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| Number | Title | Issue Date |
| 7425249 | Subsea solar powered test station with voltage readout Apparatus 10 discloses a subsea monitoring station using solar cells to energize at least one electronic circuit incorporating at least one node having a determinable circuit value or other parameter test station providing a full time voltage readout, powered... | 09/16/2008 |
| 7225863 | Plate-type heat exchanger with anodic corrosion protection To protect a plate-type heat exchanger (1) against corrosion due to the attack of sulfuric acid, it is proposed in accordance with the invention that the region through which flows sulfuric acid has at least one metal cathode (16, 17) and one reference... | 06/05/2007 |
| 7220342 | Self-repairing structure and coating for corrosive medium The invention concerns a structure comprising at least one metallic surface which undergoes cathodic protection and a protective coating for said surface, said coating comprising a polymer including micro-capsules containing compounds sensitive to the electric field... | 05/22/2007 |
| 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 direct current positive (+) output terminal for electrical connectio... | 03/06/2007 |
| 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 permanent anode, external to the metallic housing, coupled to the cathodic... | 01/30/2007 |
| 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 |
| 7141150 | Method and test chamber for accelerated aging of materials and bonds subject to corrosion related degradation A method and test apparatus for carrying out testing on a variety of samples of polymer bonded to metal wherein the samples are subjected to an accelerated cathodic reaction causing cathodic delamination of the samples. In particular, the method and test apparatus i... | 11/28/2006 |
| 6998031 | Electrode An electrode comprises an elongate hollow tube made of porous titanium suboxide the inside wall of which is contacted at spaced apart locations by an electrical conductor so that the current is substantially uniformly distributed along the length of the electrode. | 02/14/2006 |
| 6989095 | Fluid conditioner for reducing scale, corrosion and paraffin buildup in hydrocarbon piping A device utilizing a catalytic alloy, preferably the Walker Alloy, to reduced scale and paraffin buildup in surface hydrocarbon piping is disclosed. The device is presented in a basket filter configuration for ready servicing. A series of alternate embodiments for t... | 01/24/2006 |
| 6937686 | Iron control in BWR's with sacrificial electrodes Method for controlling the level of iron in feedwater of a BWR wherein an iron-containing sacrificial electrode in placed contact with the feed water dissolution of the electrode is induced at a rate which provides a desired level of iron in the feedwater. ... | 08/30/2005 |
| 6835291 | Anode monitoring and subsea pipeline power transmission An anode monitoring system for monitoring the integrity of anodes 2 provided on a metallic structure such as a pipeline system 1. A signal circuit Sn including the pipeline 1 and one of the anodes 2 is set up and appropriate si... | 12/28/2004 |
| 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 wafer and the dicing saw. A relatively thin film or disc ... | 02/17/2004 |
| 6685822 | Process for the protection of reinforcement in reinforced concrete The invention provides a reinforced concrete having improved corrosion resistance in which the content of voids in the concrete at the surface of the steel reinforcement is below 0.8%, preferably below 0.5%, more preferably below 0.2% by area of steel and... | 02/03/2004 |
| 6613216 | Combination galvanic anode and wear plate for storage tanks A storage tank for fluids comprises a novel striker plate. The striker plate is comprised of a sacrificial galvanic anode and a steel core, and it is situated opposite an access opening used for measuring depth of fluid in the tank. The striker plate can ... | 09/02/2003 |
| 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 |
| 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 plurality of louvers defining a plane or planes at the later... | 05/13/2003 |
| 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 |
| 6471851 | Cathodic protection system Humectants are applied to cathodic protection systems which utilize thermally-sprayed zinc or zinc alloy anodes applied to the surface of reinforced concrete structures. The humectants are deliquescent or hygroscopic organic or inorganic salts, hydrophili... | 10/29/2002 |
| 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 |
| 6279617 | Corrosion-protected metal construction in the form of a pipeline An account has been given for corrosion-protection of metal constructions, e.g. in the form of a pipeline consisting of interconnected pipelines (10, 10a, 10b, 10c, 10d) and, possibly, incorporatable in a larger pipe system. Said metal construction is, fo... | 08/28/2001 |
| 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 |
| 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 |
| 6033553 | Cathodic protection system The present invention relates to the field of cathodic protection of reinforced concrete. A conductive metal is thermally applied onto an exposed surface of the concrete in an amount effective to form an anode on the surface. This establishes an interface... | 03/07/2000 |
| 6022469 | Repair of corroded reinforcement in concrete using sacrificial anodes 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 electrolyte solution having a pH which is maintained sufficientl... | 02/08/2000 |
| 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 conductive corrodible metal; providing a corrosive enviro... | 10/19/1999 |
| 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 |
| 5423969 | Sacrificial electrode material for corrosion prevention The present invention provides a sacrificial electrode material which consists of a single phase amorphous structure or a structure consisting of an amorphous phase and a crystalline solid solution phase and provides electrochemical corrosion protection t... | 06/13/1995 |
| 4366037 | Method of increasing useful life expectancy of microporous separators A foraminous protective cathode for diaphragm-type electrolytic cells having a steel cathode and polymeric microporous separator reduces or eliminates separator plugging thereby increasing useful life-expectancy of the separator. The protective cathode po... | 12/28/1982 |
| 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 |
| 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 where improved corrosion protection is needed.... | 08/31/1976 |
| 3956095 | Sacrificial anode This invention is directed to an improved sacrificial anode which consists of a magnesium or magnesium alloy core having a porous magnesium coating thereon. It is also directed to a method of preparing the anode including etching the anode surface, anodiz... | 05/11/1976 |
