Abstract: 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.

Abstract: 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.

Abstract: Various break-resistant anode assemblies and method of installing the same in the ground are disclosed. Each anode assembly basically comprises an anode, at least one pulling cable, and a protective nose cone. The nose cone is a hollow member receiving the leading end of the anode and from which the anode's electrical conductor extends. The nose cone includes a tapered leading surface that facilitates and guides the anode assembly as it is pulled through the ground, while protecting the anode. A break-away mechanism may also be provided to ensure that no more than a maximum pulling force is applied to the anode assembly during its installation to ensure that the anode is not damaged.

Abstract: 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.

Abstract: Various break-resistant anode assemblies and method of installing the same in the ground are disclosed. Each anode assembly (20) basically comprises an anode (22), at least one pulling cable (24), and a protective nose cone (26). The nose cone is a hollow member receiving the leading end (22A) of the anode and from which the anode's electrical conductor (28) extends. The nose cone includes a tapered leading surface (32) that facilitates and guides the anode assembly as it is pulled through the ground, while protecting the anode. A break-away mechanism (54) may also be provided to ensure that no more than a maximum pulling force is applied to the anode assembly during its installation to ensure that the anode is not damaged.

Abstract: 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.

Abstract: An anode assembly and method for installing it in a cathodic protection system for an aboveground storage tank is disclosed. The anode assembly basically comprises an elongated electrically conductive anode, a fabric housing and sand backfill. The fabric housing is a hollow member in which the sand is located and through which the anode extends. The anode includes portions extending out of the housing for connection to the cathodic protection system. The anode assembly is arranged to be installed on a flat prepared surface below the bottom of the storage tank, whereupon the anode assembly's weight hold it flat on that surface without the need for staking or other means to hold the assembly flat. The ground with the anode assembly can then be backfilled to the level of the bottom of the storage tank.

Abstract: An anode assembly and method for installing it in a cathodic protection system for an aboveground storage tank is disclosed. The anode assembly basically comprises an elongated electrically conductive anode, a fabric housing and sand backfill. The fabric housing is a hollow member in which the sand is located and through which the anode extends. The anode includes portions extending out of the housing for connection to the cathodic protection system. The anode assembly is arranged to be installed on a flat prepared surface below the bottom of the storage tank, whereupon the anode assembly's weight hold it flat on that surface without the need for staking or other means to hold the assembly flat. The ground with the anode assembly can then be backfilled to the level of the bottom of the storage tank.

Abstract: An anode assembly for an impressed current cathodic protection system is disclosed. The anode assembly is arranged to protect a structure in a body of water. It includes an anode, an anode support and a base and is arranged to be electrically connected to the cathodic protection system. The base is a weighted member. The anode comprises a spherical hollow titanium body coated with a mixed metal oxide and filled with a non-conductive material. The anode support is an elongated titanium tube that projects upward from the base. The anode is welded on the top portion of the support to be disposed above the bed of the body of water. The anode assembly is connected to the cathodic protection system by an electrical connector mounted in a box.

Abstract: A sealing device and method of making it for insulating and sealing a joint electrically connecting a wire or ribbon anode to an electrical cable. The cable is insulated except at an open region where the wire anode is connected to it. The sealing device comprises a body of an insulating material molded in situ about the electrical joint to completely cover it and bond to portions of the electrically insulating covering contiguous with the joint to thereby insulate the joint and prevent the ingress of water or other materials into the joint.

Abstract: An anode assembly for an impressed current cathodic protection system is disclosed. The anode assembly is arranged to protect a structure in a body of water. It includes an anode, an anode support and a base and is arranged to be electrically connected to the cathodic protection system. The base is a weighted member. The anode comprises a spherical hollow titanium body coated with a mixed metal oxide and filled with a non-conductive material. The anode support is an elongated titanium tube that projects upward from the base. The anode is welded on the top portion of the support to be disposed above the bed of the body of water. The anode assembly is connected to the cathodic protection system by an electrical connector mounted in a box.

Abstract: A cathodic protection system for internal surfaces of a pipeline is provided which includes a flexible anode assembly having a first and a second end and having at least one flexible anode wire having a first end and a second end. First and second removable pressure seal fittings are provided for the ends of the anode assembly that provide for electrical contact between the ends of the anode assembly and contacts outside of the internal volume of the pipeline. The system includes a DC power source where anode conductors are attached between the contacts and the DC power source. A second embodiment is provided that includes only a single pressure seal fitting.

Abstract: Methods of cathodically protecting structures, anode assemblies used therein and the structures protected thereby. One embodiment of the structure basically consists of a base layer of concrete and, in the case of paved structures, an overlay material disposed over the base layer. One method comprises disposing at least one elongated, electrically conductive, wire anode directly on the concrete base layer. The anode is an elongated wire of small diameter and is arranged to be connected to a source of positive potential. A strip of a mesh material having an adhesive thereon is disposed over the anode and secured directly to the concrete base so that the anode is interposed and held between the strip and the concrete base in electrical engagement therewith.

Abstract: A cathodic protection system having a deep bed anode assembly including a readily replaceable anode. The anode assembly is located within a deep bore hole which is filled with an electrically conductive particulate material up to a predetermined height. The assembly comprises a base assembly located on the bottom of the bore hole, a first conduit extending the full length of the bore hole to the base, and a second conduit connected to the first conduit adjacent the top of the bore hole and extending to a depth slightly below the height of the conductive material and a third conduit extending the full length of the bore hole and perforated along the portion within the electrically conductive material. A small diameter wire electrode extends through the electrically conductive material and is connected at its upper end in a cable extending through the first conduit and at its lower end in a cable passing through the base assembly and the first conduit.