Impressed current cathodic protection
US4147608A · kind A · utility
6Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1977 |
| Grant date | Apr 3, 1979 |
| Priority date | — |
| Expiry date | Sep 26, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/153
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An impressed current cathodic protection apparatus has an electromechanically actuated variable transformer providing a variable output voltage and shunt-connected current monitors to monitor the impressed current and to vary the transformer turns ratio to maintain the impressed current within a predetermined range of values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.