Ceramic coated strip anode for cathodic protection
US4946570A · kind A · utility
5Cited by
17References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Feb 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/31
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An elongated anode, comprising an electrically conductive ceramic material coated on a valve metal substrate, is secured in a correspondingly elongated groove which extends longitudinally in a shield of electrically non-conductive material. The shield has a convex outer surface when viewed in a plane perpendicular to its longitudinal axis. The shield can be a longitudinal segment of a cylindrical thermoplastic pipe containing spirally wound reinforcing filaments. The interior space of the annular segment can be filled with a resilient material to provide a cushion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.