Galvanic anodes for submergible ferrous metal structures
US4544465A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 26, 1983 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Oct 26, 2003 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B17/0026
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention provides a detachable sacrificial anode unit comprising a rigid core, e.g. a tubular steel member, and a body of sacrificial anode material, e.g. metals and alloys including zinc, aluminum and magnesium, surrounding and supported by said rigid core, wherein the ends of said rigid core extend beyond the ends of the body of sacrificial anode material, and are adapted to be coupled to the end of another sacrificial anode unit to provide a rigid string. This invention also provides a submergible ferrous metal structure useful in a salt water environment and having a system to provide galvanic protection to the ferrous metal which system comprises a vertically oriented, rigid string of such sacrificial anode units secured to each other by threaded couplings and electrically connected at the ends thereof to such structure in a manner to provide galvanic protection to said structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.