Hydrogen Generating Patents (Class 252/188.25)
  • Publication number: 20100285354
    Abstract: CNT encapsulated carbon nanofibers (CNFs @ CNTs) having a one-dimensional structure are provided by selective assembling CNFs inside the channel of CNTs via impregnation of catalyst inside CNTs and subsequent chemical vapour deposition of hydrocarbon. The new structure is used as material for energy storage.
    Type: Application
    Filed: October 2, 2008
    Publication date: November 11, 2010
    Inventors: Dangsheng Su, Jian Zhang, Robert Schloegl, Joachim Maier
  • Publication number: 20100242729
    Abstract: This invention relates to adsorbents useful for storing hydrogen and other small molecules, and to methods for preparing such adsorbents. The adsorbents are produced by heating carbonaceous materials to a temperature of at least 900° C. in an atmosphere of hydrogen.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 30, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK BRANDON SHIFLETT, SUBRAMANIAM SABESAN, STEVEN RAYMOND LUSTIG, PRATIBHA LAXMAN GAI
  • Publication number: 20100230636
    Abstract: Solid-state hydrogen fuel with a polymer matrix and fabrication methods thereof are presented. The solid-state hydrogen fuel includes a polymer matrix, and a crushed mixture of a solid chemical hydride and a solid-state catalyst uniformly dispersed in the polymer matrix. The fabrication method for the solid-state hydrogen fuel includes crushing and mixing a solid chemical hydride and a solid-state catalyst in a crushing/mixing machine, and adding the polymer matrix into the mixture of the solid chemical hydride and the solid-state catalyst to process a flexible solid-state hydrogen fuel. Moreover, various geometric and/or other shapes may be formed and placed into suitable vessels to react with a particular liquid and provide a steady rate of hydrogen release.
    Type: Application
    Filed: June 2, 2009
    Publication date: September 16, 2010
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chan-Li Hsueh, Jie-Ren Ku, Shing-Fen Tsai, Ya-Yi Hsu, Cheng-Yen Chen, Reiko Ohara, Ming-Shan Jeng, Fanghei Tsau
  • Patent number: 7771612
    Abstract: In contrast, the alkaline compound included in the composition of the Document D1 is strong alkali, such as sodium hydroxide. Therefore, the oxide of an alkaline earth metal used in the amended invention is not disclosed or suggested in the D1 at all. In addition, the composition of D1 is an oxygen scavenger and it includes compound which enhance the reaction of oxygen with hydrogen, such as catalyst. Therefore, its hydrogen generating ability is lower than that of the claimed invention.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: August 10, 2010
    Assignee: Nitto Denko Corporation
    Inventors: Taiichi Sugita, Masaya Yano, Masakazu Sugimoto
  • Publication number: 20100136441
    Abstract: An energy supply system which includes an energy generation part, a hydrogen supply part (2), and a treatment part (5). The energy generation part is supplied with hydrogen and oxygen and generates energies. The hydrogen supply part (2) generates hydrogen through the reaction of water (23) contained in the gas discharged from the energy generation part with a hydrogen-generating substance (21) disposed in an inner part of the supply part (2). The hydrogen-generating substance (21) comprises magnesium. In the treatment part (5), the hydroxide compound (22) resulting from the reaction of the water (23) with the hydrogen-generating substance (21) is supplied to a gas and carbon dioxide contained in the gas is reacted with the hydroxide compound (22) to obtain a carbonate compound (24) and water as a reaction product.
    Type: Application
    Filed: March 27, 2007
    Publication date: June 3, 2010
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasushi Mori, Tadashi Gengo, Yoshinori Kobayashi
  • Publication number: 20100034733
    Abstract: The present invention provides a catalyst for the decomposition of formic acid including a dinuclear metal complex represented by a formula (1) below, a tautomer or stereoisomer thereof, or any of their salts, where M1 and M2 are transition metals and may be the same or different; Ar is a ligand having aromaticity and may be unsubstituted or substituted by one or more substituents; R1 to R27 are each independently a hydrogen atom, an alkyl group, or the like, or R15 and R16 may together form a —CH?CH—, where Hs in the —CH?CH— may be each independently replaced by an alkyl group or the like, and R23 and R24 may together form a —CH?CH—, where Hs in the —CH?CH— may be each independently replaced by an alkyl group or the like; L is an arbitrary ligand or is absent; and m is a positive integer, 0, or a negative integer.
    Type: Application
    Filed: May 17, 2007
    Publication date: February 11, 2010
    Applicant: OSAKA UNIVERSITY
    Inventors: Shunichi Fukuzumi, Tomoyoshi Suenobu, Seiji Ogo
  • Publication number: 20100035104
    Abstract: A crystalline AlH3 is ball-milled in a hydrogen atmosphere while applying a force of 10 G to 30 G (in which G is gravitational acceleration). The milling time is more than 10 minutes and less than 60 minutes. The hydrogen storage material thus produced has a structure containing a plurality of matrix phases and a grain boundary phase disposed between the matrix phases. The matrix phases comprise Al and have a side length of 1 to 200 nm, and the grain boundary phase comprises an amorphous phase and contains hydrogen in the state of a solid solution.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 11, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Mitsuya Hosoe, Terumi Furuta, Hiroshi Sakai, Izuru Kanoya
  • Publication number: 20100028216
    Abstract: The present invention relates to an apparatus for generating hydrogen gas using a composition for generating hydrogen gas, which generates hydrogen gas (H2) from water (H2O) through spontaneous thermochemical reaction without supplying electricity using a composition for generating hydrogen gas which generates the hydrogen gas by spontaneous oxidation with water at room temperature.
    Type: Application
    Filed: March 10, 2008
    Publication date: February 4, 2010
    Inventor: Jung-Tae Park
  • Publication number: 20100028499
    Abstract: A container (22) includes a shell (24) made from a polymer, for example PET, and incorporating a catalyst, for example a palladium catalyst. A closure (40) incorporates a plug which includes a source of hydrogen, for example a hydride. In use, with container (22) including a beverage and closure (40) in position, the headspace in the container will be saturated with water vapor. This vapor contacts the hydride associated with plug (42) and as a result the hydride produces molecular hydrogen which migrates into the polymer matrix of shell (24) and combines with oxygen which may have entered the container through its permeable walls. A reaction between the hydrogen and oxygen takes place, catalysed by the catalyst, and water is produced. Thus, oxygen which may ingress the container is scavenged and the contents of the container are protected from oxidation.
    Type: Application
    Filed: January 24, 2008
    Publication date: February 4, 2010
    Inventors: Mark Rule, Ronald J. Valus, Steven Burgess Tattum
  • Publication number: 20100019196
    Abstract: Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonification as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.
    Type: Application
    Filed: June 21, 2007
    Publication date: January 28, 2010
    Inventors: Ralph T. Yang, Yingwel Li, Anthony J. Lachawiec, JR.
  • Publication number: 20100012895
    Abstract: Chromium-free catalyst for the low-temperature conversion of carbon monoxide and water into hydrogen and carbon dioxide, which comprises a mixed oxide comprising at least copper oxide, zinc oxide and aluminum oxide, with the catalyst precursor being present essentially as hydrotalcite and the copper oxide content being not more than 20% by weight.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 21, 2010
    Applicant: BASF SE
    Inventors: Stephan Hatscher, Michael Hesse, Markus Hoelzle
  • Patent number: 7648644
    Abstract: A stabilized aqueous mixture containing at least one borohydride compound and at least one metal hydroxide compound. The mixture has improved stability with regard to decomposition of borohydride, especially at elevated temperatures.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: January 19, 2010
    Assignee: Rohm and Haas Company
    Inventors: Curtis Schwartz, John Hiroshi Yamamoto
  • Publication number: 20090302270
    Abstract: A process for the reversible storage of hydrogen, comprising bringing an alloy of alkaline metal and silicon into contact with gaseous hydrogen leading to the formation of the hydride or corresponding hydrides, comprises the use of at least one balanced system that corresponds to the formula: MXMSiMXMSiHn where M is selected from among Li, Na, or K and in which atomic ratios XM take on the following values: XLi=1 1?XNa?3 1?XK?2 n is the number of hydrogen atoms corresponding to the stoichiometry of the hydride or formed hydrides. or to the formula MSiXSiMSiXSiH2XSi+1 where M is selected from among Li, Na, or K and in which the atomic ratio XSi=Si/M takes on a value of 1 to 4.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Inventors: Pascal Raybaud, Francois Ropital
  • Publication number: 20090302269
    Abstract: New methods and compositions are disclosed that minimize foaming in hydrogen-releasing materials. Foaming can be minimized during release of hydrogen in composites that include structured forms such as wafers and discs. Change tolerances of from 0% to 25% in solid products described show promise for next-generation fuel elements and devices.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 10, 2009
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Daiwon Choi, Abhijeet J. Karkamkar, S. Thomas Autrey, Christopher L. Aardahl
  • Publication number: 20090294728
    Abstract: The invention relates to a composite material storing hydrogen. Said composite material can alternate, in an essentially reversible manner, between a storage state and a non-storage state and optionally at least on intermediate state. In the storage state thereof, the system comprises the following constituents: (a) at least one first hydride constituent and (b) at least one second constituent that is at least one hydrogen-free constituent and/or one other hydride constituent. The at least one first hydride constituent and the at least one second constituent are in a first solid multiphase system, and during the changeover to the non-storage state of the system, the at least one first hydride constituent reacts with the at least one second constituent, forming H2, in such a way that, in the non-storage state, at least one other hydrogen-free compound and/or alloy is formed and another solid multiphase system is created.
    Type: Application
    Filed: March 30, 2005
    Publication date: December 3, 2009
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Gagik Barkhordarian, Thomas Klassen, Ruediger Bormann
  • Publication number: 20090289222
    Abstract: A process for preparing carbon and magnesium including composites, includes: a) contacting a carbon material including pores of which at least 30%, based on the total number of pores, have a pore diameter in the range 0.1 to 10×10?9 m with a molten metallic magnesium or magnesium alloy to obtain a intermediate composite; and b) cooling the intermediate composite to obtain a carbon and magnesium including composite. Also described is a carbon and magnesium including composite obtainable by the process of the invention, the use of a carbon and magnesium including composite obtainable by the process and a hydrogen storage system.
    Type: Application
    Filed: July 6, 2007
    Publication date: November 26, 2009
    Applicant: ADVANCED CHEMICAL TECHNOLOGIES FOR SUSTAINABILITY
    Inventors: Rudy Wilhelmus Peter Wagemans, Bibiana Sibbeltje Dauvillier, Petra Elisabeth De Jongh, Adrianus Jacobus Van Dillen, Krijn Pieter De Jong
  • Publication number: 20090258215
    Abstract: Compositions are disclosed for storing and releasing hydrogen and methods for preparing and using same. These hydrogen storage and releasing materials exhibit fast release rates at low release temperatures without unwanted side reactions, thus preserving desired levels of purity and enabling applications in combustion and fuel cell applications.
    Type: Application
    Filed: May 4, 2009
    Publication date: October 15, 2009
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: S. Thomas Autrey, Abhijeet J. Karkamkar, Anna Gutowska, Liyu Li, Xiaohong S. Li, Yongsoon Shin
  • Publication number: 20090242382
    Abstract: A source of hydrogen is a glass or glass-ceramic shell and a gas comprising at least 80% by volume of hydrogen. The glass shell has an initial permeability to hydrogen gas of less than about 50% decrease in pressure in 30 days and a final permeability to hydrogen of about 50% decrease in pressure in a few minutes or less, upon exposure of the glass to a continuous or pulsed fluence of at least 0.1 W/cm2 of electromagnetic radiation to modulate the microstructure of the glass and to increase the hydrogen gas permeability of the glass network. A method of providing hydrogen gas in the shell and exposing the shell to electromagnetic radiation of a wavelength and fluence that increases permeability of the shell to hydrogen gas so that encapsulated hydrogen gas permeates through the shell.
    Type: Application
    Filed: March 6, 2009
    Publication date: October 1, 2009
    Inventors: Kristina E. Lipinska-Kalita, Oliver Andreas Hemmers
  • Publication number: 20090121184
    Abstract: [Problem] To provide a hydrogen storage material which decreases the hydrogen release start temperature and the hydrogen release peak temperature, and to provide a method for manufacturing thereof. [Solution] Provided is a hydrogen storage material which contains: a mixture and a reaction product of lithium hydride and magnesium amide, wherein the lithium hydride and the magnesium amide are prepared by combining as the raw materials: one or more substance selected from the group consisting of an amide compound, an imide compound, and a nitride of magnesium, and an amide compound, an imide compound, and a nitride of lithium; and one or more substance selected from the group consisting of an amide compound, an imide compound, a nitride, a hydride, and a metal of magnesium, and an amide compound, an imide compound, a nitride, a hydride, and a metal of lithium, with the raw materials contains both magnesium and lithium metallic species.
    Type: Application
    Filed: March 27, 2006
    Publication date: May 14, 2009
    Inventor: Hironobu Fujii
  • Publication number: 20090123789
    Abstract: There is disclosed articles for and methods of confining volatile materials in the void volume defined by crystalline void materials. In one embodiment, the hydrogen isotopes are confined inside carbon nanotubes for storage and the production of energy. There is also disclosed a method of generating various reactions by confining the volatile materials inside the crystalline void structure and releasing the confined volatile material. In this embodiment, the released volatile material may be combined with a different material to initiate or sustain a chemical, thermal, nuclear, electrical, mechanical, or biological reaction.
    Type: Application
    Filed: May 9, 2008
    Publication date: May 14, 2009
    Inventors: William K. Cooper, James F. Loan, Christopher H. Cooper
  • Publication number: 20090057609
    Abstract: The present invention relates to solid compounds which generate hydrogen by combustion, and to a method for generating hydrogen based on the combustion of said compounds. Said compounds have a composition which includes at least one inorganic borohydride, selected from alkali borohydrides, alkaline-earth borohydrides and mixtures thereof, and at least one inorganic oxidant. Characteristically, said composition comprises sulfur. Said method is advantageously implemented for supplying hydrogen to a fuel cell.
    Type: Application
    Filed: July 9, 2008
    Publication date: March 5, 2009
    Applicant: SNPE MATERIAUX ENERGETIQUES
    Inventors: Christian Perut, Joel Renouard
  • Publication number: 20090053133
    Abstract: A hydrogen generating composition, capable of liberating hydrogen through a sorption mechanism in the presence of vapour or gas of a reagent which comprises a sorbent compound for sorption of the vapour or gas of the reagent and a hydrogen-releasing agent for liberating hydrogen from the reagent retained by the sorbent compound.
    Type: Application
    Filed: August 16, 2006
    Publication date: February 26, 2009
    Applicant: HER, HYDROGEN STORAGE SYSTEMS INC.
    Inventors: Alicja Zaluska, Leszek Zaluski
  • Publication number: 20090053134
    Abstract: A process, composition of matter, and apparatus for generating hydrogen are disclosed. The process includes providing an anhydrous hydride, forming a mixture of the hydride with an activating agent, and introducing a liquid reactant to the mixture to produce hydrogen. The mixture includes activating agent in the range of between about 20 to about 80 percent by dry weight.
    Type: Application
    Filed: August 26, 2008
    Publication date: February 26, 2009
    Applicant: TRULITE, INC.
    Inventors: James Kevin Shurtleff, Eric J. Ladd, Chris A. Brydon, John M. Patton, J. Howard Anderson
  • Publication number: 20080271377
    Abstract: A metal based hydrogen source contains metal such as Al, Zn, Mg that can react with water to produce hydrogen gas, borohydride such as sodium borohydride, potassium borohydride etc, and hydroxides such as NaOH and KOH etc. The hydrogen generation follows the following processes: First, metal aluminum reacts with water and hydroxide to produce hydrogen gas an heat, at the same time, hydroxide, the stabilizer of sodium borohydride, is consumed; As sodium borohydride is de-stabilized by the consuming of sodium hydroxide, hydrogen gas is produced through hydrolysis reaction of borohydride. The hydrolysis reaction can be accelerated by utilizing the heat that comes from aluminum's reaction with water. At the same time, hydroxides are partly or completely eliminated from the byproduct. The hydrogen gas produced may be used for any purpose.
    Type: Application
    Filed: June 17, 2005
    Publication date: November 6, 2008
    Applicant: H2VOLT, INC.
    Inventor: Yu Zhou
  • Patent number: 7128997
    Abstract: Representative embodiments provide for a fuel activation device including a fuel storage chamber configured to store a plurality of fuel pellets arranged as a stack. A fuel dispensing device is configured to transport a fuel pellet to a fuel activation chamber. A spring is configured to advance the fuel pellets toward the fuel dispensing device as one or more fuel pellets are removed from the stack. A fuel initiator is configured to activate a release of hydrogen gas from the transported fuel pellet. The fuel activation device is configured to provide the hydrogen gas to a fuel cell through a gas vent. A method is provided including providing a plurality of fuel pellets arranged as a spring-loaded stack, transporting a fuel pellet from the stack, activating a release of hydrogen gas from the transported fuel pellet, and providing the hydrogen gas to a fuel cell.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: October 31, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Philip H. Harding, Louis C. Barinaga, John C. Greeven, Paul H. McClelland, Joseph W. Tsang, Makarand Gore
  • Patent number: 7052671
    Abstract: A composition comprising a carrier liquid; a dispersant; and a chemical hydride. The composition can be used in a hydrogen generator to generate hydrogen for use, e.g., as a fuel. A regenerator recovers elemental metal from byproducts of the hydrogen generation process.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: May 30, 2006
    Assignee: Safe Hydrogen, LLC
    Inventors: Andrew W. McClaine, Jonathan L. Rolfe, Christopher A. Larsen, Ravi K. Konduri
  • Patent number: 7029600
    Abstract: A complex aluminum hydride doped with a catalytic material adapted to increase the kinetics of hydrogen absorption/desorption of the aluminum hydride without reducing the hydrogen storage capacity of the aluminum hydride.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: April 18, 2006
    Assignee: Ovonie Fuel Cell LLC
    Inventors: Stanford R. Ovshinsky, Boyko Aladjov, Srinivasan Venkatesan, Meera Vijan, Subhash K. Dhar
  • Patent number: 7011768
    Abstract: The present invention concerns compositions, apparatus and methods for hydrogen storage. In certain embodiments, the compositions comprise sodium alanate and {n5-C5H5}2TiH2. In preferred embodiments, the components of the composition are present in specified molar ratios, for example 0.7 NaH to 1.0 Al to 0.1 Ti. In various embodiments, the hydrocarbon rings coordinating the titanium are removed from the composition, for example by melting at 182° C. or higher or by cyclic discharge and recharge of hydrogen at temperatures of 100° C. or less. Methods for producing and using the claimed compositions are also provided. In various embodiments, the alanate composition may be stored, shipped and used in a modular container, such as a cassette. Exemplary hydrogen utilizing systems and methods for ordering, distribution and shipping of cassettes are also disclosed herein.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: March 14, 2006
    Assignee: FuelSell Technologies, Inc.
    Inventors: Craig M. Jensen, Scott D. Redmond
  • Patent number: 6866689
    Abstract: An aqueous fuel for generating hydrogen includes alkaline aqueous composition of about 17 to 37 mole percent of a sodium borohydride, and from about 0.001 to 1 mole percent of sodium hydroxide.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: March 15, 2005
    Assignee: Montgomery Chemicals, LLC.
    Inventors: Charles A. Lumsden, Thomas Hugh Evans
  • Patent number: 6746630
    Abstract: The claims are drawn to a method of detecting seal breakage or incomplete seal formation in a package, said method comprising the steps of: (i) providing said package, prior to sealing, with a strip or ring of an indicator comprising an oxygen scavenging composition which includes a source of labile hydrogen or electrons and at least one reducible organic compound, wherein said strip or ring is located on an internal surface adjacent to where a seal is to be formed, (ii) treating the strip or ring with electromagnetic energy so as to reduce the reducible organic compound to a reduced form which is oxidizable by ground state molecular oxygen regardless of the presence of a transition metal catalyst and such that, when oxidized, there is a detectable change in a characteristic of said composition selected from the group consisting of: colour, fluorescence emission and UV-visible, infrared or near-infrared absorption, (iii) subjecting said package to a sealing process intended to seal the package, and (iv) detec
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: June 8, 2004
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Michael Laurence Rooney
  • Patent number: 6726892
    Abstract: Various aspects of the present invention provides a nanocrystalline powder suitable for storing hydrogen and a method of producing such a powder. One embodiment provides a nanocrystalline powder containing crystals of an aluminum alloy selected from the group consisting of NaAlx, LiAlx, and MgAl2x, wherein x is between 0.9 and 1.1, desirably 0.95-1.05, preferably about 1. The nanocrystalline powder also desirably includes an intercalated catalyst selected from the group consisting of C, Ti, Pt, Pd, V, Zr, and combinations of two or more of those materials.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: April 27, 2004
    Assignee: Quantum Fuel Systems Technologies Worldwide, Inc.
    Inventor: Ming Au
  • Publication number: 20040065865
    Abstract: The invention relates to a solid composition which can decompose with the generation of hydrogen according to a self-sustaining combustion reaction after initiation of this reaction by an appropriate heat source, this composition being characterized in that it comprises an alkali metal borohydride or alkaline earth metal borohydride and a perchlorate-based oxidizing salt corresponding to the general formula XClO4 in which X represents the NH4 group, an alkali metal or an alkaline earth metal.
    Type: Application
    Filed: September 5, 2003
    Publication date: April 8, 2004
    Applicant: SNPE
    Inventors: Nancy Desgardin, Christian Perut, Joel Renouard
  • Publication number: 20030228252
    Abstract: An apparatus, system, and method generate hydrogen through a controlled chemical reaction between water and a chemical hydride. The invention includes a chemical hydride isolated from water by a water-selective membrane. A fluid containing water is brought into contact with the water-selective membrane. The water diffuses through the water-selective membrane and reacts with the chemical hydride. The water diffuses through the membrane at a predetermined rate based on a water concentration gradient across the water-selective membrane. The water-selective membrane is substantially impermeable to elements and molecules other than water. Hydrogen generated within the chemical hydride is collected and used in various applications.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 11, 2003
    Inventor: James Kevin Shurtleff
  • Patent number: 6642047
    Abstract: The present invention provides a method and device for creating an environment in a container that is suitable for growing anaerobic bacteria. The device utilizes exothermic chemistry to deplete oxygen and drive the decomposition of a bicarbonate present in the closed system. The decomposition of the bicarbonate results in the release of carbon dioxide. The result of this exothermic reaction and decomposition of the bicarbonate in the closed system results in a suitable oxygen depleted, carbon dioxide enriched atmospheric environment for the growth of anaerobic bacteria. The device is formed of an air permeable package containing a heat generating composition and a bicarbonate. The air-permeable package is contained within an outer wrap that forms an air barrier to the air-permeable package. To activate the heat generating composition, the outer wrap is removed to expose the air-permeable package to the oxygen within the container.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: November 4, 2003
    Assignee: Becton, Dickinson and Company
    Inventor: William Francis Seip
  • Patent number: 6517728
    Abstract: A composition for reducing the concentration of molecular oxygen present in an atmosphere or liquid, comprising at least one reducible organic compound which is reduced under predetermined conditions, the reduced form of the compound being oxidizable by molecular oxygen, wherein the reduction and/or subsequent oxidation of the organic compound occurs independent of the presence of a transition metal catalyst.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: February 11, 2003
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Michael Laurence Rooney
  • Patent number: 6346200
    Abstract: A composition for reducing the concentration of molecular oxygen present in an atmosphere or liquid, comprising at least one reducible organic compound which is reduced under predetermined conditions, the reduced form of the compound being oxidizable by molecular oxygen, wherein the reduction and/or subsequent oxidation of the organic compound occurs independent of the presence of a transition metal catalyst.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: February 12, 2002
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventor: Michael Laurence Rooney
  • Patent number: 6322723
    Abstract: The invention is concerned with a method of producing hydrogen gas. The method comprises the steps of: providing in a reaction container a composition including respective quantities of particulate elemental magnesium, particulate elemental iron, an additional elemental metal selected from the group consisting of particulate elemental aluminum and particulate elemental zinc at a level of from about 1-10% by weight, an alkali metal salt and water; causing said composition to react in said container to generate hydrogen gas; and recovering said evolved hydrogen gas.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: November 27, 2001
    Assignee: Hydronics, L.L.C.
    Inventor: Stephen R. Thomas
  • Patent number: 6254804
    Abstract: An oxygen scavenger composition, for use in or with plastics materials, includes a polymer or oligomer having at least one cyclohexene group or functionality. The composition produces only low levels of volatile or extractable (from a plastics material in which it is incorporated) products as a consequence of oxygen scavenging.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: July 3, 2001
    Assignee: Cryovac, Inc.
    Inventors: Andrew E. Matthews, Craig Depree
  • Patent number: 6184432
    Abstract: Methods and products for thermally degrading unwanted substances is provided which involves contacting such substances with a particulate metal composition in the presence of water and an alkali metal salt, and causing sufficient heat to be generated during such contacting to degrade the substance. The particulate metal compositions include respective quantities of particulate iron and magnesium, and optionally quantities of particulate aluminum and zinc. The compositions generate temperatures on the order of 300-550° F. during such thermal degradations, along with quantities of hydrogen gas and water vapor.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: February 6, 2001
    Assignee: Hydronics, L.L.C.
    Inventor: Stephen R. Thomas