Impressed current protection for food or beverage containers
View Patent ↗Techniques are generally described herein for protecting food or beverage containers (e.g., cans) using impressed current protection. In various embodiments, containers may be received into at least one conductive bed, each bed having a complementary anode. The containers may then be electrically coupled to a first terminal (e.g., negative) of a power supply, and the anode may be electrically coupled to a second terminal (e.g., positive) of the power supply. Resultantly, protective current may be provided to the containers by the anode. Other embodiments may be disclosed and claimed.
1. A method for protecting a plurality of containers of food or beverages with impressed current provided by a power supply, the method comprising:
electrically coupling the plurality of containers to a first terminal of the power supply, wherein each of the plurality of container are located in a corresponding opening of a conductive bed; and
electrically coupling an anode associated with a conductive bed to a second terminal of the power supply, wherein a conductive path for the impressed current is formed between the first terminal and the second terminal through at least a portion of the plurality of containers.
2. The method of claim 1 , wherein electrically coupling the plurality of containers comprises electrically coupling a subset of the plurality of containers placed in one conductive bed to another subset of the plurality of containers placed in another conductive bed.
3. The method of claim 1 , further comprising electrically coupling another anode associated with the conductive bed to the second terminal of the power supply.
4. The method of claim 1 , further comprising placing the containers into openings of at least one conductive bed.
5. The method of claim 1 , wherein electrically coupling a plurality of containers comprises electrically coupling a plurality of steel or aluminum containers.
6. A method for protecting a plurality of containers of food or beverages with impressed current provided by a power supply, the method comprising:
receiving at least one conductive bed having a plurality of openings and at least one anode; and
placing a plurality of containers into corresponding openings of the at least one conductive bed, to enable the containers to be protected during storage, when the containers are electrically coupled to a first terminal of a power supply, and the at least one anode is coupled to a second terminal of the power supply, wherein a conductive path for the impressed current is formed between the first terminal and the second terminal through at least a portion of the plurality of containers.
7. The method of claim 6 , further comprising electrically coupling the containers to the first terminal of the power supply, and the at least one anode to the second terminal of the power supply.
8. A method for protecting a plurality of containers of food or beverages with impressed current provided by a power supply, the method comprising:
forming at least one conductive bed having a plurality of openings configured to receive a plurality of containers of food or beverages, with a material comprising calcined coke breeze;
coating the at least one conductive bed with a woven and porous jacket; and
providing at least one anode for the at least one conductive bed, to enable a conductive path for the impressed current to be formed between a first terminal and a second terminal of the power supply, when the containers are electrically coupled to the first terminal of the power supply, and the at least one anode is coupled to the second terminal of the power supply.
9. The method of claim 8 , wherein providing at least one anode comprises:
forming the at least one anode with an inert material of graphite or platinum coated titanium; and
coating the at least one anode with conductive polymer.
10. A method for protecting a plurality of containers of food or beverages with impressed current provided by a power supply, the method comprising:
forming at least one anode with an inert material of graphite or platinum coated titanium; and
coating the at least one anode with conductive polymer;
wherein the at least one anode is configured to be used with at least one conductive bed having a plurality of openings to receive a plurality of containers, wherein a conductive path for the impressed current is formed between a first terminal and a second terminal of the power supply through at least a portion of the plurality of containers, when the portion of the containers are electrically coupled to the first terminal of the power supply, and the at least one anode is electrically coupled to the second terminal of the power supply.
11. An apparatus for protecting a plurality of containers of food or beverages with an impressed current provided by a power supply, the apparatus comprising:
at least one conductive bed configured to receive a plurality of containers; and
at least one anode configured to be electrically coupled to a first terminal of a power supply, wherein a conductive path for the impressed current is formed between the first terminal and a second terminal through at least a portion of the plurality of containers, when the containers are electrically coupled to the second terminal of the power supply.
12. The apparatus of claim 11 , wherein the at least one conductive bed comprises a plurality of openings configured to receive the containers.
13. The apparatus of claim 11 , wherein the at least one conductive bed comprises a material of calcined coke breeze.
14. The apparatus of claim 13 , wherein a conductive bed is further coated with a woven, porous jacket.
15. The apparatus of claim 11 , wherein the at least one anode comprises an inert material of graphite or platinum coated titanium.
16. The apparatus of claim 15 , wherein the at least one anode further comprises a coating of a conductive polymer.
17. The apparatus of claim 11 further comprising a plurality of wires configured to electrically couple the containers to each other or to the second terminal of the power supply.
18. The apparatus of claim 11 further comprising the power supply, wherein the power supply is elected one of a DC power supply or a rectifier configured to convert AC power into DC power.
19. An apparatus for protecting a plurality of containers of food or beverages with an impressed current provided by a power supply, the apparatus comprising:
a conductive bed configured to receive the plurality of containers, wherein the conductive bed comprises:
a plurality of openings to receive the containers;
material of calcined coke breeze; and,
a coating of woven, porous jacket; and,
wherein the conductive bed is configured to be used with at least one anode to provide impressed current protection to the containers when the containers are electrically coupled to a first terminal of the power supply, and the at least one anode is electrically coupled to a second terminal of the power supply.
20. The apparatus of claim 19 , further comprising the at least one anode, wherein an anode is constituted with an inert material of graphite or platinum coated titanium, and coated with a conductive polymer.
21. An apparatus for protecting a plurality of containers of food or beverages with an impressed current provided by a power supply, the apparatus comprising:
at least one anode,
wherein an anode is constituted with an inert material of graphite or platinum coated titanium, and coated with a conductive polymer, and
wherein the least one anode is configured to be used with at least one conductive bed to provide the impressed current protection to containers placed in the at least one conductive bed, when the containers are electrically coupled to a first terminal of the power supply, and the at least one anode is electrically coupled to a second terminal of the power supply.
22. The apparatus of claim 21 , wherein the at least one conductive bed comprises a plurality of openings to receive the containers.
23. An apparatus for protecting containers of food or beverages, the apparatus comprising:
a plurality of conductive beds arranged in a first direction, wherein each conductive bed comprises a plurality of openings to receive the containers, a material of calcined coke breeze, and a coating of woven, porous jacket; and
a plurality of anodes arranged in a second direction orthogonal to the first direction, and configured to be coupled to a positive terminal of a power supply to provide protective current to the containers, when the containers are electrically coupled to a negative terminal of the power supply, wherein an anode comprises an inert material of graphite or platinum coated titanium and a coating of a conductive polymer, and passes through the plurality of conductive beds.
24. The apparatus of claim 23 further comprising a plurality of wires to electrically couple the containers to each other or to the negative terminal of the power supply.
25. The apparatus of claim 23 , further comprising the power supply, wherein the power supply comprises a selected one of a DC power supply or a rectifier configured to convert AC power into DC power.