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| Number | Title | Issue Date |
| 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 to, zinc, magnesium, aluminum or a mixture of these materials, with a c... | 07/22/2008 |
| 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 |
| 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 which provides preferential corrosion of the sacrificial anode, instead... | 08/29/2006 |
| 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, adapted to protect test stands, valve sites, metering stations, pig launche... | 03/15/2005 |
| 6793800 | 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... | 09/21/2004 |
| 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 |
| 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 |
| 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 is inserted into lead-containing service lateral piping. Ap... | 07/23/2002 |
| 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 |
| 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 |
| 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 electrolyte solution having a pH which is maintained sufficientl... | 10/16/2001 |
| 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 electrical current. The current is also supplied to an anode ... | 07/17/2001 |
| 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 contemplated to be protected in this manner include especially... | 05/01/2001 |
| 6103097 | 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 is inserted into lead-containing service lateral piping. Ap... | 08/15/2000 |
| 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 |
| 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 |
| 5897755 | Cathodic protection test station A cathodic protection test station device has a terminal board integrally formed with a base plate. A removable housing locks onto the base plate and covers the terminal board and the base plate. A tab formed in the base plate extends into a recess formed... | 04/27/1999 |
| 5876575 | Method and apparatus for treatment of water There is disclosed a method, and the apparatus useful in the method, for the treatment of water in which the treatment unit is formed of a vessel having a treatment chamber with interior surfaces formed entirely of a nonferrous metal, preferably of copper... | 03/02/1999 |
| 5714045 | Jacketed sacrificial anode cathodic protection system A jacketed anode assembly for use in a sacrificial anode cathodic protection system deployed to impede corrosion of steel or steel reinforcement in pilings or similar supporting columns. A non-conductive jacket formed of mating shell halves is lined along... | 02/03/1998 |
| 5505826 | Hydrophilic anode corrosion control system A method and apparatus for reducing corrosion on the interior and exterior of a fuel storage tank. A galvanic anode assembly is placed within the interior of or exterior to the fuel storage tank and is surrounded by a layer of hydrophilic gel. The hydroph... | 04/09/1996 |
| 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 hollow casing having a perforate section, the hollow casing ... | 05/16/1995 |
| 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 |
| 4987037 | Galvanic coating with ternary alloys containing aluminum and magnesium Galvanic protection of steel is provided by means of coupling thereto of ternary alloys of Al/2.5 to 4% wt. Mg, 0.5 to 35% wt. Si, and Al/2.5-4% wt. Mg, 0.5 to 3.5% wt. Ge with teachings of steel having either alloy coupled thereto, as well as the alloys ... | 01/22/1991 |
| 4877354 | Pipeline anode Providing circumferential grooves in bracelet-type anodes on a pipeline provides for preservation of anode effectiveness during bending of the pipeline, such as in reeling operations.... | 10/31/1989 |
| 4863578 | Corrodible link for cathodic protection systems In a system for cathodically protecting an underground metallic structure where a sacrificial anode material encasing a metal core is in electrical communication with the structure, the core can be automatically and galvanically disconnected from electric... | 09/05/1989 |
| 4809769 | Engine coolant flush-filtering using external gas pressure A method for rapid cleaning of an internal combustion engine cooling system includes: forcing the coolant liquid from the cooling system to the exterior of that system, treating the coolant liquid in a zone or zones outside the cooling system, said treati... | 03/07/1989 |
| 4793403 | Engine coolant flush-filtering, using external gas pressure A method for rapid cleaning of an internal combustion engine cooling system includes: (a) forcing the coolant liquid from the cooling system to the exterior of that system, (b) treating the coolant liquid in a zone or zones outside the cooling system, sai... | 12/27/1988 |
| 4786383 | Cathodic protection system for a water heater tank A cathodic protection system for a water heater tank incorporating a resistor anode assembly. The steel water heater tank is provided with an opening and an internally threaded spud is secured to the outer surface of the tank bordering the opening. An ano... | 11/22/1988 |
| 4623435 | Backfill for magnesium anodes A backfill composition for use with sacrificial magnesium anodes used in the cathodic protection of ferrous metal structures comprises an anion-releasing material capable of releasing fluoride, phosphate or zincate ions in water-soluble form and a magnesi... | 11/18/1986 |
| 4609307 | Anode pod system for offshore structures and method of installation An anode pod system for cathodically protecting offshore structures and method of installing the system in which a set of anode pod units are individually placed on the ocean floor adjacent an offshore structure. Each anode pod unit comprises a plurality ... | 09/02/1986 |
| 4544465 | Galvanic anodes for submergible ferrous metal structures This invention provides a detachable sacrificial anode unit comprising a rigid core, e.g. a tubular steel member, and a body of sacrificial anode material, e.g. metals and alloys including zinc, aluminum and magnesium, surrounding and supported by said ri... | 10/01/1985 |
| 4511444 | Backfill for magnesium anodes A backfill composition for use with sacrificial magnesium anodes used in the cathodic protection of ferrous metal structures comprises an anion-releasing material capable of releasing fluoride, phosphate or silicate ions in water-soluble form and a magnes... | 04/16/1985 |
| 4484839 | Method and apparatus for installing anodes on steel platforms at offshore locations A method and apparatus is provided for supplementing the substructure of an offshore platform within, or in the vicinity of, the well conductors of the platform so as to add large numbers of anodes distributed vertically within the platform adjacent the w... | 11/27/1984 |
| 4484840 | Method and apparatus for installing anodes on steel platforms at offshore locations A method and apparatus for supplementing the substructure of an offshore platform within, or in the vicinity of, the well conductors of the platform so as to add large numbers of anodes distributed vertically within the platform adjacent the well conducto... | 11/27/1984 |
| 4427517 | Underground backfill for magnesium anodes A mixture of CaSO3 and bentonite, where the bentonite contains a substantial amount of alkaline earth metal bentonite, e.g., Ca-bentonite, is useful as a backfill composition for underground magnesium galvanic anodes. The backfill may optionall... | 01/24/1984 |
| 4318787 | Sacrificial anode composition in cathodic protection process A composition which is particularly suitable for providing cathodic protection of metal structures is disclosed. The composition comprises a major amount of particulate anode material and a minor amount of a thixotropic carrier material. A method of using... | 03/09/1982 |
| 4290868 | Iron plumbing corrosion minimizing method A method of minimizing corrosion in an iron plumbing system of the non-recirculating type through which water intermittently flows by interposing a magnesium anode therein that is electrically connected thereto to provide a galvanic couple. The magnesium ... | 09/22/1981 |
| 4288500 | Electrochemically active aluminum alloy and composite An electrochemically active aluminum alloy characterized in that it consists essentially of, per 100 parts of weight of aluminum, 0.01-1 parts of weight of gallium and/or indium and in that it consists essentially of 0.01-1 parts of weight of phosphorous.... | 09/08/1981 |
