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7585397 Automatic potential control cathodic protection system for storage tanks  
A novel cathodic protection system is provided that automatically controls and adjusts the voltage potential between an anode and a structure to protect the structure from corrosion. The cathodic...
7582195 Cathodic protection system for non-isolated structures including a microprocessor control  
An active cathodic protection system, the apparatus comprising a rectifier element with at least one electrical connection to a source of electrical current, the rectifier element associated with a...
7422789 Cathodic protection coatings containing carbonaceous conductive media  
A cathodic protection polymeric compound is disclosed. The compound has flowable material to serve as a binder, carbonaceous conductive media dispersed in the flowable material, sacrificial metal...
7402233 Apparatus and method for cathodically protecting metals against corrosion  
A cathodic protection system is provided for cathodically protecting an metallic substrate against corrosion, where the system comprises a sacrificial anodic material containing, but not limited...
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...
7318889 Apparatus, system and method for extending the life of sacrificial anodes on cathodic protection systems  
An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and electrically connected to one or...
7279087 Method for protecting metal-containing structures, deposited on substrate against corrosion  
A method for protecting metal-containing structures, in particular electrically conductive structures, deposited on a substrate, against corrosive attacks, in particular electrocorrosion attacks....
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...
7264707 Corrosion inhibitor materials for use in combination with cathodic protectors in metallic structures  
A corrosion inhibitor composition for use in combination with cathodic protection of metallic structures includes between about 5 and 80 percent by weight cyclohexylammonium benzoate; between about...
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...
7192513 Cathodic protection junction box current equalizer  
A cathodic protection junction box current equalizer has a plurality of output terminals each being connectable through a variable resistors to an anode, the resistors being controlled such that...
7189319 Axial current meter for in-situ continuous monitoring of corrosion and cathodic protection current  
First and second axial current meters (ACM) are mechanically connected to a well casing just above and below a corrosive zone and a master axial current meter (MACM) is connected to the casing at...
7186321 Cathodic protection system for metallic structures  
An active cathodic protection system, the apparatus comprising a rectifier element with at least one electrical connection to a source of electrical current, the rectifier element associated with a...
7186327 Method and apparatus for scaling control and in-situ cathodic protection  
A method and apparatus wherein an electrically conductive element is placed inside a previously installed metallic water vessel such as a supply pipe or well. A direct current voltage is then...
7182852 Cryogenic tank testing method including cathodic protection  
The present invention provides a method of testing a cryogenic metal tank before it is put into service, in which said method said tank ( 1 ) is filled with water and appropriate measurements are...
7169288 Methods and systems of cathodic protection for metallic enclosures  
Systems and methods of cathodic protection. The system includes a metallic housing, a backplane situated within the metallic housing, a cathodic protection card coupled to the backplane and a...
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...
7147768 Electrochemical scale inhibition  
A process of reducing scaling of a metal surface exposed to an aqueous solution from which scale may form after a period of exposure. The process comprises applying a cathodic potential to the...
7097746 Anodic protection of electrical contacts  
An anode protection device and method are provided. The method includes placing a sacrificial anode in proximity to the positive and negative contacts to shield or distort the field therebetween...
7029569 Semiconductive corrosion and fouling control apparatus, system, and method  
An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and coated with a semiconductive...
6896779 Corrosion sensor  
A system using tank corrosion sensors to provide for an overall assessment and monitoring of the electro-chemical corrosion and coatings condition in ships' tanks, and particularly in ships'...
6866770 Protective ground mat for induced potentials and method therefor  
A prefabricated ground mat with cathodic protection adapted to protect persons from induced electrical potentials in a pipe or other electrical conductor buried below a ground-level surface,...
6863799 Combination galvanic anode and wear plate for storage tanks  
A method for manufacturing improved cast anodes for corrosion protection in storage tanks calls for integrating a plurality of spaced steel core rods into a sacrificial galvanic anode material...
6692633 Sacrificial anode for corrosion protection of semiconductor metallization during sawing  
Resistance to corrosion of aluminum metallization on semiconductor devices during wafer sawing process is provided by a sacrificial anode containing magnesium in contact with the integrated circuit...
6689270 Water treatment apparatus reducing hard water deposits in a conduit  
Water having dissolved salts therein causing scaling is treated by flowing through a passage in an elongate tubular member. The tubular member has a first metal inside surface exposed to the water....
6669837 Alkali metal hydroxide evaporator system  
A process for reducing the corrosion of nickel metal in an alkali metal hydroxide evaporator equipment which comprises the step of impressing a total protection potential directly upon the nickel...
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...
6562229 Louvered anode for cathodic protection systems  
A metal anode useful in a galvanic or impressed current cathodic protection system for a steel reinforced concrete article is a unitary, multi-plane, porous, metal anode strip or ribbon having a...
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...
6423208 Method and apparatus for lead contamination control  
Control of lead contamination in residential water supplies is accomplished by cathodic protection of lead-containing piping and lead-containing fixtures. Specifically, a partially insulated wire...
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...
6303017 Cathodic protection of reinforced concrete  
Reinforcement in concrete is cathodically protected by galvanically connecting a sacrificial anode, such as a zinc or zinc alloy anode, to the reinforcement, and contacting the anode with an...
6261439 Cathodic protection system for mitigating stray electric current effects  
A cathodic protection system utilizes dynamic control of an output from a power supply to vary an impressed current applied to a structure to be protected proportional to a measurement of stray...
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...
6224743 Cathodic protection methods and apparatus  
Apparatus, compositions and methods provide cathodic protection to a structure by placing an anode layer (10) directly between the structure (22) and its underlying foundation (30). Structures...
6183625 Marine galvanic protection monitor  
A galvanic monitor system uses two annunciators, such like light emitting diodes, to alert a boat operator of the current status of the boat's galvanic protection system. A reference electrode is...
5999107 Remote cathodic protection monitoring system  
A cathodic protection monitoring system for buried metal objects comprising a transponder hard-wire connected to a sacrificial anode and a reference electrode, each of the transponder, the...
5968339 Cathodic protection system for reinforced concrete  
The present invention resides in a method for cathodic protection of and/or chloride removal from a reinforced concrete structure. The method comprises the steps of: providing an anode comprising a...
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...
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...
5785842 Corrosion protection monitoring and adjustment system  
A system for monitoring and alternatively adjusting the electrical energy input and output of remotely located corrosion protection rectifiers on a section of a longer pipeline includes three...
5747892 Galvanic isolator fault monitor  
A system and method for testing and monitoring the operation of a galvanic isolator. The galvanic isolator is positioned between shore ground and boat ground to prevent the flow of destructive...
5665221 Electrical apparatus for controlling liquid contaminants  
A device is placed in a container containing flowing fluid to neutralize fluid contaminants and prevent their deposition on the walls of the container. The device includes a weak electrical current...
5650060 Ionically conductive agent, system for cathodic protection of galvanically active metals, and method and apparatus for using same  
An ionically conductive agent having means for reducing passivation of metal subject to anodic dissolution is disclosed. The ionically conductive agent is interposed between metal to be protected...
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...
5630934 In-situ treatment system for inhibiting the formation of, and for alleviating, acidity in water  
Treatment is described for acidity caused by water seeping down through a seam of acid-generating mineral such as pyrite. The pyrite oxidises through exposure to the atmosphere (as a result of mine...
5547560 Consumable anode for cathodic protection, made of aluminum-based alloy  
A consumable anode for cathodic protection of steels and alloys susceptible to corrosion in seawater operating in an electrochemical potential range in seawater of -870 mV to -700 mV based on the...
5423631 Antifouling structures  
The invention provides an antifouling structure that excels in antifouling performance and durability, dispenses with maintenance work, poses no toxicity problem, and is easily handled. The...
5415745 Method for providing cathodic protection to underground metallic structure using galvanic anodes  
A method of providing cathodic protection to underground metallic structures which comprises creating an excavation spaced from the underground metallic structure and placing in the excavation a...
5368705 Fuel treatment and conditioning apparatus  
Apparatus for conditioning of fluids such as fuel compositions. The fluid to be treated is brought into contact with an alloy comprising zinc, manganese, copper, a precious metal and silicon. The...
Matches 1 - 50 out of 81 1 2 >