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| Number | Title | Issue Date |
| 7749362 | Protection of reinforcement A method of protecting steel in concrete is disclosed. It consists of connecting the steel (6) to a discrete sacrificial anode assembly (7) comprising a base metal (1), a relatively small quantity of catalytic activating agent in contact with th... | 07/06/2010 |
| 7438787 | Impressed current cathodic protection system for marine engine A cathodic protection system has electrodes disposed in a coolant passage of an engine filled with a conductive coolant. The electrodes are electrically insulated from the engine. A power supply device provides for a protective electric current to form from the elec... | 10/21/2008 |
| 7431809 | Electrode for a cathodic protection device An electrode for a cathodic protection device that has one or more electrode bodies formed of a conductive wire. The electrode includes a pair of films made of an insulating material which are bonded to each other while sandwiching the electrode body therebetween. P... | 10/07/2008 |
| 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 |
| 7370648 | Water heater system A housing has a top, a bottom and side walls. A liner has a top, a bottom, and side walls. The liner is fabricated of glass. A space is provided between the liner and housing. Insulation material is provided throughout the space. A heating assembly is provided withi... | 05/13/2008 |
| 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 |
| 7303659 | System for preventing adhesion of marine organisms Plural composite panels are aligned in multiple horizontal rows. Each composite panel includes a titanium panel (anode), an electrical insulating member and a stainless-steel band member. The titanium panels (also, stainless-steel band members) of horizontally adjac... | 12/04/2007 |
| 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 |
| 7264697 | Marine anode with current tester A sacrificial marine anode with a water proof encased current tester to alert an operator of proper connectivity, current status of the cathodic protection system for an associated marine structure, and status of current tester power supply is disclosed. ... | 09/04/2007 |
| 7226532 | Cathodic protection of steel within a covering material Cathodic protection of an existing concrete structure, including a steel member at least partly buried, such as steel rebar, in the concrete structure, is provided by embedding anodes into a fresh concrete layer applied over an excavated patch and/or as a covering o... | 06/05/2007 |
| 7211173 | System for inhibiting fouling of an underwater surface A marine fouling inhibiting system comprises first and second conductors which are made of a polymer matrix, such as vinyl ester, and a suspended conductor, such as graphite powder or particles. This type of conductive material is formed to provide two sections of a... | 05/01/2007 |
| 7198707 | Apparatus for cathodic protection in an environment in which thin film corrosive fluids are formed and method thereof An apparatus and method for cathodic protection in an environment where thin film corrosive fluids are formed is provided. The apparatus which protects from corrosion an object exposed to the thin film corrosive fluids, by artificially adjusting a potential of the o... | 04/03/2007 |
| 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 |
| 7186320 | Submersible anode made of a resin matrix with a conductive powder supported therein An anode for a cathodic protection system comprises a base portion or support structure which is shaped to receive a conductive element, or insert, within a cavity of the support structure. The conductive element is made of a polymer material, such as vinyl ester, w... | 03/06/2007 |
| 7160433 | Cathodic protection system The cathodic protection system of a concrete structure (22) uses sacrificial anodes such as zinc, aluminum and alloys thereof embedded in mortar. A humectant is employed to impart high ionic conductivity to the mortar in which the anode is encapsulated. Lithi... | 01/09/2007 |
| 6958116 | Cathodic protection system The present invention relates to a method of and an apparatus (20) for cathodic protection of reinforced concrete using discrete anodes (22) in or on the reinforced concrete member (14) to improve performance and service life of the discrete ano... | 10/25/2005 |
| 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 |
| 6726831 | Corrosion protection of electrically heated pipe-in-pipe subsea pipeline Apparatus and method for providing corrosion protection of subsea pipe-in-pipe electrically heated pipeline are provided. The exterior surface of the outer pipe is coated with a thick protective coating in and near the splash zone and near the bulkhead of the heated... | 04/27/2004 |
| 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 |
| 6514401 | Anti-biofouling system An anti-biofouling system adapted to be used for an underwater structure immersed in seawater is disclosed. The anti-biofouling system includes a conductive layer, comprising carbon fiber, graphite powder and binder, formed on a surface of the underwater ... | 02/04/2003 |
| 6358397 | Doubly-protected reinforcing members in concrete A concrete structure is reinforced with steel rebars coated with essentially pure aluminum in the range from about 0.25 mm to 2 mm thick upon which aluminum coating is an aluminum oxide layer in the range from 0.1 μm to 100 μm thick. This layer of alumi... | 03/19/2002 |
| 6346188 | Battery-powered cathodic protection system The present disclosure relates to a cathodic protection system for inhibiting oxidation of a reinforcing member disposed within a cementitious structure. The system comprises a compact, autonomous battery adapted to mount to the cementitious structure at ... | 02/12/2002 |
| 6331242 | Anodic encasement corrosion protection system for underground storage tanks, and metallic components thereof Corrosible metallic elements of tank are protected by an anodic encasement sleeve. The anodic encasement sleeve employs an inner sacrificial anodic layer and an outer environmental barrier layer to provide both cathodic and barrier protection against corr... | 12/18/2001 |
| 6238545 | Composite anode, electrolyte pipe section, and method of making and forming a pipeline, and applying cathodic protection to the pipeline An anode is embedded in an electrolyte layer applied to the surface of a structure such as a pipe section to provide an ionic conductive path between the anode and structure to supply cathodic protection to the structure, where the natural environment may... | 05/29/2001 |
| 6217742 | Cathodic protection system The present invention relates to a method of cathodic protection of reinforced concrete, and more particularly, to a method of improving the performance and service life of discrete anodes used in a cathodic protection system. The method of the present in... | 04/17/2001 |
| 6214203 | Anodic encasement corrosion protection system for pipe and appurtenances, and metallic components thereof Corrosible metallic elements of pipe are protected by an anodic encasement sleeve. The anodic encasement sleeve employs an inner sacrificial anodic layer and an outer environmental barrier layer to provide both cathodic and barrier protection against corr... | 04/10/2001 |
| 6165346 | Cathodic protection of concrete An existing concrete structure is restored by embedding sacrificial anodes into the concrete layer at spaced positions over the layer and connecting the anodes to the reinforcing members to provide a cathodic protection against corrosion. Each anode is in... | 12/26/2000 |
| 5855747 | Performance enhancing coating for water heater Coatings are described to improve the performance of cathodic protection systems used in water heater tanks. Semi-permeable sparingly soluble films of silicates and other organic resins protect critical areas of sacrificial anodes from concentrated usage ... | 01/05/1999 |
| 5334299 | Water heater having improved sacrificial anode assembly therein A water heater includes a metal storage tank for holding a quantity of water to be heated. Extending into the interior of the tank is a sacrificial anode assembly operative to inhibit corrosion of the tank and including a cylindrical metal anode member ha... | 08/02/1994 |
| 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 |
| 5256267 | Resistored sacrificial anode assembly for metal tank A sacrificial anode assembly is insertable into a metal water storage tank to inhibit corrosion thereof and includes a cylindrical metal anode member having an end retained within a cylindrical plastic insulating sleeve which, in turn, is captively retain... | 10/26/1993 |
| 5169266 | Corrosion resistant structure for soil reinforcement Method for the realization of soil reinforcement by means of cathodically polarized stainless steel units fearturing high corrosion resistance. The method applied foresees the use of stainless steel and carbon steel strips.... | 12/08/1992 |
| 4614461 | Tendon of TLP and electrical corrosion protecting method of the same The tendons of a tension leg platform (TLP) used for producing petroleum offshore at a depth of 400-1000 m are protected against fatigue corrosion which mainly determines the life of the tendons. The straight steel pipes (1) have an insulative, corrosion-prote... | 09/30/1986 |
| 4224126 | Anode assembly for hot water heaters A plug-type anode assembly includes a configured anode end for ease of assembly and improved core wire contact, a heat shrinkable sealing sleeve, and a sealant for completely filling the interstices between the plug and anode.... | 09/23/1980 |
| 4202750 | Container anode A container having a rigid wall with a sacrificial anode non-removably attached to the inner surface thereof. Both the container wall and the anode are formed with nested integral rivets, whereby the anode is held in close contact with the container wall.... | 05/13/1980 |
| 4171254 | Shielded anodes A shielded anode for use in controlling corrosion, for example, in a truck or a tanker, comprising a perforated plastic shield encompassing the anode and having a hinged flap on opposite sides thereof supporting at its free end a float member, such that t... | 10/16/1979 |
| 4133737 | Shielded anodes A shielded anode, preferably of the aluminum type, comprising an elongated anode body encased on all sides including the top, bottom and the ends by a sheathing which comprises a pair of plastic casings including an inner casing which is in direct contact... | 01/09/1979 |
| 4040447 | Protection of pipe against damage to insulation and/or corrosion A mount extends in protective and supportive relation beneath an insulation covered pipe, to protect the insulation against damage. The mount defines a generally concave receptacle receiving the underside of the pipe and insulation, and it may consist of ... | 08/09/1977 |
