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| Number | Title | Issue Date |
| 7854793 | Pressure swing adsorption system with indexed rotatable multi-port valves Pressure swing adsorption system comprising two or more vessels, each having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture; piping adapted to (1) introduce the feed gas mixture into... | 12/21/2010 |
| 7316734 | Volatile organic compound treatment apparatus A volatile organic compound treatment apparatus including an adsorber coming into contact with a gas to be treated and adsorbing volatile organic compounds; a plurality of pairs of electrodes, divided into a plurality of groups, which generate electric discharge so ... | 01/08/2008 |
| 7294170 | Apparatus for compressing and storing oxygen enriched gas An apparatus and process for supplying low pressure oxygen-enriched gas to a patient and at a moderate pressure to a radial compressor, whereupon it is compressed and fed to a high pressure storage tank. The oxygen-enriched gas is prioritized so that it is continuou... | 11/13/2007 |
| 7276107 | Indexing rotary dual valve for pressure swing adsorption systems The present invention relates to a PSA system using an indexing rotary dual valve regulating a stepping mode of operation that controls a variable bed inlet feed flow rate, controllable pressure between feed lines in different beds of the PSA system and varied outpu... | 10/02/2007 |
| 7178452 | Espresso machine having a rotating ceramic disk valve as a selective water/steam distributor An espresso machine provided with a rotating ceramic disk valve (1) as a selective water-steam distributor that is in a driving connection with a drive motor (2), and a control device (3) for controlling the drive motor (2). To increase t... | 02/20/2007 |
| 7160367 | PSA with adsorbents sensitive to contaminants Disclosed embodiments address contaminant management challenges that arise during production of desirably contaminant free product fluid in the operation of PSA equipment, and further address the more serious challenges that arise under intermittent operation of PSA... | 01/09/2007 |
| 7100372 | Vehicle air compressor device The present invention provides a vehicle air compressor device which includes a motor device serving as a driving power source, and a drier device that conducts compressed air; the drier device arranged opposite to the motor device; and a supporting member for suppo... | 09/05/2006 |
| 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 |
| 7008464 | Dehydration of wet gas utilizing intimate contact with a recirculating deliquescent brine A system for removing moisture from a wet gas stream including a vessel having a contact area containing deliquescing salts that produces brine as water is absorbed, the brine flowing to a collection area in the bottom of the vessel. A venturi positioned in a wet ga... | 03/07/2006 |
| 6896721 | Motor start-up unloading in an oxygen concentrator An oxygen concentrator is controlled during start-up to rapidly shuttle the sieve beds between communication with the pump and atmospheric pressure, so the pressure in the sieve beds is relieved while the pump motor is starting up. After the start-up period, the sie... | 05/24/2005 |
| 6887301 | Flow control in pressure swing adsorption systems A method for reducing shock during a flow of fluid between a higher pressure vessel and a lower pressure vessel. The method includes the steps of providing a conduit between the higher pressure vessel and the lower pressure vessel, and minimizing a rate of pressure ... | 05/03/2005 |
| 6827760 | Method and system for providing a desired atmosphere within an enclosure A system and method for passive hypoxic training provides a person with a low oxygen (hypoxic) environment. Oxygen sensors automatically monitor and control oxygen levels to maintain the altitude desired. CO2 levels are monitored and CO2 is eli... | 12/07/2004 |
| 6695895 | Fuel vapor handling apparatus and diagnostic apparatus thereof A fuel vapor handling apparatus supplies a purging air to a canister by using a purge pump and purges fuel desorbed from the canister into an intake pipe. A controller intermittently operates the purge so that the canister internal temperature recovers fr... | 02/24/2004 |
| 6669758 | Variable inlet air restriction for composition control of product gas A controller system for a molecular sieve device controls a product gas generated by n molecular sieve beds for separating a gas from an input gas supply. A valve assembly with n states has an input receiving the input gas and n outlets. Each valve state ... | 12/30/2003 |
| 6565624 | Altitude simulation method and system A system and method for passive hypoxic training provides a person with a low oxygen (hypoxic) environment. Oxygen sensors automatically monitor and control oxygen levels to maintain the altitude desired. CO2 levels are monitored and CO2 | 05/20/2003 |
| 6544483 | Adsorbent gas scrubber to dispose the gas generated during the semiconductor manufacturing process An adsorbent gas scrubber is provided in which the processing efficiency of the gas generated during semiconductor manufacturing can be increased, as the idle time of the system is reduced. The above mentioned object and other objects are accomplished by ... | 04/08/2003 |
| 6514313 | Gas purification system and method A gas purification system has at least one purifier in a purifier line with a gas supply inlet at one end and a process outlet at an opposite end for connection to a process tool using the purified gas. A vent line having a vent outlet is connected to the... | 02/04/2003 |
| 6224651 | Process from separation of a gas mixture by pressure swing adsorption and plant for its implementation A process for separation of a gas mixture by pressure swing adsorption, in which a pressure swing cycle comprising a sequence of steps which define adsorption, decompression/regeneration and pressure rise phases is employed for the or each adsorber. The c... | 05/01/2001 |
| 6152163 | Switching valve for multi-chamber adsorbent air and gas fractionation system A unique switching valve for use with a multi-chamber adsorbent air and gas fractionation system for controlling the flow of fluid which comprises a valve housing including an inlet port, two outlet ports and an exhaust port and first valve and second val... | 11/28/2000 |
| 6077330 | Air drying device for a pneumatic system Device and method for the regeneration of a drying agent in compressed air system. The wetting degree of the drying agent is estimated and recorded by a control unit. The control unit ensures that the drying agent is dehumidified as soon as the wetting de... | 06/20/2000 |
| 5871564 | Pressure swing adsorption apparatus A pressure swing adsorption apparatus to vary selectively the concentration of at least one constituent of a gaseous mixture by sending a gaseous mixture into an adsorber to generate a particular product gas while delivering to another adsorber both a pre... | 02/16/1999 |
| 5620504 | Pressure swing adsorption apparatus valve activation A pressure swing adsorption apparatus (10) is provided with actuator air via a reservoir (40) which draws its supply either from one or more of the process vessels (12) after it has been dried thereby or directly from the system compressor (32). Controls ... | 04/15/1997 |
| 5538540 | Separation of solutes in gaseous solvents An apparatus capable of being used for the separation of solutes dissolved in a gaseous solvent is described. In one aspect, the apparatus includes a bed of sorbent in a container, a device which allows the gaseous solvent to pass through the bed of sorbe... | 07/23/1996 |
| 5474595 | Capacity control system for pressure swing adsorption apparatus and associated method A pressure swing adsorption apparatus including a compressor for pumping a flow of a gaseous mixture through an adsorption medium utilizes a capacity control system by which the operating capacity of the compressor can be preselected. The capacity control... | 12/12/1995 |
| 5458677 | Air dryer mechanism with flow regulated purge pressure An air drying mechanism for a compressed air braking system includes a housing containing desiccant material, and a purge volume which stores air for backflowing through the desiccant to purge the latter of its moisture content. A flow regulating control ... | 10/17/1995 |
| 5458676 | Pressure differential control valve for compressed air system A compressed air system includes an air dryer which dries compressed air before the compressed air is communicated to a reservoir. The air dryer includes a desiccant which is purged by using air stored in the reservoir. A pressure reference purge control ... | 10/17/1995 |
| 5443623 | Sorbing apparatus with guard bed The disclosure describes a sorbing apparatus for removing one or more undesirable components from an influent gas. The sorbing apparatus comprises at least one chamber having first and second ports and defining a gas flow path between the first and second... | 08/22/1995 |
| 5288311 | Device of supplying a concentrated CO2 gas in a carbonate spring bath system A carbonate spring bath system includes a supplying device of a CO2 gas, a dissolving device of the CO2 gas into a bath water, and a bathtub. The supplying device of the CO2 gas comprises a combustor for obtaining a combus... | 02/22/1994 |
| 5256174 | Gas separator system A pressure-swing adsorption type gas separator system includes two adsorption vessels and a switching valve for placing each of the adsorption vessels alternately in communication with a raw gas source and an exhaust gas line so that a pressurized adsorpt... | 10/26/1993 |
| 4965989 | In-line molecular sieve bed conversion kit This invention relates to a method and apparatus for providing an in-line molecular sieve conversion kit for generating oxygen from the atmosphere which includes an elongated tube filled with separating material, pressurized air from the atmosphere introd... | 10/30/1990 |
| 4844059 | Method and apparatus for enriching respiratory gas with oxygen and delivering it to a patient An apparatus for enriching respiratory gas with oxygen, wherein the entire enriched respiratory gas can be taken from an absorber bed and the enrichment concentration is adjustable by action on the total flow through the adsorber and the portion of the to... | 07/04/1989 |
| 4822384 | Oxygen enriching apparatus with means for regulating oxygen concentration of oxygen enriched gas An apparatus for producing an oxygen enriched gas having a compressor for supplying air under pressure, a unit for producing a gas enriched with oxygen from the air supplied from the compressor, a gas storage tank for reserving the oxygen enriched gas pro... | 04/18/1989 |
| 4755196 | Air-drying apparatus An air-drying apparatus for use with compressed air-operated systems such as, for example, a vehicle suspension system, includes a housing having an inlet portion, a drying material portion, and an outlet portion. An activation piston is disposed within t... | 07/05/1988 |
| 4711765 | Sorption/desorption gas analysis apparatus A sorption/desorption gas analysis apparatus includes a sorption/desorption bed having a thin layer of sorption material fixed to an outside surface of a first and a second adjacent tapered bed element arranged in a mutually mating configuration. The bed ... | 12/08/1987 |
| 4698075 | Control system for fluid absorption systems and the like An absorption-type oxygen generating system is disclosed in which the nitrogen components of compressed air passing through an absorption bed is absorbed, leaving a relatively pure oxygen effluent. Regeneration of the bed is provided by depressurizing the... | 10/06/1987 |
| 4687573 | Sorbing apparatus The disclosure describes a sorbing apparatus including at least one chamber having first and second ports and defining a fluid flow path between the first and second ports. The chamber includes a bed of sorbent particles which are bound to one another by ... | 08/18/1987 |
| 4530705 | Cyclic gas separator A cyclic gas separator machine is described which can continuously separate a mixed gas into two or more differing and undiluted product gases differing as to the kinds of molecules present. Separation is accomplished by the action of a surface force mate... | 07/23/1985 |
| 4511377 | Apparatus for the production of oxygen A housing for a single bed, pressure swing adsorption oxygen concentration system. The device is modularized for ease of manufacture and service with particular emphasis on sound suppression.... | 04/16/1985 |
| 4502873 | Method and apparatus for concentrating oxygen The disclosure of this invention includes a pressure swing adsorption oxygen concentrator having a plurality of zeolitic molecular sieve beds. The pressure and air flow in each bed is alternately charged between pressurizing and air flow in one direction ... | 03/05/1985 |
| 4479815 | Pneumatic controller and alarm for adsorbent fractionaters, particularly dessicant dryers A pneumatic controller is provided for a two-bed adsorbent fractionator, particularly a heaterless dessicant dryer, having pneumatically controlled inlet and exhaust flow valves and, optionally, a repressurization valve. The flow valves are controlled by ... | 10/30/1984 |
