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Class 204/196.18 - More than half of anode is or has coating, covering, or shield


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Apparatus having a positive electrode serving as or provided
No. of patents: 58
Last issue date: 06/28/2011


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NumberTitleIssue Date
7967959Cathodic protection method and apparatus
A cathodic protection system for use in an electrolyte includes a protected structure to be at least partially immersed in the electrolyte, at least one sacrificial anode to be at least partially immersed in the electrolyte and electrically connected to the protecte...
06/28/2011
7905992Submerged surface with conductive nanoparticles
An electrically conductive surface of a submerged object comprises a polymer matrix, such as a resin, with a plurality of electrically conductive nanoparticles suspended within the polymer. The nanoparticles are preferably smaller than 100 nanometers in their minimu...
03/15/2011
7905993Corrosion control method and apparatus for reinforcing steel in concrete structures
Mixed-metal-oxide (MMO) coated precious-metal tape is installed directly on concrete surfaces using an electrically conductive adhesive, thereby obviating the need for slots, holes, cementitious grout or additional concrete. The electrically conductive adhesive is p...
03/15/2011
7879204Rejuvenateable cathodic protection anodes for reinforcing steel in concrete and soil
An anode configured for the cathodic protection of reinforced concrete structures and underground metallic structures against corrosion comprises a hollow, mixed-metal-oxide (MMO) coated form, the form having a wall with intentional gaps therethrough. A humectant is...
02/01/2011
7527714Water heater anode and mounting fixture
An anode is mounted to the top of a water heater tank which has a spud with external threads welded to the top thereof. The spud extends above insulation which surrounds the water tank and covers the top of the water heater. An anode rod is inserted into the water t...
05/05/2009
7438787Impressed 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
7431809Electrode 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
7422665Anode for cathodic protection
An anode for use in cathodic protection of steel in concrete is formed from an electrically conductive material such as zinc and an ionically conductive material which is preferably a humectant and/or has a pH greater than 12 to enhance current flow. The materials a...
09/09/2008
7381312Cathodic protection system for a marine propulsion device with a ceramic conductor
A ceramic conductor is supported by an electrically insulative support member for attachment directly to a marine propulsion drive and for use as either an anode or electrode in a corrosion prevention system. The ceramic conductor is received within a depression for...
06/03/2008
7374643Composite 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
7329336Stabilizer 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
7276144Cathodic 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
7252469Rivet nut with machinable head and method of making a vehicle body
A method of securing body panels to a space frame of a vehicle is disclosed. Body panels are secured to rivet nuts that are assembled to frame members. The location of the rivet nuts or rivet nuts supporting surface is measured and the rivet nuts are milled or machi...
08/07/2007
7226532Cathodic 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
7211173System 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
7198707Apparatus 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
7189312Under 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
7186320Submersible 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
7160433Cathodic 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
6958116Cathodic 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
6692633Sacrificial 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
6572760Cathodic 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
6514401Anti-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
6217742Cathodic 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
6214203Anodic 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
6200397Method and apparatus for strip anode wrapping for cathodic protection of tubular members
A novel method and apparatus to apply a corrosion protection in the form of a zinc (or other sacrificial anodic material) tape to a tubular member such as pipe or coiled tubing to used as an underground or underwater pipeline or flow line is disclosed. Th...
03/13/2001
6165346Cathodic 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
6120675Electrochemical method and electrode
An electrochemical electrode of a tube of porous titanium suboxide with a contact connection to an electrical supply....
09/19/2000
5885427Cast iron anode and method of making
A solid high silicon cast iron elongated anode has a midpoint electrical connection keeping the connection as far as possible from the ends to combat the deleterious pencil effect. The anode is made by casting using a hollow or shell core to form a small ...
03/23/1999
5714045Jacketed 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
5643424Apparatus 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 system includes using a structure having an exposed zinc-cont...
07/01/1997
5512149Sacrificial anode device with optimized anode/cathode interface surface contact area
Metal corrosion which occurs under conditions of use is mitigated and controlled by a sacrificial anode device which can be easily attached to, and detached from the corrosion-prone object. In ambient applications, the anode and cathode components of the ...
04/30/1996
5475902Burial casket incorporating cathodic protection
A cathodic protection system for a burial casket comprises a sacrificial anode rod, nylon sleeves encircling the rod and metal straps positively positioned relative the sleeves and welded to the casket bottom. One of the sleeves encircles the resistor of ...
12/19/1995
4987037Galvanic 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
4915053Method and apparatus for cathodic protection of marine vessels
An improved sacrificial marine anode is adapted for installation on numerous different types of marine vessels. The anode is comprised of a plate of sacrificial metal formed with a pair of longitudinally aligned slots which are spatially separated from ea...
04/10/1990
4872860Sacrificial anode for marine propulsion units
A sacrificial anode (19, 47, 55, 61) is disposed in association with the trim cylinder unit (12) of a marine propulsion device and is positioned in the previously unused area between the aft cylinder (13) end and the rodeye (16) or the like on the piston ...
10/10/1989
4838208Cathodically protected water heater
A cathodically protected water heater which eliminates the need of a conventional anode rod. The water heater tank includes a cylindrical shell enclosed by upper and lower heads and a flue which is mounted within openings in the lower and upper heads. The...
06/13/1989
4830724Stamped metal anode cap assembly
An anode cap assembly comprising a stamped metal cap having a generally cylindrical inner section and a closed outer section. An anode rod formed of a metal electronegative to steel is disposed in the cylindrical inner section and the steel core wire of t...
05/16/1989
4783896Method of making cathodically protected water heater
A cathodically protected water heater which eliminates the need of a conventional anode rod. The water heater tank includes a cylindrical shell enclosed by upper and lower heads, and a gas burner is located beneath the lower head. The waste products of co...
11/15/1988
4738644Outboard motor attachment and method
An outboard motor drive shaft housing attachment apparatus includes at least one extended fin plate, having a raised front portion and a pair of angled side portion and an attachment bar shaped to fit an opening in the outboard motor shaft housing. The at...
04/19/1988
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