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| Number | Title | Issue Date |
| 7807026 | Discrete anode for cathodic protection of reinforced concrete There is disclosed a cathodic protection system of reinforced concrete structures with discrete anodes obtained starting from a corrugated planar substrate welded to a longitudinal current collector. The anodes of the invention are particularly suitable for being in... | 10/05/2010 |
| 7381312 | Cathodic protection system for a marine propulsion device with a ceramic conductor A ceramic conductor is supported by an electrically insulative support member for attachment directly to a marine propulsion drive and for use as either an anode or electrode in a corrosion prevention system. The ceramic conductor is received within a depression for... | 06/03/2008 |
| 7374643 | Composite sacrificial anodes The invention relates to composite sacrificial anodes, particularly but not exclusively, based on magnesium, and to methods for their production. The composite sacrificial anode (10) for immersion in a corrosive environment comprises a plurality of castings (... | 05/20/2008 |
| 7329336 | Stabilizer with cathodic protection A cathodic protection system for protecting an underwater structure includes a plurality of blocks which are capable of conforming to various structures. Each of the blocks include: a flexible wire rope, the rope constructed and ar... | 02/12/2008 |
| 7276144 | Cathodic protection Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting... | 10/02/2007 |
| 7258780 | Corrosion protection apparatus and method An apparatus and method for protecting a structure from corrosion, according to which the apparatus includes two pivotally connected members, at least one anode device connected to at least one of the members, and a resilient component engaged with the members. ... | 08/21/2007 |
| 7189312 | Under water cable system having an earthing electrode An earthing electrode assembly and method for providing a submerged electrical apparatus with an earth path, the electrode assembly having an earthing electrode, an attachment device for attaching the electrode assembly to a cable, and an insulated electrical connec... | 03/13/2007 |
| 7111668 | Cooling arrangement for an offshore wind energy installation A cooling arrangement for an offshore wind energy installation, having a heat-absorbing device for absorbing heat generated by the electronic devices and/or the mechanical devices of the offshore energy installation, which is to be removed, and a coupled heat-dissip... | 09/26/2006 |
| 7017251 | Resistored anode and a water heater including the same Apparatus and method of incorporating a resistive interface between an anode rod and a water heater tank connector. The resistive interface can include a conductive polymer material or coating. ... | 03/28/2006 |
| 6922886 | APT-1 (anode placement tool-model 1) An apparatus designed for installing anode bracelets upon pipes used in cathodic protection systems. The apparatus includes a pair of grasp booms which hold the anode bracelet during installation of the bracelet around the pipe to be cathodically protected. The gras... | 08/02/2005 |
| 6770177 | Cathodic protection system for air compressor tanks A corrosion protection device (“CPD”) for inhibiting corrosion of an air compressor collection tank, and relieving the pressure in the tank when excessive condensate accumulates within the tank. A relief passage extends through the plug, and an anode seals the r... | 08/03/2004 |
| 6572760 | Cathodic protection Cathodic protection of a structure including a steel member at least partly buried in a covering layer, such as steel rebar in a concrete structure, is provided by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and... | 06/03/2003 |
| 6562206 | Anode assembly A propeller attachment is disclosed including a body, the body including an anodic material, at least one projection projecting from the body, and a fastener coupled to the body. An anode is also disclosed including an annular body constructed from an ano... | 05/13/2003 |
| 6461082 | Anode system and method for offshore cathodic protection A cathodic protection system for offshore structures includes an elongated electrode carrier, such as a pipe, with a plurality of sacrificial anodes attached, that is placed on the ocean floor and electrically connected to the structures to be protected. ... | 10/08/2002 |
| 6120675 | Electrochemical method and electrode An electrochemical electrode of a tube of porous titanium suboxide with a contact connection to an electrical supply.... | 09/19/2000 |
| 5932087 | Submersible anode and method An anode and bracket assembly for attaching sacrificial anodes to submerged structures utilizes one or more shepard's hook hanger brackets. The anode or anodes are cast directly on the bracket with a relatively deep spiral grooved profile for vortex shedd... | 08/03/1999 |
| 5910236 | Electrodes for electro-chemical corrosion protection systems An electrode for use in electro-chemical corrosion protection systems, such as cathodic and anodic metal corrosion protection, is in electric contact with a ionically conducting medium. It comprises at least two electrically non-conducting barriers, space... | 06/08/1999 |
| 5902463 | Submersible anode and method An anode and mounting bracket assembly is designed to seat quickly and easily on cylindrical or tubular underwater structures. The anodes span between end plates which include notches or recesses in which the tubular structure seats. The recesses include ... | 05/11/1999 |
| 5820737 | Anti-fouling laminate marine structures A marine structure submersible in seawater, such as a hull, which when electrically activated is then resistant to fouling by marine organisms. The hull is formed by a structural laminate having a core sandwiched between inner and outer skins. The outer s... | 10/13/1998 |
| 5739424 | Galvanic corrosion inhibiting coupling interposed between two dissimilar pipes The device is an electrically insulating tube which is rigidly mounted between the ends of two dissimilar metal pipes. Longitudinally spaced, annular electrodes are mounted in grooves formed in the cylindrical interior wall. The electrodes are electricall... | 04/14/1998 |
| 5643424 | Apparatus for the prevention of fouling and/or corrosion of structures in seawater, brackish water and/or fresh water A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is in contact with seawater, brackish water, fresh water, or a combination of these. The system includes using a structure having an exposed zinc-cont... | 07/01/1997 |
| 5609748 | Anode for cathodic protection against corrosion For cathodic protection against corrosion of steel reinforcements in reinforced steel constructions, a prefabricated anode is provided which has a core of titanium expanded metal provided with an activation layer and with a cement-containing ion-conductiv... | 03/11/1997 |
| 5569526 | Anode structure for cathodic protection of steel-reinforced concrete and relevant method of use The present invention relates to a method for cathodic protection of steel reinforced concrete which comprises using an anode structure made of an array of valve metal strips activated by an electrocatalytic coating and having voids therein, supported by ... | 10/29/1996 |
| 5547020 | Corrosion control well installation Corrosion control cathodic protection for the rod string and the well tubing. Anode assemblies for mounting on the rods of the rod string.... | 08/20/1996 |
| 5531873 | Electrode arrangement to be used in the cathodic protection of concrete structures and a fixing element The invention relates to a method for fixing an electrode arrangement to be used in the cathodic protection of concrete structures. In the method, an anode (20) is mounted in a framework (11) and the framework with its anodes is mounted on the concrete st... | 07/02/1996 |
| 5513694 | Anodic protection method and system A heat exchanger and process for use with a corrosive fluid, such as sulphuric acid, having an anodic protection system for protecting the acid-contacted surfaces wherein the anodic protection system has a plurality of elongated cathodes of such cross sec... | 05/07/1996 |
| 5423961 | Cathodic protection system for a steel-reinforced concrete structure An anode for cathodically-protected steel-reinforced concrete is embedded in an ion-conductive overlay on the concrete structure. The anode comprises at least one sheet of highly expanded valve metal mesh having a pattern of voids defined by a network of ... | 06/13/1995 |
| 5364511 | Cathodic protection system and a coating and coating composition therefor Cathodic protection system for the cathodic protection of a reinforced concrete structure, which system comprises a concrete structure containing steel reinforcement bars and an electrically-conductive coating bonded to an external surface and in electric... | 11/15/1994 |
| 5346598 | Method for the prevention of fouling and/or corrosion of structures in seawater, brackish water and/or fresh water A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is in contact with seawater, brackish water, fresh water, or a combination of these. The system includes using a structure having an exposed zinc-cont... | 09/13/1994 |
| 5342493 | Corrosion control of dissimilar metals A corrosion inhibiting system for protecting joined dissimilar metals which are contacted by an electrolyte includes an anode electrode located in the electrolyte and adjacent to the less noble metal, and a cathode electrode connected to the more noble me... | 08/30/1994 |
| 5340455 | Cathodic protection system for above-ground storage tank bottoms and method of installing The invention relates to a cathodic protection system for above-ground storage tanks having metal bottoms, either new or retrofitted bottoms. A leak containing dielectric safety membrane is spaced a short distance below and extends beneath the tank bottom... | 08/23/1994 |
| 5298794 | Electrical anticorrosion device for marine propulsion device This invention primarily relates to an electrical anticorrosion device for a marine propulsion arrangement. More particularly, the invention relates to a cathodic protection arrangement which is suitable for use with an inboard/outboard propulsion unit. A... | 03/29/1994 |
| 5292411 | Method and apparatus for cathodically protecting reinforced concrete structures Cathodic protection of a reinforced concrete structure utilizes a metal anode such as a zinc anode in combination with a pressure sensitive ionically conductive hydrogel in contact with at least a portion of the surface of the anode. Preferably, the anode... | 03/08/1994 |
| 5290407 | System for controlling corrosion in an environment in which thin layers of low-pH corrosive fluids are formed A system for preventing corrosion of a metallic surface in an environment in which a corrosive condensate with a pH of less than about 3 tends to form on the surface exposed to the environment. The system includes an absorbent lining formed from a concret... | 03/01/1994 |
| 5183694 | Inhibiting corrosion in reinforced concrete There is disclosed apparatus of and a method for inhibiting corossion of reinforcement in a reinforced structure wherein one or more anodes (3) are arranged adjacent a surface of the structure (1) to be protected and a body of ionically conductive cementi... | 02/02/1993 |
| 5164058 | Anode protector A protector for a segmented anode encircles a pipeline. The protector includes an elastomeric polymeric structure molded in place at each end of the anode. The structure has the external shape of the frustrum of a cone with the base of the cone encircling... | 11/17/1992 |
| 5141607 | Method and apparatus for the removal of chlorides from steel reinforced concrete structures A method and apparatus for the removal of chlorides from steel reinforced concrete utilizes an electrode with a rectifier impressing a voltage between the steel of the concrete and the electrode. The electrode and the surrounding concrete are saturated co... | 08/25/1992 |
| 5104502 | Cathodic protection system and its preparation A method of forming a grid for cathodically protecting a steel rebar reinforced concrete structure comprising forming on the surface of the concrete structure rows of a plurality of valve metal strips with voids, the said strips having an electrocatalytic... | 04/14/1992 |
| 5098543 | Cathodic protection system for a steel-reinforced concrete structure A catalytically-coated valve metal reference electrode is used to measure the potential of reinforcing members in concrete in a system to cathodically protect the same.... | 03/24/1992 |
| 5088432 | Anti-fouling system for substances in contact with seawater The current invention relates to an anti-fouling system for substances in contact with seawater which is constituted of the first conductive membrane that is coated on the outer side of the electric insulator mounted at the surface of the substance such a... | 02/18/1992 |
