Impressed current cathodic protection system
AssigneesWinn & Coales International Limited, Solomon Corrosion Consulting Services Pty. Ltd.
InventorsIsaac Solomon, Bob Phang
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Abstract
A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising: a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinforcing member such that electrons can flow from said negative terminal to said reinforcing member; b) an anode proximate said structure connected to said positive terminal of said electron source; and c) a pliable conductive substrate substantially enveloping said anode and in intimate contact with at least a portion of said structure. The pliable conductive substrate used comprises a suspension of a conductive compound in a viscous liquid impregnated in a flexible support medium.
Claims19
A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising:
- (a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinforcing member such that electrons can flow from said negative terminal to said reinforcing member;
- (b) an anode proximate said structure and connected to said positive terminal of said electron source;
- and
- (c) a pliable conductive substrate substantially enveloping said anode and in intimate contact with at least a portion of said structure wherein said pliable conductive substrate comprises a pliable conductive medium comprising a conductive material in a viscous liquid and wherein said viscous liquid is a grease.
A method of providing impressed current cathodic protecting to a structure having a corrodible metal reinforcing member comprising the steps of:
- (a) connecting said corrodible metal reinforcing member to a negative side of an electron source;
- (b) forming a recess in said structure;
- (c) positioning an anode in said recess, said anode being surrounded by a pliable conductive substrate in intimate contact with said structure wherein said conductive substrate comprises a pliable conductive medium comprising a conductive material in a viscous liquid and wherein said viscous liquid is a grease;
- and
- (d) connecting said anode to a positive side of said electron source.
A method of providing impressed current cathodic protecting to a structure having a corrodible metal reinforcing member comprising the steps of:
- (a) connecting said corrodible metal reinforcing member to a negative terminal of an electron source;
- (b) applying a flexible support medium impregnated with a pliable conductive medium to at least a portion of said structure wherein said conductive medium comprises a conductive material in a viscous liquid and wherein said viscous liquid is a grease;
- (c) at least partially embedding an anode in said pliable conductive medium;
- and
- (d) connecting said anode to a positive terminal of said electron source.
A pliable conductive substrate for used in an impressed current cathodic protection system which comprises a flexible support medium impregnated with a suspension of a conductive material in a viscous liquid and wherein said viscous liquid is a grease.
Dependencies are inferred from the claim text.