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US 9,435,037 B2Granted
Method for treating elongate metal tension member with volatile corrosion inhibitors
AssigneeCortec Corporation
InventorsMargarita Kharshan, Alla Furman, Jessi Jackson Meyer
Life of this patent
Estimating the term…
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.
Claims15
A process for treating an elongate metal tension member, including:
- generating a vapor stream including a carrier gas and a vapor phase corrosion inhibitor capable of adsorbing to exposed metal surfaces;
- introducing the vapor stream into an interior volume defined within a casing that is disposed in surrounding relation to said elongate metal tension member until the vapor stream fills a portion of the interior volume of said casing;
- and
- passing said carrier gas in proximity to a volatile corrosion inhibiting agent composition, said volatile corrosion inhibiting agent composition including first and second volatile corrosion inhibitors having different equilibrium vapor pressures.
1 more element
A process for treating an elongate metal structural member held under tension, said process comprising the steps of:
- generating a vapor stream including a carrier gas and a vapor phase corrosion inhibitor capable of adsorbing to exposed metal surfaces;
- directing the vapor stream into an interior of a casing surrounding the elongate metal structural member until the vapor stream fills a portion of the casing;
- and
- passing said carrier gas in proximity to a volatile corrosion inhibiting agent composition to disperse said vapor phase corrosion inhibitor within said carrier gas, said volatile corrosion inhibiting agent composition including first and second volatile corrosion inhibitors having different equilibrium vapor pressures.
1 more element
A process for treating an elongate metal structural member held under tension, said process comprising the steps of:
- generating a vapor stream including a carrier gas and a vapor phase corrosion inhibitor capable of adsorbing to exposed metal surfaces;
- directing a volume of vapor stream into an interior of a casing surrounding the elongate metal structural member wherein said volume of vapor stream is sufficient to fill an interior volume of the casing;
- and
- passing said carrier gas in proximity to a volatile corrosion inhibiting agent composition to disperse said vapor phase corrosion inhibitor within said carrier gas.
1 more element
Dependencies are inferred from the claim text.