| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Process and apparatus for preventing oxidation of metal | US10010402 | 2001-12-07 | US06875336B2 | 2005-04-05 | Michael E. Lewis; Mark Swannie |
| 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 terminal of the source of DC voltage is connected to electronic circuitry that imparts pulses of low voltage DC through the capacitor to the fastener. These pulses of electrical current inhibit the oxidation of the metal object by providing a source of electrons to the oxidizing chemicals in contact with the metal. The electronic circuitry includes a reverse voltage protector to prevent the application of reverse source voltage. The circuitry also includes a power conditioner to supply a constant DC voltage to a microprocessor. The microprocessor generates pulses of DC signals that are amplified by a pulse amplifier and imparted to the conductive facing of the pad. For larger objects, a first and second cable are attached to a metal object. A phase compensated signal is applied to each cable to provide a phase synchronous signal at the metal object. The invention also includes a battery voltage monitor and a power indicator to indicate battery level. When the battery voltage drops below a reference level, the microprocessor senses this low voltage condition and shuts off operation of the pulse amplifier, thereby conserving battery power. | ||||||
| 22 | Water treatment system and water heater with cathodic protection and method | US10133989 | 2002-04-26 | US06871014B2 | 2005-03-22 | Christian Pierre |
| A water heater comprising a housing defining a water heating chamber, at least a portion of the housing being metallic, and a metallic heating element disposed in the housing for heating the water, wherein the metallic portion of the housing and a metallic heating element are electrically connected such that the metallic portion of the housing is cathodic and the metallic heating element is anodic and current flows from the metallic heating element, through the water, to the metallic portion of the housing. A system for treating water is also disclosed and comprises the water heater and a collector disposed in the housing for collecting solid precipitates deposited from the water. Methods for heating and treated water are also disclosed. | ||||||
| 23 | Semiconductive polymeric system, devices incorporating the same, and its use in controlling corrosion | US09887024 | 2001-06-25 | US20020195353A1 | 2002-12-26 | David B. Dowling |
| A semiconductor system is provided that uses semiconductive organic polymers, electronics and semiconductor technology to provide a wide array of semiconductor components and a system of preventing corrosion of a surface of a metal structure in contact with a corrosive environment involving: (a) a semiconductive organic polymer coating in conductive contact with at least part of the surface; and (b) an electronic filter for filtering corrosive noise and a method of preventing corrosion using the system. | ||||||
| 24 | Process and apparatus for preventing oxidation of metal | US09527552 | 2000-03-17 | US06331243B1 | 2001-12-18 | Michael E. Lewis |
| 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 terminal of the source of DC voltage is connected to electronic circuitry that imparts pulses of low voltage DC through the capacitor to the fastener. These pulses of electrical current inhibit the oxidation of the metal object by providing a source of electrons to the oxidizing chemicals in contact with the metal. The electronic circuitry includes a reverse voltage protector to prevent the application of reverse source voltage. The circuitry also includes a power conditioner to supply a constant DC voltage to a microprocessor. The microprocessor generates pulses of DC signals that are amplified by a pulse amplifier and imparted to the conductive facing of the pad. The invention also includes a battery voltage monitor and a power indicator. When the battery voltage drops below a reference level, the microprocessor senses this low voltage condition and shuts off operation of the pulse amplifier, thereby conserving battery power. | ||||||
| 25 | Corrosion control of dissimilar metals | US249228 | 1994-05-25 | US5445719A | 1995-08-29 | Robert S. Boiko |
| A corrosion inhibiting system for protecting joined dissimilar metals which are contacted by an electrolyte includes an anode electrode located in the electrolyte and adjacent to the less noble metal, and a cathode electrode connected to the more noble metal, the anode electrode and the cathode electrode being connected to the positive output and negative output, respectively, of a source of direct current for causing a direct current to flow through the joined dissimilar metals to inhibit the flow of corrosion producing local current between the dissimilar metals. The corrosion inhibiting system is employed in a hot water heater having a glass lined steel tank with a copper bottom head. | ||||||
| 26 | Prevention of hydrogen embrittlement of metals in corrosive environments | US380936 | 1982-05-21 | US4488578A | 1984-12-18 | Alfred C. C. Tseung; Ho C. Chan; Nani B. Fouzder; Thurairajah Sriskandarajah |
| Metal substrates in corrosive environments, such as gas and oil pipelines, are normally prone to embrittlement caused by absorption of the hydrogen atoms cathodically evolved during various corrosion processes. This is substantially prevented by providing an active substance in the vicinity of the metal substrate, and in electrical contact therewith, the active substance being a sulphide or mixed sulphide of a metal of Group Vb, VIb or VIIb of the Periodic Table or of a rare earth metal, especially WS.sub.2 and MoS.sub.2. The active substance is preferably applied as or in a coating on the surface of the substrate, with an overcoating of, for example, a thermosetting resin, preferably being employed for mechanical and environmental protection. | ||||||
| 27 | Anodically polarized surface for biofouling and scale control | US963611 | 1978-11-24 | US4256556A | 1981-03-17 | John E. Bennett; Joseph E. Elliott |
| Biofouling and scale control in conductive aqueous systems is effected on metal, preferably valve metal such as titanium, surfaces on which such fouling normally occurs by applying thereto a stable electrocatalytic coating, anodically polarizing said valve metal coating such that only oxygen is evolved at the surface thereof, preferably at a rate at least about 4.66 millimoles per square meter per hour without evolution of any chlorine. | ||||||
| 28 | Resistor anode for metal tank | US772517 | 1977-02-28 | US4093529A | 1978-06-06 | Carl G. Strobach |
| The present invention is generally related to a new construction for a resistor-type anode. Sacrificial anodes are used in a variety of applications to protect metallic structures from corrosion. In order to control the rate of consumption of the sacrificial anode, a resistor is placed in series between the anode and the tank (cathode). This invention relates to an improved resistor anode construction for use in a tank, for example a hot water tank. The anode includes a core wire with a spring welded to the exposed end. The spring is biased against a disc shaped resistor. The assembly is retained by a metal cap swaged over an insulating sleeve fitted on the end of the anode. | ||||||
| 29 | Method for increasing the resistance to the fretting corrosion of the friction surface of two ferrous metallic members | US3518740D | 1967-07-06 | US3518740A | 1970-07-07 | CAUBET JACQUES JEAN |
| 30 | Heat treatment of aluminum base alloys containing tin | US37654564 | 1964-06-19 | US3196057A | 1965-07-20 | PRYOR MICHAEL J; KEIR DOUGLAS S; SPERRY PHILIP R |
| 31 | SCHELLE ZUR BEFESTIGUNG VON BAUTEILEN | EP11724550.6 | 2011-05-27 | EP2591260A1 | 2013-05-15 | HISS, Helmut; CASPARI, Jochen |
| A clamp for securing components, in particular string-like or linear structural members, like pipelines, hoses, or cables, has at least one clamp part (3). The clamp part outer contour (4) delimits at least partially a receiving space (5) for receiving the component. The one clamp part (3) has a mechanism (6) for minimizing corrosion, in particular, crevice corrosion, at every component that is held. The mechanism has at least one sacrificial element (7) that is visibly consumed with the onset of corrosion and continued duration of use of the clamp fastener. The respective sacrificial element (7) is placed, as an independent component, on the outer contour (4) of the clamp part (3). | ||||||
| 32 | Korrosionsschutzanordnung für Offshore-Stahlstrukturen sowie ein Verfahren zu seiner Aufbringung | EP11003636.5 | 2011-05-04 | EP2520721A1 | 2012-11-07 | Wobker, Hans-Günter Dr.; Mackowiak, Egon; Sagebiel, Bernd; Meyerrose, Christoph |
Korrosionsschutzanordnung (7) als Verkleidung (8) für ein Metallbauteil (3), dessen Anordnung im Wirkbereich eines Elektrolyts (4) in Form von Meerwasser vorgesehen ist. Erfindungsgemäß ist die Verkleidung (8) aus einem Blech gebildet, welches mit dem Metallbauteil (3) elektrisch leitfähig verbunden ist, wobei das Blech aus einem Metall besteht, das gegenüber dem Metallbauteil (3) edler ist und somit ein höheres Potential aufweist. Somit stellt das Blech als Verkleidung des Metallbauteils (3) eine geschlossene umfangsseitige Umhüllung von Teilen der Stahlstruktur (1 b) dar.
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| 33 | MULTILAYERED SUBMERSIBLE STRUCTURE WITH FOULING INHIBITING CHARACTERISTIC | EP05754806.7 | 2005-06-01 | EP1781533A1 | 2007-05-09 | STAERZL, Richard, E.; MISORSKI, Christopher, J.; SHETH, Mitesh, B.; ANDERSON, Kevin, R.; NIANEKEO, Corey, N. |
| A multilayered submersible structure has an outer coating (40) that is disposed in contact with water in which the structure (14) is submerged, a current distribution layer or charge distribution layer (50), an electrical conductor (26, 28) connectable in electrical communication to a source of electrical power (20), and a support structure. By selectively energizing the current distribution layer, or charge distribution layer, chemical and ionic changes can be caused in the water immediately adjacent the outer coating or layer to inhibit the growth of marine organisms on the outer surface of the submersible structure. | ||||||
| 34 | Method for inhibiting corrosion of metal | EP04017268.6 | 2004-07-22 | EP1598445A3 | 2006-06-28 | Lewis, Michael E. |
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 having AC components generated from a circuit. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The positive terminal of the source of DC voltage is connected to the electronic circuit that imparts electrical waveforms of low voltage DC to the conductive terminal connected to the metal body. Alternate methods of inducing surface currents include direct capacitor discharge through the metal body, or movement of an electromagnetic field over the metal body, or by generating an RF signal attached to a transmitting antenna such that the transmitted signal is received by the metal body.
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| 35 | Method for inhibiting corrosion of metal | EP04017268.6 | 2004-07-22 | EP1598445A2 | 2005-11-23 | Lewis, Michael E. |
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 having AC components generated from a circuit. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The positive terminal of the source of DC voltage is connected to the electronic circuit that imparts electrical waveforms of low voltage DC to the conductive terminal connected to the metal body. Alternate methods of inducing surface currents include direct capacitor discharge through the metal body, or movement of an electromagnetic field over the metal body, or by generating an RF signal attached to a transmitting antenna such that the transmitted signal is received by the metal body. |
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| 36 | Vorrichtung zum Schutz metallischer Oberflächen beispielsweise von Gasbrennern gegen Korrosion und/oder Verkalkung | EP98204500.7 | 1998-07-03 | EP0937788B1 | 2002-11-20 | Bienzle, Marcus, Dr. |
| 37 | ELECTROCHEMICAL ANTIFOULING DEVICE COMPRISING UNDERWATER STRUCTURE AND METHOD OF PRODUCING UNDERWATER STRUCTURE USED FOR THE DEVICE | EP98940552.7 | 1998-08-26 | EP0985639A1 | 2000-03-15 | MATSUNAGA, Tadashi; NAKAYAMA, Tsuruo; WAKE, Hitoshi; OZAWA, Kin-ichi; NAKAMURA, Noriyuki; MURAKAMI, Nobuyuki; TAKAHASHI, Hiromichi; TAKIMOTO, Toshihiro; KADOI, Hideo |
An electrochemical stain prevention apparatus of a submerged structure comprising a submerged structure of which at least the stain prevention surface is formed of a conductive film that does not generate chlorine even by applying a potential of 5 V vs. SCE or less, a counter electrode located so as not to contact with the submerged structure, and a power supply unit for passing a direct current through the submerged structure having the conductive film formed thereon and the counter electrode. Aquatic organisms adhered to the surface of the conductive film can effectively be controlled by applying a potential of from 0.1 to 5 V vs. SCE to the submerged structure of such a stain prevention apparatus without generating chlorine. A potential applied to the conductive film of the submerged structure can be controlled with good accuracy by disposing a reference electrode between the submerged structure and the counter electrode. As the conductive film formed on the substrate of the submerged structure, a sprayed coating film made of a metal nitride can preferably be used. |
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| 38 | ELECTRIC ANTICORROSION METHOD AND APPARATUS | EP97929520 | 1997-07-03 | EP0913499A4 | 1999-09-29 | TAKEUCHI TOSHIHIRO; IMANAKA TADASHI |
| In an electric anticorrosion method in which the polarity of a metal material having a film thereon is set negative, a negative polarity set period of such a metal material immersed in an NaCl aqueous solution is rendered discontinuous, and a positive polarity set period in which the polarity of the metal material is set positive is interposed between a preceding negative polarity set period and a subsequent negative polarity set period. This polarity switching is carried out by a polarity switch relay provided between the metal material and a DC power source. Although the corrosion of the metal material is prevented in a negative polarity set period, the separation of a film starting at a damaged portion occurs. In a positive polarity set period, an electrolytic product is formed on an exposed portion of the metal material, and the separation of the film in the subsequent negative polarity set period is prevented by this electrolytic product. This enables the corrosion of a film-carrying metal material to be prevented, and the separation of the film ascribable to the corrosion prevention of the metal material to be minimized. | ||||||
| 39 | Vorrichtung zum Schutz metallischer Oberflächen beispielsweise von Gasbrennern gegen Korrosion und/oder Verkalkung | EP98204500.7 | 1998-07-03 | EP0937788A2 | 1999-08-25 | Bienzle, Marcus, Dr. |
Die Erfindung betrifft eine Vorrichtung zum Schutz metallischer Oberflächen eines Gasheizgerätes gegen Korrosion, wobei die metallischen Oberflächen im Bereich des Abgastraktes angeordnet sind und an denen sich die im Abgas vorhandene Flüssigkeit in Form von Kondensat niederschlägt. Die metallischen Oberflächen können gegen Korrosion und/oder Verkalkung erfindungsgemäß auf einfache Weise dadurch geschützt werden, daß an die metallischen Oberflächen eine Stromquelle angeschlossen ist, die Elektronen direkt in die metallischen Oberflächen einbringt. |
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| 40 | Clamp for securing components | US12805391 | 2010-07-28 | US08550411B2 | 2013-10-08 | Helmut Hiss; Jochen Caspari |
| A clamp for securing components, in particular string-like or linear structural members, like pipelines, hoses, or cables, has at least one clamp part (3). The clamp part outer contour (4) delimits at least partially a receiving space (5) for receiving the component. The one clamp part (3) has a mechanism (6) for minimizing corrosion, in particular, crevice corrosion, at every component that is held. The mechanism has at least one sacrificial element (7) that is visibly consumed with the onset of corrosion and continued duration of use of the clamp fastener. The respective sacrificial element (7) is placed, as an independent component, on the outer contour (4) of the clamp part (3). | ||||||
