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8133381 |
Cased pipe internal cathodic protection apparatus and method
A method and system for protecting underground gas carrier pipes housed within an outer casing pipe in which a gas carrier pipe section disposed within an outer casing pipe section and having...
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8048288 |
Impressed current protection for food or beverage containers
Techniques are generally described herein for protecting food or beverage containers (e.g., cans) using impressed current protection. In various embodiments, containers may be received into at...
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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...
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6383364 |
Method for cathodic protection of reinforced concrete
There is described a method of cathodic protection, electrochemical chloride extraction and realkalisation in reinforced concrete or similar materials, and also reinforcement and crack prevention...
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6027633 |
Electrolytic restoration of concrete
An electrolytic restoration of concrete includes an anode positioned at a surface of the concrete to be restored and the communication of a current from the anode to the reinforcing bars in the...
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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...
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5527440 |
Repair of damaged electrode in impressed current corrosion protection system
A elongate electrode of an impressed current protection system comprises a polymeric jacket sleeve (10) that contains a particulate carbonrich filler (12) around a central elongate conductive core...
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5525208 |
Grounding electrode
A method for electric protection of a metal object, in which a long-line grounding electrode is installed in an electrolytic medium at a preset distance from the metal object to be protected and...
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5080773 |
Ground electrode backfill
A low resistance non-permeable backfill especially for use in vertical anode beds for the cathodic protection of subsurface metallic structures includes a mixture of portland cement, calcined fluid...
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5040599 |
Cathodic protection
Cathodic corrosion protection of a metallic structure in contact with the earth employs a backfill material which is a mixture of a carbonaceous solid and a clay. The backfill mixture is used to...
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4990231 |
Corrosion protection system
Methods of preventing corrosion in which current flows between the to-be-protected substrate and a distributed electrode whose electrochemically active surface is provided by an element which is...
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4921588 |
Cathodic protection using carbosil anodes
An anode of about 90-99% carbon, about 1-9% silica gel, and about 0.1% inert binders is mounted on a painted surface.
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4874487 |
Corrosion protection
Corrosion protection systems which make use of a barrier which is placed between a corrodible substrate and a counter-electrode. The barrier can provide more uniform current distribution on the...
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4647353 |
Cathodic protection system
An anode of about 98% carbon, 2% silica gel and less than 1% inert binders is mounted on a layer spread on a metal surface.
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4544464 |
Ground anode prepacked with backfill in a flexible structure for cathode protection with impressed currents
Flexible ground anode prepacked with backfill for protection of a cathode with impressed currents, made up by a flexible anodic conductor (1), surrounded by backfill and coaxially centered as to...
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4473450 |
Electrochemical method and apparatus
Electrodes for electrochemical processes, especially anodes for impressed current systems for corrosion prevention, have an electrochemically active outer surface comprising a first element,...
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4420382 |
Method for controlling end effect on anodes used for cathodic protection and other applications
`Necking` of elongated cathodic protection anodes is obviated or reduced by means of a nonconductive shield placed around the periphery of the anode, but spaced away from the surface of the anode...
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4318795 |
Valve metal electrode with valve metal oxide semi-conductor face and methods of carrying out electrolysis reactions
Describes chlorine resistant metal electrodes, preferably of valve metals such as titanium and tantalum, having coatings of mixed metal oxides, preferably valve metal oxides and platinum group...
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4175021 |
Apparatus for preventing end effect in anodes
An apparatus for and method of preventing end effect in deep well impressed current anodes surrounded by a carbonaceous backfill in which the opposite ends of an elongated slender anode are of...
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3978309 |
Sacrificial, shaped anode and method of constructing same
A shaped, sacrificial anode for water tanks and a method of constructing the same from extruded sections is disclosed, particularly an anode having a greater mass adjacent to regions of the tank...
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3616354 |
METHOD FOR INSTALLING CATHODIC PROTECTION
A method for providing cathodic protection for a metallic structure in contact with the ground, for example, a pipeline, comprises disposing a suitable anode at depth in a borehole so that the...
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3798142 |
CORROSION PROTECTION
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3458413 |
METHOD OF INHIBITING FOULING OF SEA WATER CONDUITS AND THE LIKE BY MARINE ORGANISMS
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3458643 |
GROUND CONNECTION AND METHOD OF MAKING THE SAME
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3442779 |
ANODIC PROTECTION OF METALS
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