| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 204627000 | Barrier separator (e.g., electrodialyzer, etc.) | 48 |
| 20130068623 | TRANSLOCATION AND NUCLEOTIDE READING MECHANISMS FOR SEQUENCING NANODEVICES - By driving molecules electrophoretically through a nanopore, single molecule detection can be achieved. To enhance translocational control, functionalized and non-functionalized electrodes are strategically placed around or above a nanopore. Changes in transmission spectra and input voltage detected by electrodes allow accurate identification of single molecules as they pass through a nanopore. | 03-21-2013 |
| 20120228142 | FABRICATION AND USE OF SEMIPERMEABLE MEMBRANES AND GELS FOR THE CONTROL OF ELECTROLYSIS - Microfluidic devices having one or more membranes and methods of use for the microfluidic devices are disclosed. In one embodiment, a microfluidic device is disclosed that includes a body with first fluid passage and a membrane located between a first reservoir and the first fluid passage. A first electrode is in electrical communication with the first reservoir and a second electrode is in electrical communication with the first fluid passage. A potential applied across the first and second electrodes is capable of passing charged molecules through the membrane. | 09-13-2012 |
| 20090188802 | ION REMOVAL DEVICE AND METHOD FOR USING THE SAME - There are disclosed an especially inexpensive and compact ion removal device capable of removing ions of scales generated from for-treatment water, a surfactant and the like, and a method for using the device. In an ion removal device S of the present invention, at least a pair of electrodes (a first electrode | 07-30-2009 |
| 20120292190 | APPARATUS FOR FRAGMENTING NUCLEIC ACIDS - An apparatus for fragmenting nucleic acid. The apparatus includes a sample reservoir that comprises a fluid having nucleic acids. The apparatus can also include a shear wall that is positioned within the sample reservoir. The shear wall includes a porous core medium that has pores that are sized to permit nucleic acids to flow therethrough. The apparatus also includes first and second chambers that are separated by the shear wall. The first and second chambers are in fluid communication with each other through the porous core medium of the shear wall. Also, the apparatus may include first and second electrodes that are located within the first and second chambers, respectively. The first and second electrodes are configured to generate an electric field that induces a flow of the sample fluid. The nucleic acids move through the shear wall thereby fragmenting the nucleic acids. | 11-22-2012 |
| 20100147693 | DEVICE AND METHOD FOR MANUFACTURING A PARTICULATE FILTER WITH REGULARLY SPACED MICROPORES - Various embodiments disclose devices and methods for fabricating microporous particulate filters with regularly spaced pores wherein sheet membrane substrates are exposed to energetic particle radiation through a mask and the damaged regions removed in a suitable developer. The required depth of field is achieved by using energetic particles to minimize diffraction and an energetic particle source with suitably small diameter. | 06-17-2010 |
| 20100187115 | ELECTROOSMOTIC PUMP WITH IMPROVED GAS MANAGEMENT - An electroosmotic (EO) pump is provided that includes a housing having a pump cavity, a porous core medium and electrodes. The porous core medium is positioned within the pump cavity to form an exterior reservoir that extends at least partially about an exterior surface of the porous core medium. The porous core medium has an open inner chamber provided therein. The inner chamber represents an interior reservoir. The electrodes are positioned in the inner chamber and are positioned proximate the exterior surface. The electrodes induce flow of a fluid through the porous core medium between the interior and exterior reservoirs, wherein a gas is generated when the electrodes induce flow of the fluid. The housing has a fluid inlet to convey the fluid to one of the interior reservoir and the exterior reservoir. The housing has a fluid outlet to discharge the fluid from another of the interior reservoir and the exterior reservoir. The housing has a gas removal device to remove the gas from the pump cavity. | 07-29-2010 |
| 20100236933 | ELECTROOSMOTIC DEHYDRATOR - The present invention relates to an electroosmotic dehydrator, and more specifically to an electroosmotic dehydrator having a structure of improving durability and electrical conductivity of a drum that is a core part of the electroosmotic dehydrator, making it possbile to secure stable dehydrating work, extend use lifetime, and reduce power consumption. According to the present invention, An electroosmotic dehydrator comprising: a drum applied with + or −; a caterpillar or an electrode plate applied with + or − by being mounted to be spaced by a constant space portion from the drum; and a filter cloth belt wound for transfer and dehydration of sludge between the drum and the caterpillar or the electrode plate, characterized in that a copper plate is mounted to an outer side surface of the drum and a titanium plate is coated with a coating agent of platinum-based metal to an outer side surface of the copper plate. | 09-23-2010 |
| 20120193237 | DNA SEQUENCING USING MULTIPLE METAL LAYER STRUCTURE WITH DIFFERENT ORGANIC COATINGS FORMING DIFFERENT TRANSIENT BONDINGS TO DNA - A nanodevice includes a reservoir filled with conductive fluid and a membrane separating the reservoir. A nanopore is formed through the membrane having electrode layers separated by insulating layers. A certain electrode layer has a first type of organic coating and a pair of electrode layers has a second type. The first type of organic coating forms a motion control transient bond to a molecule in the nanopore for motion control, and the second type forms first and second transient bonds to different bonding sites of a base of the molecule. When a voltage is applied to the pair of electrode layers a tunneling current is generated by the base in the nanopore, and the tunneling current travels via the first and second transient bonds formed to be measured as a current signature for distinguishing the base. The motion control transient bond is stronger than first and second transient bonds. | 08-02-2012 |
| 20110089038 | FILTER ELEMENT WITH PARTICLE-TRAPPING CREVICE - A filter element includes a flow-through element and a floor element that abut one another to form a crevice along a crevice length between the flow-through element and the floor element. The crevice traps a portion of particles that become dislodged from the flow-through element. | 04-21-2011 |
| 20120006685 | Process for Preparing Composite Membranes - A continuous process for preparing a composite membrane comprising the steps of: (i) providing a laminate structure comprising a barrier layer and a porous sheet; (ii) applying a curable composition to the porous sheet; (iii) curing the composition to form the composite membrane comprising the sheet and the cured composition; and (iv) optionally separating the composite membrane from the barrier layer. The composite membranes are particularly useful for producing electricity by reverse electrodialysis. | 01-12-2012 |
| 20120298512 | SMALL VOLUME LIQUID MANIPULATION, METHOD, APPARATUS AND PROCESS - An apparatus, a method and a process to achieve manipulation of particles and/or solutions through the use of electrokinetic properties are disclosed. The manipulation is performed using a disposable device positioned on top of a stage for purposes of powering the electrodes. The fluidic solution is brought into contact with the active part of the device and then manipulated. | 11-29-2012 |
| 204628000 | With control means responsive to sensed condition | 4 |
| 20100025249 | Systems and Methods for Controlling the Position of a Charged Polymer Inside a Nanopore - Techniques for controlling the position of a charged polymer inside a nanopore are provided. For example, one technique includes using electrostatic control to position a linear charged polymer inside a nanopore, and creating an electrostatic potential well inside the nanopore, wherein the electrostatic potential well controls a position of the linear charged polymer inside the nanopore. | 02-04-2010 |
| 20100155248 | Water Purification System And Method, And Module For The System - The invention relates to a method and a system for purifying water whereby:
| 06-24-2010 |
| 20100258442 | ELECTRONIC OSMOTIC DEHYDRATOR OF ELECTROPHORESIS STYLE WITH A PHASE CONTROL USING THREE-PHASE CURRENT - The present invention relates to An electronic osmotic dehydrator of electrophoresis style with a phase control using three-phase current, and more specifically, to An electronic osmotic dehydrator of electrophoresis style with a phase control using three-phase current, which can minimize an unnecessary loss of power consumed in the rotating drum itself by emboding the applying structure of the DC power supplied to the dehydrating domain of the electro-osmotic dehydrator so that a strength of the electric field generated between the rotating drum and the caterpillar may be variably controlled depending upon a sludge volume, and improving a structure of the rotating drum to which the DC power is applied, when forming an electronic osmotic dehydrator comprising a rotating drum in the cylindrical form, a caterpillar running on an endless track at a certain space from the rotating drum and two filter cloth belts for transferring and dehydrating the sludge as wound between the drum and the caterpillar, which is a continued invention of ‘an electro-osmotic dehydrator (K.R. Patent Application No. 10-2004-007759)’, ‘an electro-dehydrator of a phase control type (K.R. Patent Application No. 10-2005-009928)’, and ‘an electro-osmotic dehydrator (K.R. Patent Application No. 10-2007-046494)’ which were already filed by the applicant of the present invention. | 10-14-2010 |
| 20120145550 | APPARATUS FOR REMOVING IONS IN COOLING WATER FOR FUEL CELL VEHICLE - Disclosed is an apparatus for efficiently removing ions contained cooling water used in cooling a fuel cell stack. More specifically, the present invention removes ions by trapping ions contained in cooling water using a permeable membranes capable of making ions selectively pass therethrough and electrodes which are configured to attract ions. The present invention can reduce electric power consumption in pump and can modify the overall performance of the system to cope with various environmental conditions. | 06-14-2012 |
| 204629000 | With moving or movable electrode | 1 |
| 20130015070 | DRUM-TYPE ELECTRO-OSMOSIS DEHYDRATOR CAPABLE OF REDUCING ELECTRICITY CONSUMPTION BY DECREASING GAP BETWEEN POSITIVE AND NEGATIVE ELECTRODESAANM Lee; Sang JoonAACI BusanAACO KRAAGP Lee; Sang Joon Busan KR - Provided is an electro-osmosis dehydrator, which includes a sludge supplying part disposed in a central upper portion thereof, and including a rotating part and two rollers disposed under the rotating part, a drum disposed under the sludge supplying part to receive sludge, and having a cylindrical shape rotating about an axis thereof, wherein an inner circumference of the drum is charged negatively or positively by direct current power, a caterpillar part spaced a certain distance from the drum, and moving along an endless track, wherein the caterpillar part includes a power applying part charged with polarity opposite to that of the drum by direct current power, a filtering fabric disposed under the power applying part, a caterpillar disposed under the filtering fabric, and including a plurality of holes, a vinyl part disposed between the filtering fabric and the caterpillar to prevent the sludge from passing through the caterpillar, and a chain disposed under the caterpillar, and a plurality of idle sprocket parts disposed on the inside of the caterpillar part, and engaging with the chain to drive the caterpillar part. A filtering fabric is removed from the space between positive and negative electrodes so as to decrease the gap therebetween, thereby reducing electricity consumption. | 01-17-2013 |
| 204630000 | Ion selective | 32 |
| 20120199486 | Ion-Selective Capacitive Deionization Composite Electrode, and Method for Manufacturing a Module - Provided are a CDI electrode and a method for manufacturing a module using the same. A composite electrode manufactured by the manufacturing method of the present invention can manufacture a CDI electrode capable of increasing adsorption efficiency and rate of ions and selectively adsorbing cation and anion, thereby simply and inexpensively manufacturing the CDI electrode module without using a cation-exchange membrane and an anion-exchange membrane. | 08-09-2012 |
| 20090308752 | Electrochemical Pump - The invention provides electrochemically-based methods and devices for producing fluid flow and/or changes in fluid pressure. In the methods and devices of the invention, current passes through a divided electrochemical cell. Adjacent compartments of the cell are divided by an ionically conducting separator. Each compartment includes an electrode and an electrolyte solution or ionic liquid. The electrolyte solution(s) or ionic liquid(s) and the ionically conducting separator are selected to obtain the desired relationship between the current through the cell and the fluid flowrate and/or change in fluid pressure. | 12-17-2009 |
| 20080245668 | Parking a Sample Stream and Suppressing the Sample - Pretreatment method and apparatus to remove matrix ions from a liquid sample, prior to separation of the sample analytes (e.g. by chromatography), by flowing the liquid sample into a sample compartment and stopping the flow. The sample compartment has a wall comprising an ion exchange membrane having exchangeable ions of the same charge as the matrix ions to be removed. A regenerant liquid stream flows through a regenerant flow compartment on the other side of the membrane from said parked liquid sample. Matrix ions in the parked liquid sample are transported across the membrane into the regenerant flow compartment. Suppression may be performed electrolytically and/or chemically. A concentrator column may also be used. | 10-09-2008 |
| 20120118742 | Techniques for Promoting Current Efficiency in Electrochemical Separation Systems and Methods - An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system. | 05-17-2012 |
| 20120118741 | Integrated Electronic Device and Methods of Making the Same - An integrated electronic device, and its method of manufacture, are provided. The integrated electronic device can include Iontophoresis electrodes that are electrically coupled to a thin printed flexible electrochemical cell. In one example, the Iontophoresis electrodes and the electrochemical battery are provided on a single substrate. In one example method of manufacture, the entire cell can be made on a printing press to integrate the battery directly with the electronic assembly of the Iontophoresis electrodes. | 05-17-2012 |
| 20130008795 | ELECTROPHORESIS APPARATUS - An electrophoresis apparatus for measuring, characterizing and/or altering a composition of a sample. The apparatus comprises an anode compartment having an anode and a cathode compartment having a cathode. The anode and cathode are spaced at a distance from one another to define an electric field having a direction along longitudinal axis, and between the anode and cathode compartments can be at least one separation compartment. Each compartment includes means for adding or removing a solution, a first dimension orthogonal to the direction of the electric field, a second dimension orthogonal to the electric field and the first dimension, and a third dimension parallel to the electric field and orthogonal to the first and second dimensions. A ratio of the first and second dimensions define an aspect ratio, at least one aspect ratio being less than one. An ion-permeable barrier is positioned between each compartment to prevent convective mixing therebetween. | 01-10-2013 |
| 20090152117 | Electrodialysis apparatus, waste water treatment method and fluorine treatment system - An electrodialysis apparatus includes an anode chamber ( | 06-18-2009 |
| 204631000 | With bipolar membrane | 4 |
| 20100096269 | ELECTRODEIONIZATION APPARATUS - An electrodeionization apparatus has a cathode and an anode, and has alternately formed therebetween concentrating chambers and desalination chambers by alternately arranging a plurality of anion exchange membranes and cation exchange membranes, each of the concentrating chambers being provided with a bipolar membrane to partition the interior of the concentrating chamber into a cathode side and an anode side, and each of the desalination chambers being divided into at least two layers including a first layer and a second layer, from an upstream side in a direction of flow of water to be treated, and being filled with an ion exchanger comprising an anion exchanger and a cation exchanger. The ion exchanger filling the first layer contains no less than 50 vol % of the cation exchanger, while the ion exchanger filling the second layer contains over 50 vol % to 80 vol % of the anion exchanger. As a result, the electrodeionization apparatus can be stably operated for a prolonged period of time while preventing formation of scale in the concentrating chambers and desalination chambers. | 04-22-2010 |
| 20110042218 | CARTRIDGE HAVING TEXTURED MEMBRANE - A cartridge for an ion exchanging electrochemical cell, the cartridge comprising at least one spiral wound, textured, bipolar ion exchange membrane having (i) an anion exchange layer abutting a cation exchange layer with continuous contact between the anion exchange layer and the cation exchange layer; and (ii) an exposed textured surface having a pattern of texture features. A method of manufacturing a cartridge for an ion exchange electrochemical cell comprises winding the textured, bipolar ion exchange membrane into a spiral wound membrane. | 02-24-2011 |
| 20120152747 | HIGH-PRESSURE ELECTRODIALYSIS DEVICE - An apparatus for performing electrodialysis at pressures greater than or equal to the ambient pressure is described. The apparatus includes an electrodialysis membrane stack and housing. The electrodialysis membrane stack includes at least one electrodialysis cell. The electrodialysis apparatus includes electrodes that apply voltage across the electrodialysis stack. The housing pressurizes the electrodialysis stack at a stack pressure. The housing includes a cell chamber that receives the electrodialysis stack, the cell chamber including at least one pressurization port communicating with the cell chamber such that a portion of electrode solution is transmittable into a region of the cell chamber outside the electrodialysis stack. A system for performing electrodialysis at pressures greater than ambient pressure includes at least two solution loops, an electrode solution loop, and an electrodialysis apparatus operatively connected to the solution and electrode solution loops that performs electrodialysis at a stack pressure that is greater than ambient pressure. | 06-21-2012 |
| 20130015071 | MODIFIED SULFONATED BLOCK COPOLYMERS AND THE PREPARATION THEREOFAANM Willis; Carl L.AACI HoustonAAST TXAACO USAAGP Willis; Carl L. Houston TX US - Described herein are modified sulfonated block copolymers which comprise at least two polymer end blocks A and at least one polymer interior block B, wherein each A block contains essentially no sulfonic acid or sulfonate functional groups and each B block comprises sulfonation susceptible monomer units and, based on the number of the sulfonation susceptible monomer units, from about 10 to about 100 mol % of a functional group of formula (I) | 01-17-2013 |
| 204632000 | And ion exchange material (e.g., suspended ion exchange resin particles, etc.) | 12 |
| 20130068624 | ELECTRODEIONIZATION APPARATUS FOR PRODUCING DEIONIZED WATER - An electrodeionization apparatus for producing deionized water comprises a deionization treatment unit including deionization chamber D and a pair of concentration chambers C | 03-21-2013 |
| 20110005934 | Arrangement of ion exchange material within an electrodeionization apparatus - an electrodeionization apparatus is provided comprising an ion-concentrating compartment partially bounded by an anion permeable membrane and also partially bounded by a cation permeable membrane, and a first ion exchange material domain disposed within the ion-concentrating compartment, wherein the first ion exchange material domain is contiguous with at least a portion of an ion-concentrating compartment side surface of one of the anion permeable membrane and the cation permeable membrane, and is spaced apart from the other one of the one of the anion permeable membrane and the cation permeable membrane. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is an anion permeable membrane, the first ion exchange material domain is an anion exchange material predominant domain. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is a cation permeable membrane, the first ion exchange material domain is a cation exchange material predominant domain. | 01-13-2011 |
| 20100108521 | METHODS AND APPARATUS FOR ELECTRODEIONIZATION - The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to minimize the fouling of the electrode chambers and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatuses. | 05-06-2010 |
| 20090283409 | Under-sink Apparatus for Target Pharmaceutical Compound Treatment - A target compound treatment apparatus of a size capable of being mounted under a sink, the apparatus comprising a destruction zone in which an aqueous solution containing at least one target compound is exposed to a destruction agent adapted to convert the target compound into destruction byproduct; a filtration zone in which a filtration agent removes the destruction byproduct from the solution; and a flow inducer/pump adapted to cause the aqueous solution to flow through the apparatus. The destruction agent may comprise an acid, a base, an oxidizing agent, or a reducing agent. The destruction agent may be available on a surface of a solid substrate disposed within the destruction zone, or it may be available in a gaseous or liquid reagent that is admixed with the aqueous solution. The filtration agent may be comprised of an adsorption media such as activated carbon and/or other filtration means for removing destruction byproduct. The pump may be manually activated, or it may be activated by a sensor that detects a solution entering the apparatus. | 11-19-2009 |
| 20100126867 | METHOD AND APPARATUS FOR ELECTRODEIONIZATION LAYERED CHAMBERS - The present invention relates generally to the deionization of liquids through the use of electrodeionization methods and apparatuses. The apparatuses may be configured to minimize the fouling of the electrode chambers and to provide continuous regeneration of the ion exchange materials. The apparatuses may be configured according to the desired levels of deionization for anions, cations, or both. Finally, methods are presented for various uses of the apparatuses. | 05-27-2010 |
| 20100140095 | ON-DEMAND INTERMITTENT HIGH PURITY WATER PRODUCTION SYSTEM - An on-demand system for intermittent high purity water production which by locating a storage tank for pre-polished water just prior to a final high purity polishing device reduces the potential for stagnant water in the system to reduce or degrade product high purity water quality and reduces the actual degradation of high purity water quality. Pre-polished water is preferably produced by reverse osmosis. Final polished water is produced by continuous electrodeionization. | 06-10-2010 |
| 20120267248 | METHOD FOR PRODUCING A SULFONATED BLOCK COPOLYMER COMPOSITION - Sulfonated block copolymer composition formed by dissolving in an aprotic polar solvent at least one sulfonated block copolymer having at least one end block A and at least one interior block B wherein each A block contains essentially no sulfonic acid or sulfonate ester functional groups and each B block is a polymer block containing from about 10 to about 100 mol % sulfonic acid or sulfonate ester functional groups based on the number of sulfonation susceptible monomer units of the B block. | 10-25-2012 |
| 20110000792 | Arrangement of ion exchange material within an electrodeionization apparatus - An electrodeionization apparatus is provided comprising an ion-concentrating compartment partially bounded by an anion permeable membrane and also partially bounded by a cation permeable membrane, and a first ion exchange material domain disposed within the ion-concentrating compartment, wherein the first ion exchange material domain is contiguous with at least a portion of an ion-concentrating compartment side surface of one of the anion permeable membrane and the cation permeable membrane, and is spaced apart from the other one of the one of the anion permeable membrane and the cation permeable membrane. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is an anion permeable membrane, the first ion exchange material domain is an anion exchange material predominant domain. In the case where the one of the anion permeable membrane and the cation permeable membrane, having the at least a portion of an ion-concentrating compartment side surface with which the first ion exchange material domain is contiguous, is a cation permeable membrane, the first ion exchange material domain is a cation exchange material predominant domain. | 01-06-2011 |
| 20110303544 | APPARATUS FOR FLUID PURIFICATION AND METHODS OF MANUFACTURE AND USE THEREOF - The present invention generally relates to devices able to purify fluids electrically that are contained within pressure vessels, as well as to methods of manufacture and use thereof. Liquids or other fluids to be purified enter the purification device and, under the influence of an electric field, are treated to produce an ion-depleted liquid. Species from the entering liquids are collected to produce an ion-concentrated liquid. Increasing the exterior pressure on the device may reduce the pressure difference between the interior of the device and the exterior, which may reduce manufacturing costs or simplify construction. | 12-15-2011 |
| 20100326833 | APPARATUS AND SYSTEM FOR DEIONIZATION - There is provided herein a membrane package comprising a plurality of membranes, wherein said membrane package is adapted to facilitate a feed stream flow having a process stream flow wherein said hydrodynamic resistance of said feed stream flow is substantially the same as said hydrodynamic resistance of said process stream flow. | 12-30-2010 |
| 20110005933 | METHOD FOR OPERATING ELECTRODEIONIZATION DEIONIZED WATER PRODUCING APPARATUS, ELECTRODEIONIZATION DEIONIZED WATER PRODUCING SYSTEM, AND ELECTRODEIONIZATION DEIONIZED WATER PRODUCING APPARATUS - An electrodeionization deionized water producing apparatus includes, between an anode chamber having an anode and a cathode chamber having a cathode, a desalination chamber in which a side near the anode is demarcated by an anion exchange membrane and a side near the cathode is demarcated by a cation exchange membrane, and a concentrating chamber in which a side near the anode is demarcated by a cation exchange membrane and a side near the cathode is demarcated by an anion exchange membrane, and the anode side of the anion exchange membrane is filled with an anion exchanger. In the electrodeionization deionized water producing apparatus, water containing free carbon dioxide is supplied to the concentrating chamber and formation of scales in the concentrating chamber during a continuous operation of a long period is inhibited. | 01-13-2011 |
| 20120168313 | ELECTRODEIONIZATION DEVICE AND METHOD WITH IMPROVED SCALING RESISTANCE - An electrodeionization apparatus includes an anode compartment provided with an anode and a cathode compartment spaced from the anode compartment and provided with a cathode, wherein the anode and cathode are configured for coupling to a DC power source to effect an electric potential difference between the anode and the cathode and thereby influence transport of ionic material in liquid media and ion exchange media by the influence of the electric potential difference. The electrodeionization apparatus also includes a feed inlet receiving a feed solution, a product water outlet and a plurality of anion exchange membranes and a plurality of cation exchange membranes alternately arranged between the anode compartment and the cathode compartment. The electrodeionization apparatus also includes a plurality of spacers, wherein the spacers and the anion and cation exchange membranes are arranged to form a first diluting compartment receiving feed solution from the feed inlet, a second diluting compartment in series with the first diluting compartment and delivering product water to the product water outlet, a first concentrating compartment and a second concentrating compartment. The first and second diluting compartments are bounded by an anion exchange membrane on the side closest to the anode and by a cation exchange membrane on the side closest to the cathode. The first and second concentrating compartments are bounded by a cation exchange membrane on the side closest to the anode and by an anion exchange membrane on the side closest to the cathode. | 07-05-2012 |
| 204633000 | Both anion and cation selective membranes | 6 |
| 20100078327 | Deionization apparatus, electrode module for the same and method for manufacturing the same - In the deionization apparatus, among a pair of electrode modules to which a power is applied, only one electrode module includes an electrode capable of adsorbing ions to impart an ion-adsorption capability thereto and the other electrode module includes an electrode having no ion-adsorption capability not to impart an ion-adsorption capability thereto, to remove only one of cations and anions, in order to improve production efficiency and reduce manufacturing costs. | 04-01-2010 |
| 20120031763 | ELECTRODIALYZER - An object of this invention is to provide an electrodialyzer which is effective in saving electric power. According to this invention, there is provided an electrodialyzer which electrically dialyzes water to be processed while a voltage causing substantially no current to flow is applied between an anode and a cathode. | 02-09-2012 |
| 204634000 | Alternating anion and cation selective membranes | 4 |
| 20110068008 | Method, Apparatus And Plant For Desalinating Saltwater Using Concentration Difference Energy - A method and apparatus for desalinating saltwater using concentration difference energy is disclosed. In order to desalinate saltwater that is contained within a product chamber, a drive cell is used to generate a drive voltage. The product chamber has a desalination voltage such that when a sufficient voltage is applied to the product chamber, anions and cations migrate out of the product chamber, thereby desalinating the water. The sufficient voltage, which includes the drive voltage and which is equal to or greater than the desalination voltage, is applied to the product chamber, consequently effecting desalination. Beneficially, concentration difference energy can be generated using a concentrated solution, which can be generated using, for example, solar energy. | 03-24-2011 |
| 20120118743 | ELECTRICAL PURIFICATION APPARATUS - An electrical purification apparatus and methods of making same are disclosed. The electrical purification apparatus may provide for increases in operation efficiencies, for example, with respect to current efficiencies and membrane utilization. | 05-17-2012 |
| 20120118744 | ELECTROCHEMICAL SEPARATION MODULES - An electrochemical separation system may be modular and may include at least a first modular unit and a second modular unit. Each modular unit may include a cell stack and a frame. The frame may include a manifold system. A flow distribution system in the frame may enhance current efficiency. Spacers positioned between modular units may also enhance current efficiency of the system. | 05-17-2012 |
| 204636000 | With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.) | 1 |
| 20110042219 | NON-FARADAY BASED SYSTEMS, DEVICES AND METHODS FOR REMOVING IONIC SPECIES FROM LIQUID - A non-Faraday ionic species removal process and system is described. The system includes a power supply, a pump for transporting a liquid through the system, and a plurality of porous electrodes. The electrodes , each include an electrically conductive porous portion. The electrodes may also include a substrate contiguous with the porous portion. The porous electrode can be utilized in electrodialysis and electrodialysis reversal systems. A method for forming a porous electrode is described. | 02-24-2011 |
| 204638000 | With foraminous or perforated membrane support or spacer (e.g., screen, perforated plate, fabric, etc.) | 3 |
| 20100089756 | METHOD AND APPARATUS FOR DESALINATION - A method and apparatus for purifying water are provided. A feed water such as seawater can be fed to a filter such as a microporous or nanofiltration membrane to produce a permeate that can, in turn, be fed to an electrodeionization system to produce fresh water. | 04-15-2010 |
| 20090032402 | ELECTROPHORESIS DEVICE COMPRISING HOLE-CONTAINING STRUCTURE AND METHOD FOR FABRICATING THE SAME - Disclosed herein are an electrophoresis device comprising a hole-containing structure and a method for fabricating the same. By which electrophoretic particles are embedded into holes, the optical properties of the device can be controlled. The electrophoresis device includes a structure having inherent optical properties, thus realizing improvement in reliability and display quality. Since the electrophoresis device uses a gas or vacuum as a medium of the electrophoretic particles, it can be driven with a high speed. | 02-05-2009 |
| 20110162967 | ION EXCHANGE ELEMENT, SPACER COMPONENT, AND DEVICES MADE THEREFROM - A linear exchange element with functionalized polymer on a core of rope, twine or yarn has well defined physical structure and may function as a spacer or be formed into free-standing exchange elements. A screen is fabricated from such strands or strips, with a pattern of mixed, sequential or other exchange types for enhanced operation in a capture device or in an electrodialysis device. Strands possess tensile strength, enabling deionization devices of new architecture, such as fiber-wound cartridges and other packing arrangements. Bodies made of the strands may operate as walls to perform the function of an exchange membrane or bed, or may operate as spacers positioned between membranes to enhance ion capture and transport, and their properties simplify handling and regeneration. Electroseparation devices advantageously employ the open spacers to better treat food, fermentation product or other streams where high conductivity, suspended solids and fouling would otherwise present problems. “Woven” mats may be arranged so that strands of one type in a first layer possess at least some points of contact with strands of opposite type in an adjacent layer, and different strand diameter and mesh pitch or dimension may be employed for treating fluids of different viscosity or concentration to optimize treatment throughput and removal rate, or to minimize fouling or flow obstruction and otherwise extend the range of treatment parameters. | 07-07-2011 |
