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| Number | Title | Issue Date |
| 7431032 | Low power ambulatory oxygen concentrator An oxygen concentrator comprises a vacuum swing adsorption (VSA) gas separation system which includes a cartridge containing a mass of adsorbent material for producing oxygen, a drive which activates the gas separation system, and a power source comprising a mass. A... | 10/07/2008 |
| 7396387 | Pressure swing adsorption process for large capacity oxygen production The present invention generally relates to large capacity (e.g., greater than 350 tons/day O2) vacuum pressure adsorption (VPSA) systems and processes that employ a single train including four beds, at least one feed compressor feeding two beds simultaneo... | 07/08/2008 |
| 7367480 | Drink supply canister having a self-closing pressurization valve operable to receive a pressurization pin A drink supply canister for beverage dispensing apparatus for a residential refrigerator. The beverage dispensing apparatus includes a drink supplier including a drink supply canister holder for holding a plurality of the drink supply canisters, and a plurality of v... | 05/06/2008 |
| 7285154 | Xenon recovery system A first aspect of a process of recovering xenon from feed gas includes: providing an adsorption vessel containing adsorbent having a Xe/N2 selectivity ratio 50% and... | 10/23/2007 |
| 7250073 | Life support oxygen concentrator Gas separation by pressure swing adsorption (PSA) and vacuum pressure swing adsorption (VPSA), to obtain a purified product gas of the less strongly adsorbed fraction of the feed gas mixture, is performed with an apparatus having a plurality of adsorbers. The adsorb... | 07/31/2007 |
| 7246621 | Removal of carbon dioxide and carbon monoxide from patient expired gas during anesthesia A method and system for the application of molecular sieves to the removal of carbon dioxide and carbon monoxide from the patient expired gases during anesthesia. The system is especially useful in anesthesia using any of the halogenated ether inhalation anesthetic ... | 07/24/2007 |
| 7179324 | Continuous feed three-bed pressure swing adsorption system A three-bed pressure swing adsorption system providing a constant continuous supply gas, preferably containing a hydrogen component, in a multi-step and preferably in a twelve-step, process cycle that can produce a purified gas product, preferably hydrogen, on a con... | 02/20/2007 |
| 7171963 | Product pump for an oxygen concentrator A product pump for pumping separated product gas from an oxygen concentrator which produces oxygen-rich product gas by utilizing a vacuum swing adsorption (VSA) process. The oxygen concentrator comprises a cartridge containing an adsorbent material for separating th... | 02/06/2007 |
| 7105038 | Gas concentration method and its apparatus The present invention relates a method for concentrating a gas by applying a pressure difference to an adsorbent and an apparatus therefor, and particularly, a method for producing an enriched gas in a large amount by introducing a continuous production into every s... | 09/12/2006 |
| 7101415 | Methods for regenerating process gas purifier materials A continuous method of producing a process fluid gas from a feed stream that includes the process fluid and impurities. The method includes: (a) providing a first and second vessel, each vessel containing one or more regenerable purifier materials for removing at le... | 09/05/2006 |
| 7094276 | Hydrogen storage material and hydrogen storage apparatus The present invention involves a carbon-based hydrogen storage material which includes a carbon material, exhibiting a specific surface area, being 1,000 m2/g or more, and a bulk density, being from 0.4 g/cm3 or more to 1 g/cm3 or le... | 08/22/2006 |
| 7081153 | Gas generating system and method for inerting aircraft fuel tanks The present invention provides a system and method for generation of nitrogen enriched air for inerting aircraft fuel tanks. One embodiment of the present invention includes a duct assembly; a primary heat exchanger; a gas generating system heat exchanger; a first t... | 07/25/2006 |
| 7066985 | Portable gas fractionalization system A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at ... | 06/27/2006 |
| 7066986 | Apparatus for use in regenerating adsorbent An adsorber vessel for use in the adsorption of a component from a gas and subsequent regeneration by thermally induced desorption of the component comprises an inlet for regeneration gas having an inlet nozzle containing at least one heater element, and an outlet f... | 06/27/2006 |
| 7041272 | Systems and processes for providing hydrogen to fuel cells A process and system for providing a hydrogen-containing gas stream to a fuel cell anode that includes providing a hydrogen-containing gas stream that includes carbon monoxide, introducing the hydrogen-containing gas stream into a pressure swing adsorption module th... | 05/09/2006 |
| 7036521 | Air conserving slide valve A slide type valve (V) for regulating a gas generating system (10) that has at least a first and a second gas concentrating bed unit (12, 14) includes an outer body (120) with a slide face (106) having at least three open ports (130, 1... | 05/02/2006 |
| 7022159 | Process and apparatus for treating a feed gas A process and an apparatus related to the reduction of the level of a component in a feed gas such as air involving passing the gas to at least three parallel thermal swing adsorption zones charged with an adsorbent and operating according to an adsorption cycle, wh... | 04/04/2006 |
| 6989044 | Intermolecularly bound transition element complexes for oxygen-selective adsorption A process and composition for selectively adsorbing oxygen from a gaseous mixture. The chemisorption is carried out by a porous three-dimensional transition element complex comprised of intermolecularly bound TEC units, said units further comprised of at least one m... | 01/24/2006 |
| 6964692 | Carbon monoxide adsorption for carbon monoxide clean-up in a fuel cell system An apparatus removes carbon monoxide (CO) from a hydrogen-rich gas stream in a hydrogen fuel cell system. CO fouls costly catalytic particles in the membrane electrode assemblies of proton exchange membrane (PEM) fuel cells. A vessel houses a carbon monoxide adsorbe... | 11/15/2005 |
| 6955710 | On-board oxygen production system for aircraft, in particular long-range aircraft Method and system on board an aircraft for the production of an oxygen-enriched gas stream from an oxygen/nitrogen gas mixture, particularly air, comprising at least one adsorber containing at least one adsorbent for adsorbing at least some of the nitrogen molecules... | 10/18/2005 |
| 6911065 | Method and system for supplying high purity fluid A fluid purifying apparatus that includes a manifold that includes a first branch and a second branch, a first check valve coupled to the first branch of the manifold, and a purifier unit that includes a first end and a second end, wherein the first end is coupled t... | 06/28/2005 |
| 6905535 | Gas separation with split stream centrifugal turbomachinery A gas separation system for separating a feed gas mixture into a first gas component and a second gas component comprises a stator, and a rotor rotatably coupled to the stator. The stator includes a first stator valve face, a second stator valve surface, and a plura... | 06/14/2005 |
| 6878186 | Pure vacuum swing adsorption system and apparatus A pure vacuum swing adsorption/desorption system and method, wherein supplied air feedstock gas is consistently separated to obtain a high-purity oxygen end-product gas mixture, is described. The system and method separate high-purity oxygen product from air by sequ... | 04/12/2005 |
| 6790260 | Enhanced rate PSA process High product recovery and low BSF are achieved for fast-cycle shallow adsorbers in VPSA gas separation enabled by the coupled effects of high intrinsic adsorption rate and proper particle size selection. ... | 09/14/2004 |
| 6641645 | Vacuum swing adsorption process with controlled waste gas withdrawal A gas transfer segment of a vacuum swing adsorption process cycle utilizing multiple parallel adsorbent beds which undergo cyclic process steps to separate the components of a feed gas mixture, each bed having a feed end and a product end, wherein the gas... | 11/04/2003 |
| 6585804 | Pressure swing adsorption process operation at turndown conditions A method for operating a pressure swing adsorption process at turndown conditions by adding selected steps to the normal design operation of the process. The selected steps include the extension of a make product/no feed step and the addition of idle step... | 07/01/2003 |
| 6576044 | Process for the purification of nitric oxide A gas mixture comprised of nitric oxide and one or more impurities selected from nitrous oxide, nitrogen dioxide, nitrous acid, sulfur dioxide, carbonyl sulfide, water vapor and carbon dioxide is purified by pressure swing adsorption or temperature swing ... | 06/10/2003 |
| 6530974 | Method for the separation of molecules in the gas phase by adsorption by means of agglomerated solid inorganic adsorbents with a narrow and calibrated mesopore distribution The present invention relates to a novel family of inorganic solids with a narrow and calibrated mesopore distribution which are agglomerated with a binder; these solids can advantageously be used as adsorbents for the industrial separation of gas-phase c... | 03/11/2003 |
| 6527831 | Argon purification process A pressure swing process and system for purifying a first gas, preferably argon, from a crude feed gas stream containing the first gas and second gas(es) utilizes two adsorption beds and continuously promotes the crude feed gas to the bed during the proce... | 03/04/2003 |
| 6524370 | Oxygen production A two bed vacuum swing adsorption process for the production of oxygen is disclosed. Efficient use of air blowers and vacuum pumps maximizes the machine utilization and product gas purges in low flow and high flow modes to increase productivity while less... | 02/25/2003 |
| 6521019 | Air separation using monolith adsorbent bed A method of separating a first gaseous component from a gas mixture comprising a first gaseous component and a second gaseous component comprising passing the gaseous mixture into an adsorption zone containing an adsorbent material capable of preferential... | 02/18/2003 |
| 6517609 | Installation for the cyclic treatment of fluid by adsorption with valves with improved sealing The gas treatment installation operating on a treatment cycle, in which part of the cycle is performed at a pressure below atmospheric pressure, particularly a PSA, TSA or VSA installation, includes one or more gas treatment vessels containing adsorbent. ... | 02/11/2003 |
| 6514318 | Multistage system for separating gas by adsorption A pressure swing adsorption system for separating components of a gas mixture includes a first adsorbent module, and a second a adsorbent module coupled to the a first adsorbent module. The first adsorbent module includes a first gas inlet for receiving t... | 02/04/2003 |
| 6514319 | Life support oxygen concentrator Gas separation by pressure swing adsorption (PSA) and vacuum pressure swing adsorption (VPSA), to obtain a purified product gas of the less strongly adsorbed fraction of the feed gas mixture, is performed with an apparatus having a plurality of adsorbers.... | 02/04/2003 |
| 6475265 | Pressure swing adsorption method for production of an oxygen-enriched gas The present invention is a two stage PSA process for producing high purity oxygen from a feed air stream. Water, carbon dioxide and nitrogen are removed in a first stage. An oxygen selective adsorbent is used to adsorb oxygen in the second stage. High pur... | 11/05/2002 |
| 6471744 | Vacuum-pressure swing absorption fractionator and method of using the same The present invention involves a vacuum-pressure swing adsorption process for the separation of components of a fluid mixture. The process includes (a) transferring a fluid mixture through an adsorbent bed at an elevated pressure Ph so as to pr... | 10/29/2002 |
| 6468328 | Oxygen production by adsorption A process for producing an oxygen enriched product includes: (a) providing a gas separation apparatus having at least one bed containing a mixture of at least two different nitrogen selective adsorbents, wherein the at least one bed is free of lithium cat... | 10/22/2002 |
| 6428607 | Pressure swing adsorption process which provides product gas at decreasing bed pressure A pressure swing adsorption process for the separation of a pressurized feed gas containing at least one more strongly adsorbable component and at least one less strongly adsorbable component. The process comprises (a) introducing the pressurized feed gas... | 08/06/2002 |
| 6406521 | Process for purifying propylene A process is provided for the concentration and recovery of propylene from propane by a pressure swing adsorption (PSA) process using an adsorbent comprising AlPO-14. A PSA process is used to remove propylene from a C3 hydrocarbon stream compri... | 06/18/2002 |
| 6398853 | Gas separation with split stream centrifugal turbomachinery A gas separation system for separating a feed gas mixture into a first gas component and a second gas component comprises a stator, and a rotor rotatably coupled to the stator. The stator includes a first stator valve face, a second stator valve surface, ... | 06/04/2002 |
