can include a funnel plug downstream of the electro-scan probe for interconnection to a haul line and to assist in maintaining a liquid filled status in the pipe adjacent the electro-scan probe. A downstream bypass funnel plug or a blockade of some form can operate within and past a downstream manhole adjacent the pipe to keep the pipe filled with liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.