In-situ surface treatment containment apparatus and method

Details In-situ surface treatment containment apparatus and method In-situ surface treatment containment apparatus and method

1989-09-08

1991-01-29

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204224R, C25D 502, C25D 1700

Patent

active

049884140

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.

REFERENCES:
patent: 2540602 (1951-02-01), Thomas et al.
patent: 3546088 (1970-12-01), Barkman et al.
patent: 3704220 (1972-11-01), Ashworth
patent: 3924664 (1966-12-01), Franklin
patent: 4364799 (1982-12-01), Steiger

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