Patent ID: 8017203

Claim:
A method for protecting a tank, container, pipeline, semi-closed system or closed system comprising the steps of: (A) placing a corrosion inhibiting device completely into the interior of a tank, container, pipeline, semi-closed system or closed system, wherein the corrosion inhibiting device comprises: a capsule having at least one sealable enclosure therein; at least one corrosion inhibitor, wherein the at least one corrosion inhibitor is contained in the sealable enclosure; and at least one means for delivering the at least one corrosion inhibitor from the at least one sealable enclosure of the capsule to an environment external to the at least one sealable enclosure, wherein the capsule is formed from a non-degradable material; and (B) closing or sealing the tank, container, pipeline, semi-closed system or closed system, wherein the at least one means for delivering the at least one corrosion inhibitor from the at least one sealable enclosure of the capsule to an environment external to the at least one sealable enclosure is a degradable plug or cap, wherein the degradable plug or cap is formed from a degradable polymer composition.