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| Number | Title | Issue Date |
| 7258689 | Silver alloys for use in medical, surgical and microsurgical instruments and process for producing the alloys Alloys for medical, surgical and microsurgical instruments are proposed which comprise 0.01% to 20% by weight of germanium, from 0-25% of shallow hydrogenic and/or non-hydrogenic acceptor dopants in terms of weight ratio in relation to germanium, from 0% up to 20% b... | 08/21/2007 |
| 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 metal material in alkali metal hydroxide evaporator that is... | 12/30/2003 |
| 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 |
| 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 |
| 6361896 | Device and method for combined purification and compression of hydrogen containing CO and the use thereof in fuel cell assemblies The invention relates to a device for combined purification and compression of hydrogen containing CO. Said device comprises a polymer electrolyte membrane (PEM) cell with a proton-conducting polymer membrane (3), an anode on one side of the membrane and ... | 03/26/2002 |
| 6254743 | Expanded titanium metal mesh This invention relates generally to an electrically conductive valve metal mesh of extreme void fraction. More particularly the invention relates in a most important aspect to an application thereof for an electrode structure in such a way as to prevent t... | 07/03/2001 |
| 6200397 | Method 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 |
| 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 |
| 6056867 | Ladder anode for cathodic protection A flexible, nonstretchable, titanium, ladder anode for cathodic protection of steel reinforced concrete structures formed of multiple titanium strips including multiple electric current-carrying titanium strips. Ladder anodes of titanium without an electr... | 05/02/2000 |
| 6001225 | Catalytically coated anodes Non self-passivating cathodic protection anode materials such as graphite and high silicon iron are treated to improve corrosion resistance. Anodically stable oxide coatings such as cobalt oxide (cobalt spinnel) or precious metal oxides are received on th... | 12/14/1999 |
| 5964992 | Reference electrode for monitoring steel-in-concrete potentials A graphite reference electrode for use in the cathodic protection of steel embedded in concrete has been produced with a stable catalyzed structure that when equilibrated with air or oxygen and an electrolyte reaches a reproducible and reversible redox po... | 10/12/1999 |
| 5667649 | Corrosion-resistant ferrous alloys for use as impressed current anodes Impressed current anodes such as cathodic protection anodes comprise iron based alloys including less than 70% iron and less than 0.1% carbon. Additional components may include molybdenum, chromium, nickel and others. The iron based alloy may itself compr... | 09/16/1997 |
| 5531873 | Electrode arrangement to be used in the cathodic protection of concrete structures and a fixing element The invention relates to a method for fixing an electrode arrangement to be used in the cathodic protection of concrete structures. In the method, an anode (20) is mounted in a framework (11) and the framework with its anodes is mounted on the concrete st... | 07/02/1996 |
| 5512153 | Corrosion protection system An impressed current corrosion protection system comprises a distributed anode in the form of a conductive core (4) covered with a conductive polymeric coating (6) and surrounded by packed coke (8) contained within a polymeric jacket (18). This outer jack... | 04/30/1996 |
| 5476576 | Impressed current cathodic protection system A system for impressed current cathodic protection of a structure having a corrodible metal reinforcing member comprising: a) an electron source having a positive terminal and a negative terminal connected to said corrodible metal reinforcing member such ... | 12/19/1995 |
| 5451307 | Expanded metal mesh and anode structure This invention relates generally to an electrically conductive valve metal mesh of extreme void fraction. More particularly the invention relates in a most important aspect to an application thereof for an electrode structure in such a way as to prevent t... | 09/19/1995 |
| 5423961 | Cathodic protection system for a steel-reinforced concrete structure An anode for cathodically-protected steel-reinforced concrete is embedded in an ion-conductive overlay on the concrete structure. The anode comprises at least one sheet of highly expanded valve metal mesh having a pattern of voids defined by a network of ... | 06/13/1995 |
| 5366600 | Cementitious composition A cementitious composition containing metal-coated fibres especially metal-coated carbon fibres in an amount of 0.1 up to 5% by weight relative to the weight of the cement component of the composition. The composition can be used as a conductive layer in ... | 11/22/1994 |
| 5364511 | Cathodic protection system and a coating and coating composition therefor Cathodic protection system for the cathodic protection of a reinforced concrete structure, which system comprises a concrete structure containing steel reinforcement bars and an electrically-conductive coating bonded to an external surface and in electric... | 11/15/1994 |
| 5338417 | Cathodic corrosion protection for an aluminum-containing substrate Cathodic corrosion protection for surfaces of metallic substrates is provided by carrying out electrolysis, switching off the electrolysis, observing a control voltage and switching on the electrolysis again when the control voltage equals a specified cri... | 08/16/1994 |
| 5198088 | Apparatus for the preparation of alkali metal monofluorhosphates An apparatus for the preparation of alkali metal monofluorophosphates is disclosed. The apparatus includes a melting crucible of a platinum/rhodium alloy, devices for feeding the alkali metal fluoride and alkali metal metaphosphate or alkali metal polypho... | 03/30/1993 |
| 5167785 | Thin electrodes A thin strong anode is made with an embedded end of a multi-strand single sleeve insulated wire and is molded from a three part composition of polymer, carbon and silica gel. The anode is thin, about 3/32 of an inch thick, and about an inch and a half in ... | 12/01/1992 |
| 5088432 | Anti-fouling system for substances in contact with seawater The current invention relates to an anti-fouling system for substances in contact with seawater which is constituted of the first conductive membrane that is coated on the outer side of the electric insulator mounted at the surface of the substance such a... | 02/18/1992 |
| 5062934 | Method and apparatus for cathodic protection A grid electrode for cathodic protection of steel rebar reinforced concrete structures comprising a plurality of valve metal strips having voids with an electrocatalytic surface and 2,000 to 7,000 nodes per square meter electrically conncected together to... | 11/05/1991 |
| 5026508 | Ground electrode backfill composition, anode bed 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 petroleum coke, micro-size carbon rods and high structure... | 06/25/1991 |
| 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 composed of a conductive polymer and which is at least 500 m... | 02/05/1991 |
| 4957612 | Electrodes for use in electrochemical processes Electrodes for electrochemical processes, especially anodes for the cathodic protection of metal substrates, e.g. reinforcing bars in concrete, comprise a conductive core which acts as a current-distributing member, an outer member which provides an elect... | 09/18/1990 |
| 4931156 | Distributive anode coating Cathodic protection to prevent corrosion of embedded steel, e.g. reinforcing rods in concrete, is obtained by applying a graphite-alkyl methacrylate composition to the exterior of the concrete.... | 06/05/1990 |
| 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.... | 05/01/1990 |
| 4915808 | Anode and capsule assembly for automotive cathodic protection A square blocked anode with first and second opposite flat faces and rectangular sidewalls joining the flat faces has a diagonal hole formed between one sidewall and a second face of the anode. Insulation is stripped from a distal end of a multiple strand... | 04/10/1990 |
| 4880517 | Catalytic polymer electrode for cathodic protection and cathodic protection system comprising same A catalytic polymer electrode compries a current conducting polymer body forming an electrode base which is provided with catalytic valve metal particles fixed to its surface. A current conducting body of carbon filled thermoplastic polymer is heated to s... | 11/14/1989 |
| 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 substrate, and/or enable the counter-electrode to be more eas... | 10/17/1989 |
| 4855027 | Carbosil anodes An anode for cathodic protection having a composition of carbon, silica gel and inert binders. The anode may be mounted on a surface by an adhesive and may be separated from the surface by an insulation layer. A plastic threaded fastener may be used to at... | 08/08/1989 |
| 4812212 | Apparatus for cathodically protecting reinforcing members and method for installing same A novel method and apparatus for cathodic protection of reinforced concrete structures includes an anode structure having an electrically conducting tape that is prevented from directly contacting the surface of the concrete structure. An electrically con... | 03/14/1989 |
| 4798658 | Device for the cathodic corrosion-protection of metal parts A device for the cathodic protection of metal parts in which electrodes and voltage source are used to charge positively an electrolyte in relation to the metal surface which is to be protected. The electrodes (1) are so designed that they extend linearly... | 01/17/1989 |
| 4740106 | Impressed current cathodic protection of off-shore platforms utilizing the tensioned anode ropes system The present invention concerns a system for cathodic protection of off-shore structures, by the impressed current method, which system comprises tubular anode assemblies (1, 1') coaxially applied onto power supply cables (4), supported by ropes (5) tensio... | 04/26/1988 |
| 4708888 | Coating metal mesh Coiled valve metal mesh of great void fraction and lengthy dimension and having a continuum of interconnected metal strands is coated with an electrocatalytic coating from liquid composition. The coating operation proceeds by contacting the mesh with liqu... | 11/24/1987 |
| 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.... | 03/03/1987 |
| 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 the flexible external casing (2) by means of spacers (3), wh... | 10/01/1985 |
| 4515673 | Electrode with anode active layer A titanium or niobium electrode substrate (which may be copper or steel cored) having on its surface a painted and fired anodically active layer for example of a platinum group metal, there being an interlayer of tantalum or an alloy containing more than ... | 05/07/1985 |
