Abstract: Exemplary embodiments of the present invention are related to an apparatus and method for a universal attachment device for an inflatable cushion. The apparatus comprising an integrally molded attachment device for an inflatable cushion, the device comprising: a flexible portion; a cushion ring disposed on a first side of the flexible portion; and a cover retainer disposed on a second side of the flexible portion, wherein the cushion ring and the cover retainer are formed by an injection molding process wherein the flexible portion is disposed between the cushion ring and the cover retainer.

Abstract: A method of surveying a cathodically protected metallic structure at least partly immersed in a liquid, such as an undersea pipeline which has sacrificial anodes attached at regular intervals along its length. The anodes provide a known electrolytic potential relative to the surrounding water. The potential differences in the water between a point adjacent an anode, and test points adjacent the pipeline are measured, and the varying level of protection along the pipe is determined from the variations between the measured potential differences.