In a method of corrosion protection of rebar in concrete the sacrificial anode is held in place by wrapping a first wire around a first rebar portion and a second wire at second rebar portion and twisting together the first and second free ends to tension the wrappings. This can be used either on two separate rebars which are parallel or at right angles or can be used at longitudinally spaced positions on a single rebar where the rebar roughening prevents the two wrappings from sliding as the wires are tensioned by the twisting. In many cases a covering material such as a porous mortar is cast onto the outer surface of the anode and in this case the mortar and the wire are located such that the wire exits from the sacrificial anode at a position separate from the layer of covering material.

An electrolytic protection system for stern drive marine motors having a cavitation plae, said system comprising an adaptors fixedly secured to said cavitation plate, and an anode mateable with said adopter.

A method and apparatus are disclosed for providing a new or second bottom in a new or existing storage tank that is spaced above or electrically isolated from the first or old bottom. The tank's sidewall may be separated or slit open, new bottom forming plates slid in place to form the new or second bottom, and the sidewall's upper and lower portions held apart by say spacers, blocks, channels or special fill to electrically insulate or isolate the upper bottom from the lower bottom and protect the new, upper bottom from corrosion. As noted, the present invention may also be used with an existing single or new or existing double or more bottom tanks and with existing or new cathodic protection and other tank construction technology such as lightning and/or static or electrical grounding.

A method and apparatus are disclosed for providing a new or second bottom in a new or existing storage tank that is spaced above or electrically isolated from the first or old bottom. The tank's sidewall may be separated or slit open, new bottom forming plates slid in place to form the new or second bottom, and the sidewall's upper and lower portions held apart by say spacers, blocks, channels or special fill to electrically insulate or isolate the upper bottom from the lower bottom and protect the new, upper bottom from corrosion. As noted, the present invention may also be used with an existing single or new or existing double or more bottom tanks and with existing or new cathodic protection and other tank construction technology such as lightning and/or static or electrical grounding.

A monitored anode apparatus is provided. The apparatus includes a metal body having an exterior and a core, and a plurality of electrically conductive probes passing through the exterior and disposed at respective depths within the core. At least one of the plurality of conductive probes is disposed at a first depth, and at least one of the plurality of conductive probes is disposed at a second depth greater than the first depth. A bonding conductor is in electrical communication with the body and configured to create electrical continuity between the body and a protected structure. The metal body is configured as a galvanic anode, and at least one of the plurality of probes is configured to break electrical conductivity with the body upon galvanic consumption thereof.

An anode assembly is disclosed for use in a cathodic protection system. The anode assembly includes an elongated housing, an electrical cable, an anode, and electrically conductive backfill. The housing has a leading end and a trailing end through which the electrical cable extends. The anode is located within the housing and is in the form of a plurality of electrically conductive segments which are spaced apart from each other and which are electrically connected to the electrical cable at respective electrically conductive joints. The backfill surrounds the anode and cable within the housing.

A self-cleaning anode system for cathodic protection of equipment including a tank in which a liquid to be processed is located. The anode system includes a self-cleaning anode having a titanium body with a catalytic coating thereof. The anode includes at least one piezoelectric transducer for producing ultrasonic vibrations and coupling those vibrations to the catalytic coating on the anode to displace or dislodge any fouling deposits that may have accumulated on the anode during normal its normal operation in cathodically protecting the tank.

A corrosion protection cathode using an external power supply in which a reinforcing layer formed of a fiber base material is laminated with an adhesive layer on one surface of a conductive layer formed of a graphite sheet, and an electrolyte layer of an electrolyte-containing resin formed in a sheet shape and having adhesive power such that the layer is capable of being adhered to the conductive layer and to a surface layer of an object to be protected from corrosion is adhered by the adhesive power thereof to the other surface of the conductive layer, wherein the conductive layer always has a resistance value of 4 or less between any two points on the surface thereof on a side that comes into contact with the electrolyte layer.

A corrosion protection cathode using an external power supply in which a reinforcing layer formed of a fiber base material is laminated with an adhesive layer on one surface of a conductive layer formed of a graphite sheet, and an electrolyte layer of an electrolyte-containing resin formed in a sheet shape and having adhesive power such that the layer is capable of being adhered to the conductive layer and to a surface layer of an object to be protected from corrosion is adhered by the adhesive power thereof to the other surface of the conductive layer, wherein the conductive layer always has a resistance value of 4 or less between any two points on the surface thereof on a side that comes into contact with the electrolyte layer.

Embodiments of the invention relate to a primary contact or primary body comprising of a primary material with a propensity to corrode. A location on a surface of the primary body is an active location and functions to interface with a secondary body. The active location has a first surface and an oppositely disposed second surface. An anode material is applied to the second surface adjacent to the active location on the first surface. The primary body is exposed to a corrosive material. The anode material functions to divert a galvanic corrosive medium from the active location to the applied anode material.