Ladder anode for cathodic protection of steel reinforcement in atmospherically exposed concrete
US6569296B1 · kind B1 · utility
3Cited by
6References
23Claims
0Family size
Inventors
Key dates
| Filing date | Jan 30, 1996 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2201/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A grid anode for cathodic protection of steel reinforced concrete structures formed of multiple valve metal strips including multiple electric current-carrying valve metal strips. Valve metal strip grid anodes without an electrocatalytic metal surface can be used in a cathodic protection system operated at an anode current density up to about 20 milliamps per square foot. Composite anodes having an electrocatalytic metal coating are useful at higher anode current densities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.