Method for managing corrosion of an underground structure
US7235961B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 31, 2006 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Mar 31, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F2213/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for managing corrosion of an underground structure includes placing an anode in the ground and electrically connecting it to the underground structure. Access to the ground is obtained through a container at least partially buried in the ground, such that the surface of the ground proximate the container does not need to be penetrated in order to position the anode. A hole is bored through a wall of the container to access the ground proximate the container. Material is removed from the ground to provide a location for the anode. The anode is placed in the ground and backfilled with an electrically conductive backfill. A wire leading from the anode is then terminated inside the container at an electrical connection with another electrical conductor connected to the underground structure. The lid is replaced on the container, and the entire process is performed without penetrating the surface of the ground proximate the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.