In-situ surface treatment containment apparatus and method
US4988414A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1989 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Sep 8, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D17/008
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method and apparatus for a containment for treating a surface, such as on an aircraft, in-situ. A treating compartment having a conductive screen and an insulating fiber member therein is held in place on the surface by a retaining membrane attached around the periphery of the treating compartment. The treating fluid is held in a separate container that is coupled to the treating compartment. A suction is placed on the treating compartment which pulls the membrane, screen and fiber against the surface and into contact with each other. The suction also pulls the treating fluid into the treating compartment. The fluid spreads evenly along the insulating member disposed between the screen and the surface under treatment. A voltage potential difference is placed between the conductive screen and the surface, causing current to run through the treating fluid to provide treatment of the surface. After the treatment is completed, the suction from the treating compartment is removed and the fluid returned to its container. The retaining membrane is removed and the entire apparatus removed from the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.