Monitoring methods, systems and apparatus for validating the operation of a current interrupter used in cathodic protection
US7901546B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2008 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Jul 3, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention includes systems, methods and apparatus for continuously, independently and in some cases remotely monitoring the operation of a current interrupter used to test a cathodic protection system, or the cathodic protection system itself, for verification of proper operation. Embodiments of the invention include electronic devices that may be temporarily attached to a current interrupter that is being used to test a cathodic protection system, or directly to the cathodic protection system itself. Embodiments of the invention monitor the activity of an interrupter by sampling the output (voltage and time) to identify the cycle(s) of the interrupter. The invention provides truly independent verification since it does not need to know in advance the sequence or cycle times of the current interrupter being monitored. The information obtained by the invention is output so that it may be provided to a user, displayed, downloaded or stored for future reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.