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| Number | Title | Issue Date |
| 7854832 | Signal processing device and control unit An input terminal is electrically connected to a contact point. An anti-corrosion current supplying section is operable to supply an anti-corrosion current to the contact point through the input terminal so as to remove corrosion in the contact point. A series resis... | 12/21/2010 |
| 7794583 | Synergistic corrosion management systems for controlling, eliminating and/or managing corrosion The present invention generally relates to synergistic corrosion management systems designed to deliver two or more different types of corrosion inhibiting compounds (e.g., two or more different types of corrosion inhibiting compounds) to an enclosure, and to method... | 09/14/2010 |
| 7422789 | Cathodic protection coatings containing carbonaceous conductive media A cathodic protection polymeric compound is disclosed. The compound has flowable material to serve as a binder, carbonaceous conductive media dispersed in the flowable material, sacrificial metal particles also dispersed in the flowable material. The carbonaceous co... | 09/09/2008 |
| 7332069 | Cathodic corrosion protection powder coating composition and method The present invention provides a curable cathodic corrosion protection powder coating, which comprises a thermosetting resin, a zinc borate compound, a curing agent in an amount effective to cure the coating. Further, the present invention also provides a method of ... | 02/19/2008 |
| 7318889 | Apparatus, system and method for extending the life of sacrificial anodes on cathodic protection systems An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and electrically connected to one or more anodes, wherein the anodes are less noble than the conductive stru... | 01/15/2008 |
| 7317321 | Methods and systems for automated pipeline testing A method for testing effectiveness of a cathodic protection device configured to apply at least one voltage across an underground structure and a reference point is described. The method includes providing a sample of the material from which the underground structur... | 01/08/2008 |
| 7309414 | Method for measuring localized corrosion rate with a multi-electrode array sensor A method of measuring localized corrosion, using a multi-electrode array sensor. The method eliminates the effect of internal current in corroded electrodes, and thus provides a more accurate corrosion measurement. In one embodiment, the potential of a common node o... | 12/18/2007 |
| 7285203 | Method and apparatus for instrumental analysis in remote locations The present invention provides a method and apparatus for instrumental analysis in remote locations. In one embodiment, the present invention provides a method of controlling cathodic protection being applied to a metal structure having a surface disposed in an elec... | 10/23/2007 |
| 7279087 | Method for protecting metal-containing structures, deposited on substrate against corrosion A method for protecting metal-containing structures, in particular electrically conductive structures, deposited on a substrate, against corrosive attacks, in particular electrocorrosion attacks. The method applies at least temporarily to the structure a passivation... | 10/09/2007 |
| 7264707 | Corrosion inhibitor materials for use in combination with cathodic protectors in metallic structures A corrosion inhibitor composition for use in combination with cathodic protection of metallic structures includes between about 5 and 80 percent by weight cyclohexylammonium benzoate; between about 1 and 10 percent by weight monoethanolammonium benzoate; between abo... | 09/04/2007 |
| 7254450 | Atraumatic sensor lead assemblies The invention is directed to lead configurations for sensors that allow for less invasive sensor replacement procedures. In one configuration, a sensor lead assembly includes an outer lead body and an inner lead including a sensor such as an electrochemical glucose ... | 08/07/2007 |
| 7241374 | Pulsed electric field method and apparatus for preventing biofouling on aquatic surfaces An electrode system for preventing biofouling of a surface either is applied directly onto the surface of an aquatic vehicle or structure, if the surface is non-conducting; or is applied onto an insulating paint layer on the surface, if the surface is conducting; or... | 07/10/2007 |
| 7211173 | System 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 |
| 7198707 | Apparatus 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 |
| 7198706 | Method for inhibiting corrosion of metal The present invention generally provides a method for prevention of corrosion in a metal object by inducing a surface current over the entire surface of the metal object. The surface current can be induced by direct or indirect application of electrical waveforms ha... | 04/03/2007 |
| 7192450 | Porous membranes for use with implantable devices A membrane for implantation in soft tissue comprising a first domain that supports tissue ingrowth, disrupts contractile forces typically found in a foreign body response, encourages vascularity, and interferes with barrier cell layer formation, and a second domain ... | 03/20/2007 |
| 7189319 | Axial current meter for in-situ continuous monitoring of corrosion and cathodic protection current First and second axial current meters (ACM) are mechanically connected to a well casing just above and below a corrosive zone and a master axial current meter (MACM) is connected to the casing at the earth's surface, the MACM periodically obtaining measurements of a... | 03/13/2007 |
| 7186327 | Method and apparatus for scaling control and in-situ cathodic protection A method and apparatus wherein an electrically conductive element is placed inside a previously installed metallic water vessel such as a supply pipe or well. A direct current voltage is then applied between the element and the conductive wall of the vessel. The con... | 03/06/2007 |
| 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 |
| 7147768 | Electrochemical scale inhibition A process of reducing scaling of a metal surface exposed to an aqueous solution from which scale may form after a period of exposure. The process comprises applying a cathodic potential to the surface for at least some of the period of exposure. In some cases, e.g. ... | 12/12/2006 |
| 7139613 | Implantable medical device communication system with pulsed power biasing An implantable medical device communication system communicates information between an implantable medical device and at least one slave device by way of a two-wire bus. Slave devices may include remote sensors, actuators and other implantable medical devices. The i... | 11/21/2006 |
| 7134999 | Optimized sensor geometry for an implantable glucose sensor An implantable sensor for use in measuring a concentration of an analyte such as glucose in a bodily fluid, including a body with a sensing region adapted for transport of analytes between the sensor and the bodily fluid, wherein the sensing region is located on a c... | 11/14/2006 |
| 7131877 | Method for protecting a marine propulsion system An electrically conductive coating is provided on a housing structure of a marine propulsion system. By impressing a current on the electrically conductive coating, which can be a polymer material, the housing structure is used as an anode in a cathodic protection s... | 11/07/2006 |
| 7064459 | Method of inhibiting corrosion of a component of a marine vessel A method for inhibiting galvanic corrosion of marine propulsion components impresses an electronic current into the protected component and causes the protected component to act as a cathode in a galvanic circuit which comprises a conductor, such as a ground wire co... | 06/20/2006 |
| 7025013 | Multilayered submersible structure with fouling inhibiting characteristic A multilayered submersible structure has an outer coating that is disposed in contact with water in which the structure is submerged, a current distribution layer or charge distribution layer, an electrical conductor connectable in electrical communication to a sour... | 04/11/2006 |
| 7013178 | Implantable medical device communication system An implantable medical device communication system communicates information between an implantable medical device and at least one slave device by way of a two-wire bus. Slave devices may include remote sensors and other implantable medical devices. The implantable ... | 03/14/2006 |
| 6973890 | Self-adaptive system for an apparatus which inhibits fouling of an underwater surface A system is provided which automatically calibrates a marine fouling prevention system. It responds to movements between fresh and saltwater bodies of water, detects damage to the hull or other submerged surface, and responds to the use of the fouling prevention sys... | 12/13/2005 |
| 6968236 | Ceramic cardiac electrodes A cardiac electrode termination pair system that is particularly compatible with Magnetic Resonance Imaging (MRI) procedures. The electrodes include tip and ring electrodes made of a body-compatible ceramic on which is applied via electroplating, sputtered or the li... | 11/22/2005 |
| 6955746 | Corrosion-inhibited system and method for providing a utility service to a plurality of consumers A corrosion-inhibited system for providing a utility service to a plurality of consumers includes a plurality of metallic utility service structures, each utility service structure having components buried in a common electrolyte and electrically connected to each o... | 10/18/2005 |
| 6916983 | Grounding electrode A grounding electrode suited for installation in very hard or rocky soil is a long conductive metal rod having a drilling bit at one end and a head adapted to mate with a drilling tool, preferably a hammer drill. The grounding electrode, together with a suitable con... | 07/12/2005 |
| 6875336 | Process and apparatus for preventing oxidation of metal An apparatus for prevention of corrosion in metal objects uses a capacitively coupled fastener or pad attached to a metal body being protected from corrosion. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The positive ter... | 04/05/2005 |
| 6811681 | Semiconductive corrosion and fouling control apparatus, system, and method An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and coated with a semiconductive coating, where the corrosion is controlled by a controllable filter and a c... | 11/02/2004 |
| RE38581 | Pulsed cathodic protection system and method A cathodic protection system for protecting buried conducting structures, subject to corrosion such as well casings, pipe lines and the like, utilizes a plurality of pulsed D.C. current sources with the negative output terminal of each source connected to a separate... | 09/14/2004 |
| 6744265 | Automated cathodic protection monitor and control system An automated, remote control/monitoring system for a cathodic protection system for a buried metallic object based on monitoring multiple coupon test stations, buried next to the metal object, by a central processor, which can individually control multiple cathodic ... | 06/01/2004 |
| 6726831 | Corrosion protection of electrically heated pipe-in-pipe subsea pipeline Apparatus and method for providing corrosion protection of subsea pipe-in-pipe electrically heated pipeline are provided. The exterior surface of the outer pipe is coated with a thick protective coating in and near the splash zone and near the bulkhead of the heated... | 04/27/2004 |
| 6674286 | Methods and apparatus for measuring electrical properties of a ground using a graphite electrode Methods and apparatuses for measuring an electrical property of the ground. The apparatus includes a graphite electrode. The graphite electrode includes a graphite body and a first and second opening. The first opening extends longitudinally throughout th... | 01/06/2004 |
| 6582587 | Cathodic protection design method, current mapping and system Numerical techniques such as the finite element method (FEM) are used to model the current and voltage distribution in concrete structures such as bridges. The geometric arrangement of groundbeds and the ideal locations for the electrical contacts vis-a-v... | 06/24/2003 |
| 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 |
| 6562228 | Ultrasonic pickling method and pickling device The present invention pertains to: a method of ultrasonic pickling by impressing a protective potential of not less than -300 mV baser than the corrosion potential of an ultrasonic diaphragm installed in a pickling solution on the ultrasonic wave imposing... | 05/13/2003 |
