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US 8,800,224 B1Granted
Corrosion inhibiting vapor for use in connection with encased articles
AssigneeCortec Corporation
InventorsMargarita Kharshan, Alla Furman, Jessi Jackson Meyer
Life of this patent
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Abstract
A volatile corrosion inhibiting agent is provided for dispersion of a vapor phase corrosion inhibitor in a vapor stream that is passed into a sheath or other casing enclosing a metal bar, cable, or other tension member to protect said tension member from corrosion.
Claims11
A corrosion inhibition system, including:
- an elongate metal tension member,
- a cover disposed in surrounding relation to the tension member and cooperating with the tension member to define an interior volume between the tension member and the cover,
- a vapor stream comprising a carrier gas motivated in a proximity to a volatile corrosion inhibiting agent composition to cause dispersal within said carrier gas of a vapor phase corrosion inhibitor, said vapor stream being motivated into said interior volume, and
- said volatile corrosion inhibiting agent composition comprising at least a first fast volatile corrosion inhibitor and a second slow volatile corrosion inhibitor.
1 more element
A process for treating an encased tension member in situ, including:
- forming an entrance passage from an exterior of an assembly including a tension member and a fluid impermeable cover to an interior volume between the tension member and the cover;
- forming an exit passage from the interior volume to the exterior, spaced apart from the entrance passage;
- generating an vapor stream including a carrier gas and a vapor phase corrosion inhibitor;
- and
- introducing the vapor stream into the interior volume through the entrance passage while simultaneously allowing a flow out of the interior volume through the exit passage, to substantially fill the interior volume with the vapor stream.
2 more elements
Dependencies are inferred from the claim text.