Marine cathodic protection system
US9790601B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2015 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jun 27, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A marine cathodic protection system configured to protect a metal structure exposed to seawater from corrosion. The system includes a first anode provided on or adjacent the protected metal structure at a first position. The first anode is exposed to seawater, is electrically insulated from the protected metal structure, and is formed of a metal having a greater negative potential than the protected metal. The system further includes a second anode provided on or adjacent the protected metal structure at a second position. The second anode is electrically connected to the first anode. The first position is preferably substantially submerged in said seawater such that the protected metal and the first anode cooperate to define a seawater battery configured to apply an electrical current to the second anode, the second anode thus being an impressed current anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.