Object Protection Patents (Class 204/196.01)
  • Patent number: 10428430
    Abstract: An improved marine anode sled comprises a single piece casting with high surface to weight ratio providing increased active surfaces and improved reliability. In one embodiment the anode weighs about 2,000 lbs and has an active surface area of about 5,000 square inches and a current output capacity of up to 160 amps. The improved anode has considerably higher current output than existing anode sleds with similar weight. Unlike known anode sleds, the entire exposed surface of new anode sled is anode material and passes current to a surrounding medium. The single piece casting eliminates structural failure when a frame of know anode sleds is damaged, and electrical failure when cables connecting multiple anodes are damaged. Two redundant lead cable are attached proximal to opposite corners to optimize reliability and electrical performance.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: October 1, 2019
    Inventor: Omidreza Moghbeli
  • Patent number: 10246354
    Abstract: A device for preparing washing water, belonging to the technical field of electro-chemical and membrane filtration water treatment. The device comprises a water container which is respectively provided with a water inlet and a water outlet; at least one pair of a cathode and an anode are arranged within the water container; a water-permeable porous membrane is clamped between the coupled cathode and anode with no gaps, and the area of the inside of the water-permeable porous membrane opposite the cathode or the anode is smaller than the area of the inside of the cathode or the anode opposite the water-permeable porous membrane. The device can generate washing water which contains a large a number of ultra-micro bubbles and strong oxidation factors and has excellent reducibility.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: April 2, 2019
    Assignee: DALIAN SHUANGDI INNOVATIVE TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventor: Zhibang Xiao
  • Patent number: 9963794
    Abstract: According to an aspect of the present invention, a hydrogen-containing water generating electrode includes a positive electrode that is a tubular conductor and includes a plurality of openings in a side portion, an insulator that is provided on an outer peripheral portion of the positive electrode and includes a plurality of openings, and a negative electrode that is a tubular conductor provided on an outer peripheral portion of the insulator and includes a plurality of openings in a side portion. The openings of the positive electrode and the openings of the negative electrode are larger than the openings of the insulator.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: May 8, 2018
    Assignee: THE CHUGOKU ELECTRIC POWER CO., INC.
    Inventors: Keisou Iwai, Masayuki Shimokatu, Suehiro Sakai
  • Patent number: 9911915
    Abstract: A multiphase selector includes a first electrode, a switching layer coupled to the first electrode, a capping layer coupled to the switching layer, and a second electrode coupled to the capping layer. The switching layer may include a matrix having a first, relatively insulating phase of a transition metal oxide; a second, relatively conducting phase of the transition metal oxide dispersed in the matrix; and a catalyst, located within the matrix, to interact with the first phase of the transition metal oxide to selectively form and position the second phase of the transition metal oxide within the matrix.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: March 6, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jianhua Yang, Yoocharn Jeon, Hans S. Cho
  • Patent number: 9909220
    Abstract: In a method of corrosion protection of rebar in concrete the sacrificial anode is held in place by wrapping a first wire around a first rebar portion and a second wire at second rebar portion and twisting together the first and second free ends to tension the wrappings. This can be used either on two separate rebars which are parallel or at right angles or can be used at longitudinally spaced positions on a single rebar where the rebar roughening prevents the two wrappings from sliding as the wires are tensioned by the twisting. In many cases a covering material such as a porous mortar is cast onto the outer surface of the anode and in this case the mortar and the wire are located such that the wire exits from the sacrificial anode at a position separate from the layer of covering material.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: March 6, 2018
    Assignee: Vector Corrosion Technologies Ltd.
    Inventor: David Whitmore
  • Patent number: 9068268
    Abstract: A discrete sacrificial zinc anode is fabricated from one or more slotted and slatted metal plates. The plates are fixed in a parallel planar configuration using conventional fasteners. One or more electrical connection wires are formed with a looped portion for spacing the anode assembly a predetermined distance from a steel reinforcing member.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: June 30, 2015
    Assignee: Jarden Zinc Products, LLC
    Inventors: Derek Tarrant, Bradley W. Epperson, Gary Sean Carter, Michael T. Mather
  • Patent number: 9005423
    Abstract: Communications systems are provided for use with an impressed current cathodic protection (ICCP) system having single or multiple ICCP components. A pipeline may be provided by connecting multiple pipeline sections together as an integrated pipeline where each section has an associated ICCP system. A communications signal comprising an AC signal is impressed on the pipeline and received by receivers associated with power supplies associated with each ICCP system. Upon reception of the AC signal, a controllable switch is operated within the power supplies to synchronously disconnect them from their power source and thereby enable accurate testing of the ICCP system.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: April 14, 2015
    Assignee: Itron, Inc.
    Inventor: Barry Cahill-O'Brien
  • Patent number: 8999138
    Abstract: The present invention includes an anodic device for reducing corrosion adapted to reduce corrosion of an object subject to corrosion having a base with a thickness and surface area, and a plurality of protrusions protruding from the base each having a thickness and surface area, wherein the device is configured to allow a current to flow between the device and the object subject to corrosion. The present invention also includes methods associated with the use of such devices.
    Type: Grant
    Filed: November 25, 2011
    Date of Patent: April 7, 2015
    Assignee: RGF Environmental Group, Inc.
    Inventor: Walter B. Ellis
  • Publication number: 20150083583
    Abstract: A partial surface treatment apparatus includes a first electrode member electrically connected to a treatment object including an outer circumferential surface and a circumferential groove, a second electrode member including an inner circumferential surface, a pair of annular-shaped elastic sealing members configured to seal a clearance between the outer circumferential surface and the inner circumferential surface, an accommodation portion accommodating each of the annular-shaped elastic sealing members, the annular-shaped elastic sealing members are movable in a diameter reduction direction, a pressure applying mechanism supplying a pressurized fluid to the annular-shaped elastic sealing members, the annular-shaped elastic sealing members are in pressure contact with the outer circumferential surface in a case where the annular-shaped elastic sealing members are moved in the diameter reduction direction, and a cutout formed at each of the annular-shaped elastic sealing members to be extended from an outer
    Type: Application
    Filed: September 18, 2014
    Publication date: March 26, 2015
    Applicant: Aisin Seiki Kabushiki Kaisha
    Inventor: Daishi KOBAYASHI
  • Publication number: 20150076000
    Abstract: The invention describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. Electrical current is passed through the working and counter electrodes. The current through the counter electrode is varied such that the electric potential of the working electrode is constant relative to the electric potential of the reference electrode. Also described is an apparatus for reducing or preventing microbes on an object using a potentiostatic device.
    Type: Application
    Filed: April 22, 2013
    Publication date: March 19, 2015
    Inventors: Mark Ehrensberger, Anthony A. Campagnari, Esther Takeuchi, Nicole Luke-Marshall
  • Patent number: 8961746
    Abstract: Cathodic protection of steel in concrete is provided by locating an anode assembly including both a sacrificial anode and an impressed current anode in contact with the concrete and providing an impressed current from a power supply to the anode. The impressed current anode forms a perforated sleeve surrounding a rod of the sacrificial anode material with an activated ionically-conductive filler material between. The system can be used without the power supply in sacrificial mode or when the power supply is connected, the impressed current anode can be powered to provide an impressed current system and/or to recharge the sacrificial anode from sacrificial anode corrosion products.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: February 24, 2015
    Assignee: Vector Corrosion Technologies Ltd.
    Inventors: George Sergi, Attanayake Mudiyanselage Gamini Seneviratne, David Whitmore
  • Publication number: 20150021169
    Abstract: A cathodic protection device enclosing a reference cell and a conductive media and having two coupon assemblies mounted, facing opposing direction, on an exterior surface thereof is disclosed. The coupon assemblies each have a disc-shaped coupon seated in a coupon jacket and are electrically coupled to a wire. The coupon jacket is generally patch-sized and defines a pocket in a first surface and a groove in a second, opposing surface thereof. The disc-shaped coupon is seated in the pocket and the wire is seated in the groove with the electrical junction therebetween aligned with an aperture connecting the pocket to the groove. A sealing material is used to form a watertight seal between the disc-shaped coupon and the pocket and fills the groove. The device includes a hydrophilic porous member having a first surface in communication with the conductive media and a second surface in communication with an external environment.
    Type: Application
    Filed: July 15, 2014
    Publication date: January 22, 2015
    Applicant: APS Materials, Inc.
    Inventor: Gregory P. Smith
  • Patent number: 8926802
    Abstract: A steel reinforced concrete protector in an anode cavity such as a cored hole, drilled hole or cut chase is disclosed. The protector includes a sacrificial anode assembly and a separate backfill. The sacrificial anode assembly includes a sacrificial metal element and an activator to maintain an activity of the sacrificial metal element and at least one spacer. The spacer prevents the sacrificial metal element and the activator from contacting the surface of the anode cavity. The spacer and the sacrificial metal element have a coupling mechanism which facilitates connection of the sacrificial metal element to the spacer. The backfill is a pliable and viscous material which contains an electrolyte and fills the spaces between the sacrificial anode assembly and the anode cavity wall. The invention also relates to a pre-packaged sacrificial anode assembly to increase the shelf life of the assembly.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: January 6, 2015
    Inventors: Gareth Kevin Glass, Nigel Davison, Adrian Charles Roberts
  • Publication number: 20140332373
    Abstract: A device for the cathodic protection of a metal wall against corrosion in a saline environment, includes an anode and means for connecting said anode to said wall. The anode has a higher electrochemical potential than the wall, wherein the anode is placed in a compartment delimited by a wall permeable to electrons and, optionally, to water. The device includes a porous outer layer made from a material selected from: polymeric materials, ceramic materials or hydrated inorganic materials and at least one porous layer having the ability to collect the cations emitted by the anode during the dissolution of same. The material forming the at least one layer is selected from osmotic membranes, active carbon, a cation exchange resin such as a zeolite, a cation-collecting polymer with nanofillers, cation-collecting mineral compounds such as phyllosilicates and inosilicates, cation-retaining nanofiltering semi-permeable organic microporous membranes.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventor: Serge PRIGENT
  • Publication number: 20140318984
    Abstract: In some embodiments, an ICCP system includes an AC-DC rectifier receiving AC power from an AC power source and providing a DC output having a constant voltage or a constant current, a cathode connection electrically coupling the AC-DC rectifier to a structure to be protected by the ICCP system, current-emitting anodes arranged in parallel and receiving the DC output from the AC-DC rectifier, and a controller communicating with the AC-DC rectifier to set a maximum value for the constant voltage or constant current of the DC output. In other embodiments, an ICCP system includes a converter assembly including an AC-DC rectifier and a rectifier chassis enclosing and environmentally sealing the AC-DC rectifier. The ICCP system also includes an environmentally-sealed controller communicating with the AC-DC rectifier and an environmentally-protected Input-Output connection assembly.
    Type: Application
    Filed: April 29, 2014
    Publication date: October 30, 2014
    Applicant: Transistor Devices, Inc. d/b/a TDI Power
    Inventors: Gary Mulcahy, John Santini
  • Patent number: 8828195
    Abstract: A Segmented Sacrificial Anode Assembly (SSAA) includes anode segments made from an anodic material containing an electrically conductive core with electrically conductive threaded female connectors at each end, Glass Reinforced Epoxy (GRE) isolators, and male threaded connectors. A number of the anode segments are connected by short male threaded connectors. A long male connector reaching through the isolator is used when connecting the SSAAs to a standing structure and an electrical cable is used to connect the SSAAs to a buried structure. An electrical lead is attached to a threaded post using pin brazing or Cadweld® and the threaded post is threaded into a recessed end threaded female connector of the SSAA. The recess is filled with two part epoxy. The anode segments may be selected from long, medium, and short anode segments to scale the SSAA for any given application.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 9, 2014
    Inventor: Omidreza Moghbeli
  • Patent number: 8821698
    Abstract: A multi purpose segmented Titanium Mixed Metal Oxide coated impressed current cathodic protection anode assembly (Ti MMO anode assembly). The Ti MMO anode assembly includes combinations selected from four anode components and four connection components. The various components may be assembled for different applications in liquid or soil environments for the prevention or reduction of corrosion and loss of structural integrity. For example, the Ti MMO anode assembly may be applied to protect pipelines, buried structures, piers and internal surface protection of tanks and vessels in different arrangements such as deep wells, shallow ground beds, or distributed individual anodes.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 2, 2014
    Inventor: Omidreza Moghbeli
  • Publication number: 20140224670
    Abstract: To provide an anode, corrosion-protecting structure of a concrete constructions using this, and a corrosion protection method capable of protecting electrical corrosion, with little generation of gas due to electrolysis of water or chlorine compounds, by decreasing as far as possible the amount of processing performed on the structural body in on-site construction work and suppressing the voltage that is conducted therethrough to a low level. [Solution] A corrosion-protecting structure (1) is constituted by attaching an anode (10) to the surface layer (3) of a corrosion-protecting body (4) through a first electrolyte layer (12) on one face of a conductive layer (11) formed as a sheet. The electrolyte is formed as a sheet. The first electrolyte layer (12) having adhesiveness is attached to the conductive layer (11) and the surface layer (3) of the corrosion-protecting body (4).
    Type: Application
    Filed: August 24, 2012
    Publication date: August 14, 2014
    Applicants: FUJIMOROI KOGYO CO., LTD., SHO-BOND CORPORATION
    Inventors: Yasuto Ishikawa, Shirou Yamamoto, Hirokazu Iiduka, Jun Suzuki, Tsutomu Nakamura, Norimasa Mimura, Yuichi Futaki
  • Publication number: 20140202879
    Abstract: The cathodic protection of a reinforced concrete structure utilizes sacrificial anodes such as aluminum or zinc as well as alloys thereof. Each anode is embedded or substantially covered in a material consisting of a hydrophilic non-cementious open-cell foam. An activating agent such as one or more lithium salts is contained within the cells of the foam to maintain the anodes in an electrochemically active state. The activating agent may be immobilized in the cells using an aqueous gel such as agar. One or more metallic conductors electrically connect the anodes to the metal reinforcing members.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 24, 2014
    Applicant: The Euclid Chemical Company
    Inventor: John E. Bennett
  • Patent number: 8721848
    Abstract: An anode sled for assembly is disclosed which is constructed using a bag or sack which can be filled on-site with ballast. The sled design includes at least one stanchion or post extending upward from the sack and supports an anode. The sled can be used for both sacrificial anode and impressed current applications.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: May 13, 2014
    Assignee: Marine Project Management, Inc.
    Inventor: Steven M. Simpson
  • Publication number: 20140124360
    Abstract: This invention resides in corrosion control of electrical cables associated with cathodic protection systems. In the preferred embodiment the cable is in the form of passive metals chosen for electrolysis-corrosion-resistance, including titanium, tantalum, niobium, zirconium, nickel, or alloys thereof. Small diameters may be used to make the cable flexible. The wires may be bare or enclosed insulator materials for easy handling. The invention which is applicable to the “impressed current” and “sacrificial anode” methods, is particularly advantageous in situations where the cable/structure is embedded deep in soil or concrete, and cannot be easily repaired or replaced if any damage occurs.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Inventor: Miki Funahashi
  • Publication number: 20140027270
    Abstract: The present invention develops dies, moulds, tools, workpieces and structures with active protection against corrosion (cathodic protection) in cooling circuits, often internal, independent of its complexity. Moreover, the protection can be renewed if considered appropriate. The protection is achieved through a thin coating layer which contains metallic elements more electronegative than the substrate to be protected and which is properly adhered to the mentioned substrate in order to ensure an efficient cathodic protection.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 30, 2014
    Applicant: ROVALMA, S.A.
    Inventor: Isaac Valls Anglés
  • Patent number: 8607878
    Abstract: Disclosed herein is a subsea well assembly; wherein in an example embodiment the subsea well assembly includes an umbilical attached to a power source. The power source can be on a platform. Also included is a connector for connecting the umbilical to a receptacle included with the subsea well assembly and a subsea control module delivering power and control signals to the subsea well assembly. An impressed current protection module is integrated in the subsea control module that receives power from the umbilical.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: December 17, 2013
    Assignee: Vetco Gray Inc.
    Inventor: Richard Knox
  • Publication number: 20130299360
    Abstract: Method and apparatus for reducing corrosion of a current bar in a corrosive environment. The non-reactive metal is fused around a reactive metal creating a shell and reducing the corrosion of the reactive metal.
    Type: Application
    Filed: January 14, 2013
    Publication date: November 14, 2013
    Inventor: Dennis Miller
  • Publication number: 20130284604
    Abstract: Apparatus and methods for electroplating metal onto substrates are disclosed. The electroplating apparatus comprise an electroplating cell and at least one oxidization device. The electroplating cell comprises a cathode chamber and an anode chamber separated by a porous barrier that allows metal cations to pass through but prevents organic particles from crossing. The oxidation device (ODD) is configured to oxidize cations of the metal to be electroplated onto the substrate, which cations are present in the anolyte during electroplating. In some embodiments, the ODD is implemented as a carbon anode that removes Cu(I) from the anolyte electrochemically. In other embodiments, the ODD is implemented as an oxygenation device (OGD) or an impressed current cathodic protection anode (ICCP anode), both of which increase oxygen concentration in anolyte solutions. Methods for efficient electroplating are also disclosed.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 31, 2013
    Inventors: Tighe A. Spurlin, Charles L. Merrill, Ludan Huang, Matthew Thorum, Lee Brogan, James E. Duncan, Frederick D. Wilmot, Marshall R. Stowell, Steven T. Mayer, Haiying Fu, David W. Porter, Shantinath Ghongadi, Jonathan D. Reid, Hyosang S. Lee, Mark J. Willey
  • Patent number: 8557089
    Abstract: An anode assembly for an impressed current cathodic protection system is disclosed. The anode assembly is arranged to protect a structure in a body of water. It includes an anode, an anode support and a base and is arranged to be electrically connected to the cathodic protection system. The base is a weighted member. The anode comprises a spherical hollow titanium body coated with a mixed metal oxide and filled with a non-conductive material. The anode support is an elongated titanium tube that projects upward from the base. The anode is welded on the top portion of the support to be disposed above the bed of the body of water. The anode assembly is connected to the cathodic protection system by an electrical connector mounted in a box.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: October 15, 2013
    Assignee: Matcor, Inc.
    Inventor: William R. Schutt
  • Publication number: 20130168261
    Abstract: It is described a metal anode for cathodic protection in form of mesh ribbon having meshes whose holes are of rhomboidal shape, characterised by having such holes of rhomboidal shape arranged with the major diagonal oriented along the direction of the ribbon length and by the fact that the side edges along the ribbon length are free from cutting protrusions. It is also described a method for obtaining such anode.
    Type: Application
    Filed: September 15, 2011
    Publication date: July 4, 2013
    Applicant: INDUSTRIE DE NORA S.P.A.
    Inventors: Corrado Mojana, Simone Tremolada
  • Publication number: 20130118897
    Abstract: An anode and backfill steel protector combination for inserting into at least one cavity which is mechanically formed in steel reinforced concrete. The anode and the backfill steel protector combination comprises an anode for insertion into the at least one cavity with the anode comprising a sacrificial metal element less noble than steel and a backfill which comprises a viscous and pliable ionically conductive material for insertion into the at least one cavity. The backfill is packaged within a cartridge and the cartridge is a cartridge for use with a cartridge which facilitates injecting the backfill from the cartridge into the at least cavity formed in the concrete. The backfill in a cartridge has a shelf life of at least 2 days.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 16, 2013
    Inventors: Gareth GLASS, Nigel DAVISON, Adrian ROBERTS
  • Publication number: 20130020191
    Abstract: An electric field modifier for boosting current output of a sacrificial anode for reinforced concrete to enhance its protective effect and direct the current output in a preferred direction to improve current distribution in galvanic protection of steel exposed to air. The combination comprises a sacrificial anode and an electric field modifier and an ionically conductive filler embedded in a cavity and the sacrificial anode is directly connected to the steel. The modifier comprises an element with an anode side supporting an oxidation reaction in electronic contact with a cathode side supporting a reduction reaction. The cathode of the modifier may form a cell with the sacrificial anode and is separated therefrom by the filler. The filler contains an electrolyte that connects the sacrificial anode to the cathode of the modifier. The reduction reaction on the cathode of the modifier may substantially comprise the reduction of oxygen from the air.
    Type: Application
    Filed: September 24, 2012
    Publication date: January 24, 2013
    Inventors: Gareth Kevin GLASS, Adrian Charles ROBERTS, Nigel DAVISON
  • Patent number: 8337679
    Abstract: The present invention relates to electrolytic cathode assemblies typically used in the refining or winning of metals and to methods of manufacturing and using same. The cathode assembly comprises an electrically conductive hanger bar and a deposition plate attached along an upper end to the hanger bar to define a joint. The cathode assembly further comprises a protective covering having lateral edges and surrounding the hanger bar and a portion of the upper end of the deposition plate so as to substantially enclose the joint and to leave end portions of the hanger bar exposed outside of the lateral edges of the protective covering. Each end of the protective covering includes a corrosion resistant material positioned to form a substantially continuous seal between the protective covering and the hanger bar, thereby to at least hinder fluid flow into the protective covering. Methods of manufacturing and using the electrolytic cathode assemblies are also described.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: December 25, 2012
    Assignee: EPCM Services Ltd.
    Inventors: Robert Stanley Jickling, Gordon Steven Iverson
  • Publication number: 20120305386
    Abstract: An anode assembly for an impressed current cathodic protection system is disclosed. The anode assembly is arranged to protect a structure in a body of water. It includes an anode, an anode support and a base and is arranged to be electrically connected to the cathodic protection system. The base is a weighted member. The anode comprises a spherical hollow titanium body coated with a mixed metal oxide and filled with a non-conductive material. The anode support is an elongated titanium tube that projects upward from the base. The anode is welded on the top portion of the support to be disposed above the bed of the body of water. The anode assembly is connected to the cathodic protection system by an electrical connector mounted in a box.
    Type: Application
    Filed: February 6, 2012
    Publication date: December 6, 2012
    Applicant: MATCOR, INC.
    Inventor: William R. Schutt
  • Patent number: 8298382
    Abstract: Apparatus for connection to a metallic structure, the apparatus comprises a transformer rectifier unit operable to output a DC current for cathodic protection of a metallic structure, and a modulator unit connected to receive a DC output from the transformer rectifier unit. The modulator unit is arranged for connection to a metallic structure, and is operable to produce a modulated current which is applied to such a metallic structure when the apparatus is in use, such that the metallic structure is detectable by a wireless locating device. The modulator unit is operable to be controlled remotely.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 30, 2012
    Assignee: Abriox Limited
    Inventors: Jason Hanlon, Thomas Josef McGee
  • Publication number: 20120261270
    Abstract: A method of protecting a metal section in concrete. The method comprises the steps of providing a sacrificial anode and embedding the sacrificial anode in a porous matrix in the cavity; providing a source of DC power with positive and negative connections and electrically connecting one of the connections of the source of DC power to the metal section to be protected; electrically connecting the a sacrificial anode in series with the other connection of the source of DC power and spacing the source of DC power from the cavity and the connections to the source of DC power which comprise at least one of wires and cables; and driving an anode current density from the sacrificial anode in excess of 500 mA/m2. An apparatus of protecting a metal section in concrete is also disclosed.
    Type: Application
    Filed: June 29, 2012
    Publication date: October 18, 2012
    Inventors: Gareth Kevin GLASS, Adrian Charles ROBERTS, Nigel DAVISON
  • Publication number: 20120205256
    Abstract: An apparatus and method for monitoring cathodic protection of a protected object that includes a probe with five segments in series. The cathodic protection is provided by a system with a power supply that impresses current onto the protected object. An anode is included with the system that is also connected to the power supply. The third and fifth segments are in electrical communication through a frangible connection; that over time galvanically corrodes to electrically isolate the third and fifth segments. The second segment, which is a permanent isolator, is set between the first and third segments. The third segment is selectively connected with the protected object. When the third segment is selectively disconnected from the protected object, measuring the potential difference between the third segment and the first segment yields a value for object polarization that is void of IR error.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventor: Darrell Raymond Catte
  • Publication number: 20120152733
    Abstract: Apparatus for connection to a metallic structure, the apparatus comprises a transformer rectifier unit operable to output a DC current for cathodic protection of a metallic structure, and a modulator unit connected to receive a DC output from the transformer rectifier unit. The modulator unit is arranged for connection to a metallic structure, and is operable to produce a modulated current which is applied to such a metallic structure when the apparatus is in use, such that the metallic structure is detectable by a wireless locating device. The modulator unit is operable to be controlled remotely.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 21, 2012
    Applicant: Abriox Limited
    Inventors: Jason Hanlon, Thomas Josef Mcgee
  • Publication number: 20120111736
    Abstract: A method and a steel reinforced concrete protector in an anode cavity which comprises a cored or drilled hole or a cut chase formed in concrete. The protector comprises a sacrificial anode assembly and a separate backfill. The sacrificial anode assembly comprises a sacrificial metal element less noble than steel and an activator to maintain an activity of the sacrificial metal element. The at least one spacer prevents the sacrificial metal element and the activator from contacting the anode cavity. The spacer and the sacrificial metal element have a coupling mechanism which facilitates connection of the sacrificial metal element to the spacer. The backfill is a pliable and viscous material which contains an electrolyte, and the backfill facilitates embedding the anode assembly in the anode cavity. A prepackaged sacrificial anode assembly and a method of increasing a shelf life of the sacrificial anode is also covered.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Applicant: E-CHEM TECHNOLOGIES LIMITED
    Inventors: Gareth Kevin GLASS, Nigel DAVISON, Adrian Charles ROBERTS
  • Patent number: 8163159
    Abstract: Techniques generally describe articles of enclosing manufacture and methods related to containers including a magnesium sacrificial anode for corrosion protection. Example articles of enclosing manufacture may include a liner or a rod that is configured as a sacrificial anode to protect a metallic side or end wall of the enclosing manufacture from corrosion. Other embodiments may be disclosed and claimed.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: April 24, 2012
    Assignee: Empire Technology Development LLC
    Inventor: Angele Sjong
  • Patent number: 8147658
    Abstract: In a structure for mounting a sacrificial electrode in a cooling water passageway provided in a cylinder block of a water-cooled engine for an outboard engine unit, the cooling water passageway is defined by a groove portion provided in the cylinder block and a lid member closing an opening of the groove portion, a gasket member is provided between the groove portion and the lid member, and a screw fixedly fastens the sacrificial electrode to a bottom wall of the cooling water passageway. The gasket member has an extension portion opposed to a surface of the head of the screw located remote from the bottom wall of the cooling water passageway.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 3, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akira Amano, Hiroshi Watanabe, Wataru Shimazaki
  • Publication number: 20120043223
    Abstract: For substantially eliminating scale buildup in a water processing facility, a water treatment method having the steps: accepting a scale formation standard value amount of scale formation that would occur in the facility from a cubic meter of water; measuring water from a water source for total hardness, alkali hardness, pH, and temperature; and therewith substantially removing a calculated scale removal target quantity from each cubic meter of the water source water just prior to entry of said water into the facility. Essentially, just prior to entry of each quantity of predetermined water into a water flow-through processing facility, removing more than about 0.1% of dissolved scale from the water quantity albeit less than 10% of dissolved scale from the water quantity.
    Type: Application
    Filed: August 18, 2010
    Publication date: February 23, 2012
    Inventor: David Sherzer
  • Patent number: 8118983
    Abstract: A corrosion inhibiting system is provided with the ability to allow both primary and secondary portions of the circuit to be used in the alternative without having the primary and secondary systems interfere with each other by operating at the same time. By incorporating a continuity controller, such as a switch or a diode to selectively disconnect the sacrificial anode from the circuit, the primary and secondary systems can both be provided on a marine vessel, but used independently from each other. In that way, the primary and secondary corrosion inhibiting systems are prevented from interfering with each other during normal operation.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 21, 2012
    Assignee: Brunswick Corporation
    Inventors: Kevin R. Anderson, Christopher J. Misorski, Gregory L. Fugar, Steven J. Gonring
  • Publication number: 20120031750
    Abstract: A Segmented Sacrificial Anode Assembly (SSAA) includes anode segments made from an anodic material containing an electrically conductive core with electrically conductive threaded female connectors at each end, Glass Reinforced Epoxy (GRE) isolators, and male threaded connectors. A number of the anode segments are connected by short male threaded connectors. A long male connector reaching through the isolator is used when connecting the SSAAs to a standing structure and an electrical cable is used to connect the SSAAs to a buried structure. An electrical lead is attached to a threaded post using pin brazing or Cadweld® and the threaded post is threaded into a recessed end threaded female connector of the SSAA. The recess is filled with two part epoxy. The anode segments may be selected from long, medium, and short anode segments to scale the SSAA for any given application.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 9, 2012
    Inventor: Omidreza Moghbeli
  • Publication number: 20120031751
    Abstract: A multi purpose segmented Titanium Mixed Metal Oxide coated impressed current cathodic protection anode assembly (Ti MMO anode assembly). The Ti MMO anode assembly includes combinations selected from four anode components and four connection components. The various components may be assembled for different applications in liquid or soil environments for the prevention or reduction of corrosion and loss of structural integrity. For example, the Ti MMO anode assembly may be applied to protect pipelines, buried structures, piers and internal surface protection of tanks and vessels in different arrangements such as deep wells, shallow ground beds, or distributed individual anodes.
    Type: Application
    Filed: July 27, 2011
    Publication date: February 9, 2012
    Inventor: Omidreza Moghbeli
  • Publication number: 20120018312
    Abstract: A semiconductor layer (12) is caused to receive electromagnetic waves (1) to emit electrons; the emitted electrons are collected and supplied to an object to be protected against corrosion; and the electrons (3) are returned from the object to be protected against corrosion (16), to which the electrons (2) are supplied, to the semiconductor layer (12) via an electrolytic layer (14), to thereby cause an electric current to flow to the object to be protected against corrosion (16) to make a potential of the object to be protected against corrosion (16) low. In a corrosion protection structure (10), an electron supplier (13) is electrically connected to a object to be protected against corrosion (16), to thereby provide corrosion protection, the electron supplier (13) being made of a semiconductor layer (12) formed on a supporting member (11) that is capable of transmitting electromagnetic waves and has electrical conductivity.
    Type: Application
    Filed: January 15, 2010
    Publication date: January 26, 2012
    Inventors: Shirou Yamamoto, Tetsushi Kimura, Hideo Kogure
  • Publication number: 20110303530
    Abstract: The installation and use of embedded sacrificial anodes to protect reinforced concrete may be improved. In one example a cavity [2] is formed in the concrete [3] and a puttylike backfill [4] is placed in the cavity and a compact discrete anode comprising a sacrificial metal element [1] is inserted into the backfill and a space is provided into which the backfill may move when subjected to a pressure arising from the formation of voluminous sacrificial meal corrosion products and a high current is passed from the anode to the steel in the concrete to arrest steel corrosion and activate the anode in the backfill. The space may be provided by venting the backfill to space outside the cavity through an opening [5] or by including a void space within the backfill [6] or a void space within the cavity [7].
    Type: Application
    Filed: August 19, 2011
    Publication date: December 15, 2011
    Inventors: Gareth GLASS, Nigel DAVISON, Adrian ROBERTS
  • Publication number: 20110299996
    Abstract: A gas turbine component and a method for producing an anti-erosion coating system are disclosed. The gas turbine component includes a basic material, on which an anti-erosion coating system is provided that is a multilayer system including at least one ductile metal layer and at least one hard, ceramics-containing layer for forming a partial anti-erosion system. At least one anti-corrosion layer that has a lower electrochemical potential than the basic material is provided between the partial anti-erosion system and the basic material, thus providing cathodic corrosion protection.
    Type: Application
    Filed: January 30, 2010
    Publication date: December 8, 2011
    Applicant: MTU Aero Engines GmbH
    Inventors: Thomas Uihlein, Wolfgang Eichmann, Falko Heutling
  • Publication number: 20110290664
    Abstract: A method and system for protecting underground gas carrier pipes housed within an outer casing pipe in which a gas carrier pipe section disposed within an outer casing pipe section and having opposed ends is electrically isolated from a remaining gas carrier pipe section proximate each of the ends. An annular space between the gas carrier pipe section and the outer casing pipe section is filled with an electrolyte. At least one anode electrode is inserted into the annular space distal from each of the gas carrier pipe section and the outer casing pipe section and connected with a positive voltage lead of a cathodic protection rectifier. A negative voltage lead of the cathodic protection rectifier is connected to the gas carrier pipe section.
    Type: Application
    Filed: June 1, 2010
    Publication date: December 1, 2011
    Applicant: GAS TECHNOLOGY INSTITUTE
    Inventor: Daniel Allen Ersoy
  • Publication number: 20110284368
    Abstract: According to various embodiments, a system includes a gasifier that includes a shell made of a first material exposed to a gasification region inside the gasifier and a patterned anode layer coupled to the shell inside the gasifier. The patterned anode layer is made of a second material, and the patterned anode layer is configured to protect the shell from corrosion by condensing hot gas in the gasification region.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Applicant: General Electric Company
    Inventors: George Albert Goller, Paul Stephen Dimascio, Rebecca Evelyn Hefner
  • Publication number: 20110284367
    Abstract: According to various embodiments, a system includes a turbine engine component that includes a first material having a surface exposed to a fluid flow path and a sacrificial anode layer disposed on the surface. The sacrificial anode layer includes a second material that is electrochemically more active than the first material and the second material is configured to preferentially corrode to protect the first material from corrosion.
    Type: Application
    Filed: May 21, 2010
    Publication date: November 24, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: George Albert Goller, Paul Stephen Dimascio, Rebecca Evelyn Hefner
  • Publication number: 20110259759
    Abstract: The present invention concerns a method and device for oxidative erosion or for decontamination of a metallic surface, comprising a step consisting of intermittently polarising the metallic surface to be eroded or decontaminated, placed in contact with a solution containing manganese VII, at a more anodic electric potential than the corrosion potential of said surface.
    Type: Application
    Filed: October 12, 2009
    Publication date: October 27, 2011
    Inventors: Jean-Michel Fulconis, Jacques Delagrange, Francis Dalard, Jean-Pierre Caire
  • Publication number: 20110240485
    Abstract: A sacrificial anode system and associated surface pipe system maintenance method designed to protect surface pipes and associated parts. According to a first aspect of the present invention, the sacrificial anode system is installable at an interface between a first pipe and a second pipe and comprises an insertion sleeve shaped to fit along an inner surface of the first pipe, a flange attached to the insertion sleeve and shaped to rest against an end surface of the first pipe, a sacrificial anode to be positioned within the first pipe, and a stem linking the sacrificial anode to the insertion sleeve. According to a second aspect of the present invention, a method for maintaining a surface pipe system is also provided.
    Type: Application
    Filed: February 10, 2011
    Publication date: October 6, 2011
    Inventor: Joseph PALMER