Systems and methods for preventing and/or reducing corrosion in various articles

• US 6,551,552 B1
• Filed: 09/27/2000
• Issued: 04/22/2003
• Est. Priority Date: 09/27/2000
• Status: Expired due to Term

• Current Assignee: Northern Technologies International Corporation
• Original Assignee: COR/SCI, LLC
• Inventors: Lyublinski, Efim Ya, Kubic, Donald A.
• Primary Examiner(s): Warden, Sr., Robert J.
• Assistant Examiner(s): CONLEY, SEAN EVERETT
• Application Number:
  US09/671,233
• Time in Patent Office: 937 Days
• Field of Search: 422/9, 422/10, 994/67, 206/330, 206/331, 206/332, 252/392, 252/394, 252/396, 252/380
• US Class Current: 422/9
• CPC Class Codes: C23F 11/00 Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent adding inhibitors to mineral oil, fuels, or lubricants C10; adding inhibitors to pickling solutions C23G
• CPC Class Codes: C23F 11/02 in air or gases by adding vapour phase inhibitors
• CPC Class Codes: C23F 15/00 Other methods of preventing corrosion or incrustation
• CPC Class Codes: H05K 3/3489 Composition of fluxes; Methods of application thereof; Other methods of activating the contact surfaces

Abstract

The present invention relates to a corrosion protection system and a method of protecting an article from corrosion by placing the article to be protected in a gas impermeable enclosure comprising at least one shell that is adapted to maintain an internal pressure greater than an external pressure outside of the corrosion protection system, placing at least one corrosion preventing device selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof, and sealing the gas impermeable enclosure of the corrosion protection system.

Claims

1. A method of protecting one or more articles from corrosion comprising the steps of:

(A) placing the one or more articles to be protected in a corrosion protection system, the corrosion protection system comprising a gas impermeable enclosure for holding one or more articles to be protected;

(B) placing at least one corrosion preventing device into the gas impermeable enclosure, wherein the at least one corrosion preventing device is selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof; and

(C) sealing the gas impermeable enclosure,

wherein the gas impermeable enclosure comprises at least two gas impermeable shells comprising an outer shell and an inner shell, wherein the inner and outer shells are adapted to maintain internal pressures greater than the external pressure outside of the corrosion protection system and the at least two shells define a gas impermeable space therebetween, and the pressure inside the inner shell is less than the pressure inside the space between the inner and outer shells.

2. The method of claim 1, wherein the at least two shells are formed from gas impermeable structures which contain at least one layer which are independently selected from gas impermeable polymer layers, metal layers or fabric layers.

3. The method of claim 2, wherein the at least one of the polymer layers is formed from at least one polyolefin polymer.

4. The method of claim 2, wherein at least one desiccant and/or corrosion inhibitor is contained within at least one of the gas impermeable polymer layers and/or fabric layers.

5. The method of claim 1, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells.

6. The method of claims 1, wherein the gas impermeable enclosure further comprises at least one delivery system for delivering periodic doses of a desiccant, corrosion inhibitor and/or inert gas.

7. The method of claim 6, wherein the gas impermeable enclosure further comprises at least one monitoring system for monitoring at least one internal pressure inside the gas impermeable enclosure.

8. The method of claim 7, wherein the gas impermeable enclosure further comprises at least one alarm system for signaling a drop in at least one internal pressure.

9. The method of claim 3, wherein the polyolefin polymer is selected from polyethylene, polypropylene and ethylene/vinyl acetate copolymers.

10. The method of claim 1, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells, and at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

11. The method of claim 1, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

12. The method of claim 1, wherein step (C) is accomplished using a heat sealing, an adhesive seal, or a mechanical sealing means.

13. A method of protecting one or more articles from corrosion comprising the steps of:

(A) placing the one or more articles to be protected in a corrosion protection system, the corrosion protection system comprising a gas impermeable enclosure for holding one or more articles to be protected;

(B) placing at least one corrosion preventing device into the gas impermeable enclosure, wherein the at least one corrosion preventing device is selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof; and

(C) sealing the gas impermeable enclosure,

wherein the gas impermeable enclosure comprises at least two gas impermeable shells comprising an outer shell and an inner shell, wherein the at least two shells are adapted to maintain internal pressures greater than the external pressure outside of the corrosion protection system and the at least two shells define a gas impermeable space therebetween, and the pressure inside the space between the outer shell and the inner shell is less than the pressure inside the inner shell.

14. The method of claim 13, wherein the at least two shells are formed from gas impermeable structures which contain at least one layer which are independently selected from gas impermeable polymer layers, metal layers or fabric layers.

15. The method of claim 13, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells.

16. The method of claim 13, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells, and at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

17. The method of claim 13, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

18. A corrosion protection system comprising:

a gas impermeable enclosure for holding one or more articles to be protected; and

at least one corrosion preventing device located within the gas impermeable enclosure,

wherein the at least one corrosion preventing device is selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof,

wherein the gas impermeable enclosure comprises at least two gas impermeable shells comprising an inner shell and an outer shell, and

wherein the inner and outer shells are adapted to maintain internal pressures greater than the external pressure outside of the corrosion protection system and the at least two shells define a gas impermeable space therebetween, and the pressure inside the inner shell is less than the pressure inside the space between the inner and outer shells.

19. The system of claim 18, wherein, wherein the at least two shells are formed from gas impermeable structures which contain at least one layer which are independently selected from gas impermeable polymer layers, metal layers or fabric layers.

20. The system of claim 19, wherein the at least one of the polymer layers is formed from at least one polyolefin polymer.

21. The system of claim 20, wherein the polyolefin polymer is selected from polyethylene, polypropylene and ethylene/vinyl acetate copolymers.

22. The system of claim 19, wherein at least one desiccant and/or corrosion inhibitor is contained within at least one of the gas impermeable polymer layers and/or fabric layers.

23. The system of claim 18, wherein the gas impermeable enclosure further comprises at least one delivery system for delivering periodic doses of a desiccant, corrosion inhibitor and/or inert gas.

24. The system of claim 23, wherein the gas impermeable enclosure further comprises at least one monitoring system for monitoring at least one internal pressure inside the gas impermeable enclosure.

25. The system of claim 24, wherein the gas impermeable enclosure further comprises at least one alarm system for signaling a drop in the at least one internal pressure.

26. The system of claim 18, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells.

27. The system of claim 18, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells, and at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

28. The system of claim 18, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

29. A corrosion protection system comprising:

a gas impermeable enclosure for holding one or more articles to be protected; and

at least one corrosion preventing device located within the gas impermeable enclosure,

wherein the at least one corrosion preventing device is selected from a desiccant, a corrosion inhibitor, an inert gas, or a combination thereof,

wherein the gas impermeable enclosure comprises at least two gas impermeable inner and outer shells, and

wherein the at least two shells are adapted to maintain internal pressures greater than the external pressure outside of the corrosion protection system and the at least two shells define a gas impermeable space therebetween, and the pressure inside the space between the inner and outer shells is less than the pressure inside the inner shell.

30. The system of claim 29, wherein the at least two shells are formed from gas impermeable structures which contain at least one layer which are independently selected from gas impermeable polymer layers, metal layers or fabric layers.

31. The system of claim 29, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells.

32. The system of claim 29, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained in the space between the inner and outer shells, and at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.

33. The system of claim 29, wherein at least one desiccant, corrosion inhibitor and/or inert gas is contained inside the inner shell.