Oxygen Produced Patents (Class 205/633)
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Patent number: 7914479Abstract: The present invention is directed to a photolytic artificial lung. The photolytic artificial lung converts water to oxygen for blood absorption, regulates pH, the removes carbon dioxide, and co-produces electrical power is disclosed. The photolytic artificial lung includes a photolytic cell where all of the chemical reactions occur. The photolytic cell disclosed herein can also be used to direct chemical reactions in organs other than the lung. Also disclosed herein is a gas sorption device for removing carbon dioxide from the system by chemical sorption.Type: GrantFiled: September 13, 2004Date of Patent: March 29, 2011Assignees: Battelle Memorial Institute, Pharos, LLCInventors: Bruce F. Monzyk, Kurt Dasse
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Publication number: 20110048962Abstract: Compositions, electrodes, systems, and/or methods for water electrolysis and other electrochemical techniques are provided. In some cases, the compositions, electrodes, systems, and/or methods are for electrolysis which can be used for energy storage, particularly in the area of energy conversion, and/or production of oxygen, hydrogen, and/or oxygen and/or hydrogen containing species. In some embodiments, the water for electrolysis comprises at least one impurity and/or at least one additive which has little or no substantially affect on the performance of the electrode.Type: ApplicationFiled: August 27, 2010Publication date: March 3, 2011Applicant: Sun Catalytix CorporationInventors: Steven Y. Reece, Arthur J. Esswein, Kimberly Sung, Zachary I. Green, Daniel G. Nocera
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Publication number: 20110042227Abstract: The present invention provides ruthenium or osmium complexes and their uses as a catalyst for catalytic water oxidation. Another aspect of the invention provides an electrode and photo-electrochemical cells for electrolysis of water molecules.Type: ApplicationFiled: August 24, 2010Publication date: February 24, 2011Inventors: Javier Jesus Concepcion Corbea, Zuofeng Chen, Jonah Wesley Jurss, Joseph L. Templeton, Paul Hoertz, Thomas J. Meyer
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Publication number: 20110031131Abstract: Methods systems and devices for impeding an anode from being corroded or dissolved are provided. In one example, an electrolysis system includes an anode, the anode disposed on a support including a housing, the housing having an inverted cup on an end, the anode on an interior wall of the inverted cup such that electrical contact with an electrolysis solution is made along a concave portion of the inverted cup. Such an example may further include a cathode, the cathode disposed within a collection pipe such that gas produced at the cathode is retained within a channel of the collection pipe.Type: ApplicationFiled: August 4, 2010Publication date: February 10, 2011Inventor: Michael Anderson
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Publication number: 20100147699Abstract: A device for the concurrent oxygen generation and control of carbon dioxide for life support system involves two stages, where a first stage removes CO2 from an exhalent side of a ventilation loop and a second stage employs Ceramic Oxygen Generators (COGs) to convert CO2 into carbon and O2. The first stage includes a plurality of chambers and means to switch the ventilation loop through at least one of the chambers, where CO2 removal is carried out before discharge of the CO2 depleted gas to an inhalant side of the ventilation loop, and to exclude the ventilation loop from the remaining chambers of the first stage, where these chambers are placed in communication with the second stage. The second stage has two portions separated by the COGs such that CO2 and the formed carbon remain on an intake portion from the O2 rich atmosphere on the exhaust side, which is plumbed via a metering valve to introduce the O2 rich atmosphere to the inhalant side of the ventilation loop.Type: ApplicationFiled: April 30, 2008Publication date: June 17, 2010Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Eric D. Wachsman, Keith L. Duncan, Helena Hagelin-Weaver
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Publication number: 20100133111Abstract: Catalytic materials, photoanodes, and systems for electrolysis and/or formation of water are provided which can be used for energy storage, particularly in the area of solar energy conversion, and/or production of oxygen and/or hydrogen. Compositions and methods for forming photoanodes and other devices are also provided.Type: ApplicationFiled: October 8, 2009Publication date: June 3, 2010Applicants: Massachusetts Institute of Technology, Sun Catalytix CorporationInventors: Daniel G. Nocera, Matthew W. Kanan, Yogesh Surendranath, Steven Y. Reece, Arthur J. Esswein
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Publication number: 20090283420Abstract: A Hydrogen fuel producing electrolytic device incorporating an electrode assembly producing Hydrogen and Oxygen gases without the aid of chemical electrolytes. The device will supply any combustion based devices using fossil, synthetic, or organic fueled engines. The present invention is used to augment or support any combustion process thereby increasing fuel efficiency or lowering adverse greenhouse gas emissions. An embodiment of the present invention causes self induced, pumping removing the produced H2 and O2 gases efficiently at a rapid rate from the cathode and anode electrode surfaces. Non rigid mountings of individual tubular anodes and or cathodes one within the other allowed for effect in the form of micro oscillations through electro attractive forces of the anodes and cathodes in a non uniform electrolytic fluid.Type: ApplicationFiled: May 15, 2008Publication date: November 19, 2009Inventors: Mathew A. Schadeck, David G. Jewell
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Publication number: 20090211919Abstract: An electrolytic water treatment system improving upon the electrode life of electrolytic oxygen generators by reducing mineral precipitation and fouling that typically occurs in water treatment systems. The electrolytic water treatment system can include a softened water bypass stream into which a flow-through electrolytic element can be positioned. By eliminating exposure of the electrolytic element to hard water, scale formation on electrodes can be significantly reduced such that polarity reversal cycles of the electrolytic element decrease in frequency.Type: ApplicationFiled: February 2, 2009Publication date: August 27, 2009Inventors: Rudolph R. Hegel, Karl J. Fritze
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Publication number: 20090145771Abstract: Devices, systems and methods for improved electrical appliances which allow for efficient and safe production of hydrogen and oxygen gas for a flame are disclosed. An appliance for providing gas for combustion may comprise a water inlet, a power source, and an electrolyzer with at least one electrolysis transistor generating hydrogen and oxygen. The appliance may also comprise a gas handling unit for collecting the output of the electrolyzer and transporting it to a burner, and an output interface.Type: ApplicationFiled: August 28, 2008Publication date: June 11, 2009Inventors: Umesh Mishra, Rakesh Lal, Lee McCarthy, Primit Parikh
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Patent number: 7510640Abstract: A method for configuring a solar hydrogen generation system and the system optimization are disclosed. The system utilizes photovoltaic modules and an electrolyte solution to efficiently split water into hydrogen and oxygen. The efficiency of solar powered electrolysis of water is optimized by matching the most efficient voltage generated by photovoltaic cells to the most efficient input voltage required by the electrolysis cell(s). Optimizing PV-electrolysis systems makes solar powered hydrogen generation cheaper and more practical for use as an environmentally clean alternative fuel.Type: GrantFiled: February 2, 2005Date of Patent: March 31, 2009Assignee: General Motors CorporationInventors: Thomas L Gibson, Nelson A Kelly
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Publication number: 20090026087Abstract: A water electrolysis unit disposed between the outlet of the air filter of a conventional internal combustion engine and the intake manifold of the internal combustion engine. The electrolysis unit comprises an outer housing and an inner container which is disposed entirely within the outer housing. Between the outer housing and the inner container is a space for the collection of gases. The upper portion of the inner container is provided with a series of alternating peaks and valleys. At the tops of the peaks are louvered openings which permit the gases formed in the electrolysis to enter the space between the inner container and the outer housing. At the bottom of each valley of the inner container are a plurality of electrically conductive sleeves. The bottom of the inner container is provided with a series of troughs which are disposed beneath the valleys and in which the lower ends of the conductive sleeves are received.Type: ApplicationFiled: July 26, 2007Publication date: January 29, 2009Inventor: James T. Sego
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Patent number: 7459071Abstract: A hydrogen-oxygen gas generator comprising an electrolytic cell, an electrode group formed from an anode and a cathode mutually installed in that electrolytic cell, a power supply for applying a voltage across the anode and cathode, a gas trapping means for collecting the hydrogen-oxygen gas generated by electrolyzing the electrolyte fluid and a vibration-stirring means. The gas trapping means is comprised of a lid member installed on the electrolytic cell, a hydrogen-gas extraction tube connecting to the hydrogen-oxygen gas extraction outlet of that lid member. A vibration-stirring means for stirring and agitating the electrolytic fluid is supported by support tables. The distance between the adjacent positive electrode and negative electrode within the electrode group is set within a range of 1 to 20 millimeters.Type: GrantFiled: May 2, 2002Date of Patent: December 2, 2008Assignee: Japan Techno Co., Ltd.Inventor: Ryushin Omasa
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Patent number: 7402283Abstract: An acid or base is generated in an aqueous solution by the steps of: (a) providing a source of first ions adjacent an aqueous liquid in a first acid or base generation zone, separated by a first barrier (e.g., anion exchange membrane) substantially preventing liquid flow and transporting ions only of the same charge as said first ions, (b) providing a source of second ions of opposite charge adjacent an aqueous liquid in a second acid or base generation zone, separated by a second barrier transporting ions only of the same charge as the second ions, and (c) transporting ions across the first barrier by applying an electrical potential through said first and second zones to generate an acid-containing aqueous solution in one of said first or second zones and a base-containing aqueous solution in the other one which may be combined to form a salt. Also, electrolytic apparatus for performing the above method.Type: GrantFiled: September 11, 2002Date of Patent: July 22, 2008Assignee: Dionex CorporationInventors: Yan Liu, Nebojsa Avdalovic
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Patent number: 7396441Abstract: An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.Type: GrantFiled: December 10, 2003Date of Patent: July 8, 2008Assignee: Aqua Innovations, Inc.Inventor: James Andrew Senkiw
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Patent number: 7381313Abstract: A method of operating an integrated hydrogen production and processing system is provided. The method includes operating an electrolyzer to produce hydrogen from water and utilizing heat generated from the electrolyzer to increase a temperature of an electrolyte in a first mode of operation. The method also includes heating the electrolyte in a second mode of operation by extracting heat from a hydrogen compressor to increase or maintain the temperature of the electrolyte during periods when electrolysis is not performed in the electrolyzer or during startup of the electrolyzer.Type: GrantFiled: June 30, 2005Date of Patent: June 3, 2008Assignee: General Electric CompanyInventors: Cara Suzanne Libby, Richard Scott Bourgeois
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Patent number: 7351316Abstract: Water electrolysis device determining stable isotopic composition of water and a water electrolysis method for stable isotopic composition of water capable of analyzing many samples easily, safely and at low cost in very short time, and rapidly analyzing 17O are provided. The water electrolysis device performing mass spectrometry of hydrogen or oxygen stable isotopic composition includes a proton exchange membrane of fluorocarbon polymer plated non-electrolytically with platinum, iridium, rhodium or iridium-rhodium alloy, and a cathode and an anode of porous titanium plated with platinum and sandwiching the proton exchange membrane, wherein water electrolyzes by introduction into the anode side chamber and supplying DC current between the anode and the cathode, and oxygen gas generated at the anode and hydrogen gas generated at the cathode respectively flows into an isotope ratio mass spectrometer.Type: GrantFiled: December 12, 2003Date of Patent: April 1, 2008Assignees: Japan Science and Technology Agency, Tokyo Institute of TechnologyInventors: Naohiro Yoshida, Osamu Abe, Ryu Uemura, Hiroshi Watanabe
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Publication number: 20080029406Abstract: An oxygen generator includes a monolithic body having first and second channels extending longitudinally therein. An electrode is operatively disposed in the first channels and a counter-electrode is operatively disposed in the second channels. The second channels are formed in the monolithic body so each second channel is electrically isolated from, yet adjacent to a first channel, resulting in an alternating configuration of first and second channels. The first channels have fluid or oxygen flowing therethrough, while the second channels have the other of oxygen or fluid flowing therethrough. An output manifold, having an oxygen collection area separated from a fluid collection area, operatively engages with the monolithic body. The oxygen collection area receives substantially pure oxygen from one of the second or first channels, and the fluid collection area receives oxygen-depleted fluid from the other of the first or second channels.Type: ApplicationFiled: August 7, 2006Publication date: February 7, 2008Inventors: David E. Nelson, Gerald R. Stabel, Joshua J. Titus, Alfred R. Webster
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Patent number: 7258779Abstract: A method and means for producing a combustible mixture of hydrogen and oxygen by electrolysis of water using a pulsed application of water onto electrodes while applying an electrical potential between electrodes and where the electrodes are not immersed in the water which flows between the electrodes while undergoing electrolysis.Type: GrantFiled: November 13, 2002Date of Patent: August 21, 2007Inventors: Alan Patrick Casey, Stewart Smith
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Patent number: 7153476Abstract: Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.Type: GrantFiled: June 21, 2002Date of Patent: December 26, 2006Assignee: Dionex CorporationInventors: Yan Liu, Hamish Small, Nebojsa Avdalovic
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Patent number: 7125480Abstract: A method for the ultra-fast photodissociation of water molecules into H2 and O2 gases is presented. Water vapor is initially produced and supplied to a photolysis bottle. Within the photolysis bottle, the water vapor is illuminated by a light signal to dissociate H2 and O2 gases from the water vapor. The dissociated H2 and O2 gases are radiated with an RF signal to inhibit recombination of the dissociated H2 and O2 gases, and the dissociated H2 and O2 gases are subsequently recovered.Type: GrantFiled: May 29, 2003Date of Patent: October 24, 2006Assignee: Austin & Neff, LLCInventor: Gary Austin
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Patent number: 7037414Abstract: A photoelectrochemical cell which includes a light transmissive enclosure, a semiconductor photoanode disposed within the light transmissive enclosure, a semiconductor photocathode disposed within the light transmissive enclosure, and an electrolytic solution disposed entirely between the semiconductor photoanode and the semiconductor photocathode. This is achieved by the use of semiconductor photoelectrodes (photoanodes and photocathodes) which include a proton exchange membrane having an electrolyte facing surface in contact with the electrolytic solution and a light transmissive wall facing surface, and having a photo electro-catalyst disposed on the light transmissive wall facing surface.Type: GrantFiled: July 11, 2003Date of Patent: May 2, 2006Assignee: Gas Technology InstituteInventor: Qinbai Fan
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Patent number: 6955922Abstract: Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.Type: GrantFiled: July 7, 2000Date of Patent: October 18, 2005Assignee: Dionex CorporationInventors: Yan Liu, Hamish Small, Nebojsa Avdalovic
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Patent number: 6896789Abstract: A system for producing one or more gases for enhancing combustion in an internal combustion engine, the engine having an intake, the system comprising: an electrolysis cell, for generating one or more combustion enhancing gases under pressure; a gas conduit, for connecting the electrolysis cell to the internal combustion engine; and a flow regulator, operatively connected between the electrolysis cell and the intake of the engine, for regulating a flow of the combustion enhancing gases to the engine.Type: GrantFiled: June 3, 2002Date of Patent: May 24, 2005Assignee: Canadian Hydrogen Energy Company LimitedInventor: Bill Ross
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Patent number: 6860983Abstract: A process and apparatus for recovering a metal from a feedstock containing a compound of the metal. The process includes an electrowinning step in which a leachate comprising a salt of the metal, dissolved in an aqueous acid solution, is subjected to electrowinning in an electrolytic cell, wherein elemental metal is deposited on the cathodes of the cell and oxygen is generated at the anodes. The oxygen generated at the anodes is collected and is then at least partially consumed in an oxygen-consuming step of the process. Preferably, the oxygen-consuming step comprises an atmospheric or pressure leaching step in which the metal compounds in the feedstock become dissolved in a leachate in the form of metal salts, preferably sulfates. The recovery and use of anode oxygen in a leaching process encourages the use of mist-reducing technology in existing and new electrowinning facilities.Type: GrantFiled: July 11, 2002Date of Patent: March 1, 2005Assignee: Hatch Ltd.Inventors: Mark Bellino, Garfield Bryn Harris
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Publication number: 20040262166Abstract: This invention discloses and claims the low temperature reduction and purification of refractory metals, metal compounds, and semi-metals. The reduction is accomplished using non-aqueous ionic solvents in an electrochemical cell with the metal entity to be reduced. Using this invention, TiO2 is reduced directly to Ti metal at room temperature.Type: ApplicationFiled: June 24, 2003Publication date: December 30, 2004Inventors: William E. O'Gardy, Graham T. Cheeck
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Patent number: 6827838Abstract: A method of separating and recovering 18F from 18O water at high purity and efficiency while maintaining the purity of the 18O water. By using a solid electrode (1) as an anode and a container (electrodeposition vessel) (2) made of platinum as a cathode, 18F in a solution (4) is electrodeposited on the solid electrode surface by applying a voltage. Then, by using the solid electrode (1) on which 18F is electrodeposited as a cathode and a container (recovery vessel) (5) holding pure water therein as an anode, 18F is recovered in the pure water by applying a voltage of opposite polarity to that of the electrodeposition. In this process, little 18O water is lost. The initial concentration of the 18O water is maintained even after the electrodeposition of 18F, so that the 18O water can be repeatedly used as an irradiation target for production of 18F.Type: GrantFiled: August 9, 2002Date of Patent: December 7, 2004Assignee: RikenInventors: Toshio Hyodo, Yoshiko Itoh, Fuminori Saito, Yasuyuki Nagashima, Toshikazu Kurihara, Akira Goto, Masayuki Kase, Yasushige Yano, Katsumi Senoo
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Patent number: 6814852Abstract: The present invention is drawn to the electrolysis of fluids in a lab-on-a-chip environment for generating gases. Various lab-on-a-chip embodiments are described along with a method of generating gas in a lab-on-a-chip environment. The method comprises the steps of (a) providing a substrate having active circuitry thereon, at least a portion of said active circuitry being readable by a computer; (b) providing an electrolytic cell configured for communication with the active circuitry, said electrolytic cell comprising an anode and a cathode in an electrolytic fluid bath; and (c) generating a gas in the electrolytic fluid bath by creating an electrical potential between the anode and the cathode through the electrolytic fluid bath.Type: GrantFiled: July 15, 2002Date of Patent: November 9, 2004Assignee: Hewlett-Packard Development Company, L.P.Inventors: Clayton L. Holstun, David Tyvoll
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Patent number: 6790339Abstract: The invention relates to a process for the electrochemical preparation of chlorine from aqueous solutions of hydrogen chloride in an electrolysis cell, comprising an anode chamber and a cathode chamber, the anode chamber being separated from the cathode chamber by a cation exchange membrane, the anode chamber containing an anode and the cathode chamber a gas diffusion cathode, and the aqueous solution of hydrogen chloride being passed into the anode chamber and an oxygen-containing gas into the cathode chamber, and the oxygen pressure in the cathode chamber being at least about 1.05 bar.Type: GrantFiled: July 30, 2002Date of Patent: September 14, 2004Assignee: Bayer AktiengesellschaftInventors: Andreas Bulan, Fritz Gestermann, Hans-Dieter Pinter, Gerd Speer
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Publication number: 20040171701Abstract: A process for the production of methanol comprises feeding an amount of a hydrocarbon feedstock and an amount of an oxygen feedstock to a partial oxidation reactor to produce a partial oxidation reactor effluent comprising hydrogen, carbon monoxide and carbon dioxide; adding an amount of a hydrogen feedstock to the partial oxidation reactor effluent to produce a synthesis gas stream having a predetermined ratio of hydrogen to carbon monoxide; and, subjecting the synthesis gas stream to methanol synthesis to produce a methanol product stream and a tail gas stream wherein reformation is not used to provide hydrogen as a product. Reformation may be used to consume hydrogen so that carbon dioxide preferably obtained as a by product of another process so that the instant process becomes effectively a temporary carbon sink to convert carbon dioxide, which would otherwise be released to the atmosphere, to a stored carbon source.Type: ApplicationFiled: March 12, 2004Publication date: September 2, 2004Applicant: Technology Convergence Inc.Inventor: John M. Shaw
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Patent number: 6783885Abstract: An electrochemical cell system includes a hydrogen electrode; an oxygen electrode; a membrane disposed between the hydrogen electrode and the oxygen electrode; and a compartmentalized storage tank. The compartmentalized storage tank has a first fluid storage section and a second fluid storage section separated by a movable divider. The compartmentalized storage tank is in fluid communication with the electrochemical cell. Further, an electrochemical cell includes a hydrogen electrode; an oxygen electrode; an electrolyte membrane disposed between and in intimate contact with the hydrogen electrode and said oxygen electrode; an oxygen flow field disposed adjacent to and in intimate contact with the oxygen electrode; a hydrogen flow field disposed adjacent to and in intimate contact with the hydrogen electrode; a water flow field disposed in fluid communication with the oxygen flow field; and a media divider disposed between the oxygen flow field and the water flow field.Type: GrantFiled: August 20, 2002Date of Patent: August 31, 2004Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Trent M. Molter
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Publication number: 20040118701Abstract: An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. A flow-through model for oxygenating flowing water is disclosed. The use of supersaturated water for enhancing the growth of plants is disclosed. Methods for applying supersaturated water to plants manually, by drip irrigation or in hydroponic culture are described. The treatment of waste water by raising the dissolved oxygen with the use of an oxygen emitter is disclosed.Type: ApplicationFiled: December 10, 2003Publication date: June 24, 2004Inventor: James Andrew Senkiw
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Patent number: 6712951Abstract: An ozone generator which operates at constant pressures to produce a continuous flow of ozone in an oxygen stream having from 10% to 18% by weight of ozone. The ozone generator includes one or more electrolytic cells comprising an anode/anode flow field, a cathode/cathode flow field, and a proton exchange medium for maintaining the separation of ozone and oxygen from hydrogen. The ozone generator also has an anode reservoir which vents oxygen and ozone and a cathode reservoir which vents hydrogen. The anode reservoir can be filled from the cathode reservoir while continuing to produce ozone. The ozone generator is readily configured for self-control using a system controller programmed to operate the anode reservoir at a constant pressure.Type: GrantFiled: September 19, 2001Date of Patent: March 30, 2004Assignee: Lynntech International, Ltd.Inventors: Craig C. Andrews, Oliver J. Murphy
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Publication number: 20040028576Abstract: Methods of providing ozone at a selected pressure above atmospheric pressure include supplying a purge gas supply (22) pressurized above the selected pressure to at least one ozone adsorption apparatus (12); desorbing ozone from the ozone adsorption apparatus (12) with the pressurized purge gas supply (22); and delivering a mixture of ozone and the purge gas supply (24) at the selected pressure without further compression.Type: ApplicationFiled: April 21, 2003Publication date: February 12, 2004Applicant: The BOC Group Inc.Inventor: Ravi Jain
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Patent number: 6689262Abstract: An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The hydrogen forms bubbles at the cathode, which bubbles rise to the surface. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. The electrodes may be a metal or oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, iron, rhodium, rhenium, cobalt, tungsten, manganese, tantalum, molybdenum, lead, titanium, platinum, palladium and osmium or oxides thereof. The electrodes may be formed into open grids or may be closed surfaces. The most preferred cathode is a stainless steel mesh. The most preferred mesh is a {fraction (1/16)} inch grid. The most preferred anode is platinum and iridium oxide on a support. A preferred support is titanium. Models suitable for different uses are disclosed.Type: GrantFiled: February 21, 2003Date of Patent: February 10, 2004Assignee: Aqua Innovation, Inc.Inventor: James Andrew Senkiw
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Patent number: 6682701Abstract: Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.Type: GrantFiled: July 7, 2000Date of Patent: January 27, 2004Assignee: Dionex CorporationInventors: Yan Liu, Hamish Small, Nebojsa Avdalovic
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Patent number: 6641713Abstract: An object of the invention is to provide a sodium refining apparatus which has a simple constitution and does not deteriorate a solid electrolyte employed therein. The sodium refining apparatus of the invention, in which impurities contained in sodium are removed by a solid electrolyte having sodium ion conductivity, includes a bottom-closed casing made of a solid electrolyte and containing a small amount of highly pure sodium; an outer casing accommodating said bottom-closed casing and containing, outside said bottom-closed casing, impurity-containing sodium; a first electrode inserted in the impurity-containing sodium; a second electrode inserted in the highly pure sodium; and a power source for applying DC voltage to the electrodes; wherein the impurity-containing sodium and the highly pure sodium are in electrical contact with each other via the solid electrolyte.Type: GrantFiled: June 22, 2001Date of Patent: November 4, 2003Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Toshiro Nishi, Chisato Tsukahara, Hitoshi Kaguchi, Yukinori Usui, Kazuya Kurome
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Publication number: 20030164306Abstract: An oxygen emitter which is an electrolytic cell is disclosed. When the anode and cathode are separated by a critical distance, very small microbubbles and nanobubbles of oxygen are generated. The hydrogen forms bubbles at the cathode, which bubbles rise to the surface. The very small oxygen bubbles remain in suspension, forming a solution supersaturated in oxygen. The electrodes may be a metal or oxide of at least one metal selected from the group consisting of ruthenium, iridium, nickel, iron, rhodium, rhenium, cobalt, tungsten, manganese, tantalum, molybdenum, lead, titanium, platinum, palladium and osmium or oxides thereof. The electrodes may be formed into open grids or may be closed surfaces. The most preferred cathode is a stainless steel mesh. The most preferred mesh is a {fraction (1/16)} inch grid. The most preferred anode is platinum and iridium oxide on a support. A preferred support is titanium. Models suitable for different uses are disclosed.Type: ApplicationFiled: February 21, 2003Publication date: September 4, 2003Inventor: James Andrew Senkiw
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Publication number: 20030155254Abstract: Solid membranes comprising an intimate, gas-impervious, multi-phase mixture of an electronically-conductive material and an oxygen ion-conductive material and/or a mixed metal oxide of a perovskite structure are described. Electrochemical reactor components, such as reactor cells, and electrochemical reactors are also described for transporting oxygen from any oxygen-containing gas to any gas or mixture of gases that consume oxygen. The reactor cells generally comprise first and second zones separated by an element having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces. The element may further comprise (1) a porous substrate, (2) an electron-conductive metal, metal oxide or mixture thereof and/or (3) a catalyst.Type: ApplicationFiled: December 6, 2001Publication date: August 21, 2003Inventors: Terry J. Mazanec, Thomas L. Cable, John G. Frye, Wayne R. Kliewer
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Publication number: 20030062267Abstract: In a method and an apparatus for generating a portable sterilizing water that can be easily used at, for example, hospitals, cafeterias of nursing facilities, restaurants, hair salons or homes, an electrolyzer is structured such that a tubular-shaped ferrite anode and a cathode are arranged alternately in a concentric manner with an inter-electrode distance, and integrated with a pressurizable solution container containing halogen ions and a power control apparatus so that it can be carried and operated by one hand.Type: ApplicationFiled: May 24, 2002Publication date: April 3, 2003Inventors: Shinichi Nakamura, Kunihiko Fukuzuka, Masaki Miyashita
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Patent number: 6495025Abstract: The method of producing O2 from water, that includes subjecting water to electrolysis, to produce H2 and O2, returning H2 to a water storage zone, drying the produced O2, using air as a drying agent, flowing a stream of that drying agent air to the cathode side of fuel cell, flowing a stream of produced hydrogen to the anode side of the fuel cell, for reaction with O2 in the agent air to produce water electrical energy and heat, and using electrical energy produced by fuel cell in the electrolysis.Type: GrantFiled: April 20, 2001Date of Patent: December 17, 2002Assignee: Aerovironment, Inc.Inventor: Omourtag Velev
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Publication number: 20020179454Abstract: A system for producing one or more gases for enhancing combustion in an internal combustion engine, the engine having an intake, the system comprising: an electrolysis cell, for generating one or more combustion enhancing gases under pressure; a gas conduit, for connecting the electrolysis cell to the internal combustion engine; and a flow regulator, operatively connected between the electrolysis cell and the intake of the engine, for regulating a flow of the combustion enhancing gases to the engine.Type: ApplicationFiled: June 3, 2002Publication date: December 5, 2002Applicant: Global Tech Environmental Products Inc.Inventor: Bill Ross
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Publication number: 20020182741Abstract: Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.Type: ApplicationFiled: June 21, 2002Publication date: December 5, 2002Applicant: Dionex CorporationInventors: Yan Liu, Hamish Small, Nebojsa Avdalovic
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Publication number: 20020177233Abstract: Method and apparatus for generating an acid or base, e.g. for chromatographic analysis of anions. For generating a base the method includes the steps of providing a cation source in a cation source reservoir, flowing an aqueous liquid stream through a base generation chamber separated from the cation source reservoir by a barrier (e.g. a charged membrane) substantially preventing liquid flow while providing a cation transport bridge, applying an electric potential between an anode cation source reservoir and a cathode in the base generation chamber to electrolytically generate hydroxide ions therein and to cause cations in the cation source reservoir to electromigrate and to be transported across the barrier toward the cathode to combine with the transported cations to form cation hydroxide, and removing the cation hydroxide in an aqueous liquid stream as an effluent from the first base generation chamber. Suitable cation sources include a salt solution, a cation hydroxide solution or cation exchange resin.Type: ApplicationFiled: June 21, 2002Publication date: November 28, 2002Applicant: Dionex CorporationInventors: Yan Liu, Hamish Small, Nebojsa Avdalovic
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Patent number: 6471850Abstract: An electrochemical cell system includes a hydrogen electrode; an oxygen electrode; a membrane disposed between the hydrogen electrode and the oxygen electrode; and a compartmentalized storage tank. The compartmentalized storage tank has a first fluid storage section and a second fluid storage section separated by a movable divider. The compartmentalized storage tank is in fluid communication with the electrochemical cell. Further, an electrochemical cell includes a hydrogen electrode; an oxygen electrode; an electrolyte membrane disposed between and in intimate contact with the hydrogen electrode and said oxygen electrode; an oxygen flow field disposed adjacent to and in intimate contact with the oxygen electrode; a hydrogen flow field disposed adjacent to and in intimate contact with the hydrogen electrode; a water flow field disposed in fluid communication with the oxygen flow field; and a media divider disposed between the oxygen flow field and the water flow field.Type: GrantFiled: December 14, 2000Date of Patent: October 29, 2002Assignee: Proton Energy Systems, Inc.Inventors: Jason K. Shiepe, Trent M. Molter
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Publication number: 20020108864Abstract: The present invention relates to an arc processing method and device with simultaneous chemical etching wherein the device comprises a conductive electrode, being the cathode, an auxiliary electrode, being the anode, an conductive fluid, and an non-conductive work piece for processing. Processing, and precision processing in particular, of non-conductive materials is obtained by simultaneous arc discharge and etching that are brought about by chemical reactions associated with cathode and anode. Moreover, the present invention discloses simultaneous arc processing and chemical etching that offers improved processing efficiency over conventional arc processing.Type: ApplicationFiled: February 9, 2001Publication date: August 15, 2002Applicant: Industrial Technology Research InstituteInventors: Ching-Tang Yang, Hung-Yin Tsai, Tung-Chuan Wu
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Patent number: 6428680Abstract: A room in a building serving as a safe haven for human inhabitants against harmful agent attack such as chemical or biological weapon attack. The room provides an environment sealed from air-carried harmful agents wherein the sealing can be accomplished by blocking air ducts and air leakage around doors. The room can be specially built, retrofitted, or rapidly adapted to serve as a safe haven. The room can include an oxygen source such as an oxygen generator. One oxygen generator utilizes a chemical process to generate gaseous oxygen. The room preferably includes a carbon dioxide scrubber. The invention includes kits and methods for rapidly converting a room to a safe haven.Type: GrantFiled: July 23, 1999Date of Patent: August 6, 2002Assignee: Honeywell International Inc.Inventor: Ruth D. Kreichauf
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Patent number: 6383361Abstract: A fluid management system for use in water electrolysis systems for filtering the system water and recombining hydrogen and oxygen. The fluid management system includes a phase separation tank having a filter containing a catalyzed ion exchange resin. Hydrogen/water mixture and an oxygen/water mixture are introduced into the resin where hydrogen is recombined with oxygen to produce recovered water. Trace contaminant ions and particles are removed from the water by the ion exchange resin and the filter.Type: GrantFiled: November 14, 2000Date of Patent: May 7, 2002Assignee: Proton Energy SystemsInventors: Lawrence C. Moulthrop, Jr., Trent M. Molter, Robert J. Friedland
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Patent number: 6368491Abstract: The invention relates generally to ceramic oxygen generating modules, and more particularly, to an apparatus and method for controlling a duty cycle for each of a plurality of ceramic oxygen generating modules in a modular ceramic oxygen generating system.Type: GrantFiled: November 8, 2000Date of Patent: April 9, 2002Assignee: Northrop Grumman CorporationInventors: Tuan Q. Cao, Russell F. Hart
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Patent number: 6338786Abstract: An improved method of separating hydrogen gas entrained with a first aqueous electrolytic solution of a water electrolyser for producing said hydrogen and said oxygen gas entrained with a second aqueous electrolyte solution, said method comprising producing a first two-phase flow discharge of said hydrogen gas in said first solution; producing a second two-phase flow discharge of said oxygen gas in said second solution; feeding said first discharge to a first separation chamber having a portion defining a hydrogen chamber to effect separation of said hydrogen gas from said first discharge; feeding said second discharge to a second separation chamber having a portion defining an oxygen chamber to effect separation of said oxygen gas from said second discharge; collecting said hydrogen gas from said hydrogen chamber; collecting said oxygen gas from said oxygen chamber; collecting said first discharge; collecting said second discharge; the improvement wherein at least one of said first discharge is discharged inType: GrantFiled: July 16, 1999Date of Patent: January 15, 2002Assignee: Stuart Energy Systems CorporationInventors: Steven J. Thorpe, Raynald G. Lachance, Daniel Tapin
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Publication number: 20010052468Abstract: The invention is relative to an electrode for gas evolution in electrolytic and electrometallurgical industrial applications, made of a metal substrate having a surface morphology characterized by a combination of micro-roughness and macro-roughness which favors high adherence of a superficial catalytic layer in order to prevent detachment of the same and passivation of the substrate even under critical operating conditions.Type: ApplicationFiled: May 16, 2001Publication date: December 20, 2001Inventors: Ruben Ornelas Jacobo, Giuseppe Faita, Lawrence Gestaut, Corrado Mojana