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| Number | Title | Issue Date |
| 7824479 | Apparatus and method for air sampling An apparatus for sampling air in an aircraft cabin comprises: a sensor 2 for detecting air contaminants, a processor 4, a data logger 6, means 8 for detecting when the apparatus is airborne, a control unit 10, a manual trigger 1... | 11/02/2010 |
| 7704304 | Process and apparatus for generating and delivering an enriched gas fraction An improved sieve bed design to manage breakthrough and the mass transfer zone by way of volumetric division. An empty space in the product end is separated from adsorbent-filled sieve space in the feed end by a mid-diffuser plate. The ratio of the empty product end... | 04/27/2010 |
| 7402193 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 07/22/2008 |
| 7350521 | Simplified dual mode medical oxygen concentrator Oxygen concentrator system having a portable oxygen generator unit adapted to generate a non-humidified oxygen-rich gas and a stationary base unit adapted to generate a humidified oxygen-rich gas, wherein the portable oxygen generator unit and the stationary base ar... | 04/01/2008 |
| 7329304 | Portable oxygen concentrator A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the firs... | 02/12/2008 |
| 7316726 | Evaporation valve A pneumatic circuit and other components are provided for the operation of a medical device. The pneumatic circuit provides controlled pressurized air to a medical device for use during a medical procedure. ... | 01/08/2008 |
| 7308808 | Apparatus and method for article cleaning The present invention provides an article cleaning apparatus comprising an air management mechanism, a cleaning basket assembly, a fluid regeneration device, a working fluid device, a clean fluid device, and a controller. The working fluid device is coupled to the f... | 12/18/2007 |
| 7273051 | Dual mode medical oxygen concentrator Oxygen generation system having a portable oxygen generator unit including a portable air separation device for the generation of an oxygen-rich gas, a primary gas pump including means to supply air to the portable air separation device, a primary motor to drive the... | 09/25/2007 |
| 7255727 | Method for treating at least one feed gas mixture by pressure swing adsorption The invention concerns a treatment method which consists in using a pressure swing adsorption treatment unit (16) and causing said treatment unit (16) to follow a nominal operating cycle, based on nominal operating conditions and in order to ensure min... | 08/14/2007 |
| 7179320 | Air recharge system dryer and methods therefor A method to desorb water from a desiccant of an air recharge system comprises the steps of a) filling a purge reservoir using an air compressor and a desiccant dryer to produce discharge air, b) stopping the air compressor; c) back purging the desiccant, and d) vent... | 02/20/2007 |
| 7156900 | Adsorber station and the use thereof The invention relates to an adsorber station with a first adsorber (A) and a second adsorber (B). A first closed loop pipeline (1) is connected to the adsorbers (A, B) and is provided with product gas feed line valves (4A, 4B) and regeneration g... | 01/02/2007 |
| 7135059 | 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 ... | 11/14/2006 |
| 7118614 | Air dryer An air dryer comprises a base member, a main cartridge and an intermediate cartridge. The air dryer is capable of drying and possibly filtering and/or cleaning air passing there through. The intermediate cartridge, capable of drying and possibly filtering and/or cle... | 10/10/2006 |
| 7108736 | Method of installing a molecular sieve bed gas-enriching system A method of installing a molecular sieve bed gas enrichment system in a vehicle such as an aircraft. A system controller, a product gas distribution conduit, a high pressure gas supply conduit which extends from a high pressure gas source, and a plurality of molecul... | 09/19/2006 |
| 7103991 | Regeneration of air dryer A method of initiating a regeneration event of an air braking system of a vehicle includes the steps of calculating the forward air volume in successive time intervals, tallying the total forward air volume and initiating a regeneration event at a saturation thresho... | 09/12/2006 |
| 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 |
| 7063517 | Valve apparatus and pneumatically driven diaphragm pump incorporating same A valve apparatus and pneumatically driven diaphragm pump incorporating same having a valve body having a longitudinal axis and an actuator having an axis with a first end and a second end. The first and second ends have first and second diaphragms, respectively, di... | 06/20/2006 |
| 7056953 | (E)-styryl sulfone anticancer agents (E)-styryl benzylsulfones of formula I are useful as anticancer agents: wherein R1, R2, R3, and R4 are as defined herein. ... | 06/06/2006 |
| 7056935 | Rotamase enzyme activity inhibitors This invention relates to methods of using neurotrophic compounds having an affinity for FKBP-type immunophilins to stimulate or promote neuronal growth or regeneration and to prevent neuronal degeneration. ... | 06/06/2006 |
| 7033548 | System and process for removal of pollutants from a gas stream System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorbent in the ... | 04/25/2006 |
| 7011693 | Control of a hydrogen purifying pressure swing adsorption unit in fuel processor module for hydrogen generation A PSA unit for purifying hydrogen in a fuel processor system. The PSA unit employs rotary valves that cycle the pressurization of vessels, including an adsorbent, between a high pressure state and a low pressure state. The purified hydrogen is released from the vess... | 03/14/2006 |
| 6974565 | System and process for removal of pollutants from a gas stream System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorbent in the ... | 12/13/2005 |
| 6951581 | Spin-on desiccant cartridge with integral oil removal filter An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing... | 10/04/2005 |
| 6949133 | Portable oxygen concentrator A compact and highly portable combination pressure swing adsorption apparatus and product gas conservation device for medical use, to produce efficiently a gas with a high concentration of oxygen and to deliver the oxygen concentrated gas to a user at selectable tim... | 09/27/2005 |
| 6929683 | Method and apparatus for pressure swing adsorption A pressure swing adsorption system including a pressure vessel having an opening and a valve manifold including a body having a first cavity fluidly connected to the opening. The body further includes a passage and a channel, such that the passage connects the chann... | 08/16/2005 |
| 6918953 | Modular pressure swing adsorption process and apparatus A pressure swing adsorption (PSA) system including a first group of PSA modules having a plurality of first PSA modules, and a second group of PSA modules having a plurality of second PSA modules. The system includes a feed gas manifold, a product manifold, and a wa... | 07/19/2005 |
| 6908503 | Reduced noise oxygen concentrator A pressure swing adsorption apparatus for producing a gas mixture with a higher concentration of a particular gas such as oxygen from ambient air, in which the noisier components of the apparatus are contained in an internal removable module that is separated by sou... | 06/21/2005 |
| 6835231 | Adsorption process and apparatus for nitrogen production and drink dispensing device making use of the apparatus In a process for the production of nitrogen by adsorption on carbons or similar molecular sieves contained in a cylinder (2), the amount of Q1 of nitrogen obtainable from the cylinder at the required purity at the cylinder pressure Pp is calculated; co... | 12/28/2004 |
| 6767390 | Energy efficient desiccant dryer regeneration system A method to control the performance of desiccant dryers is disclosed that senses multiple variables and optimizes the regeneration cycle to deliver the gas at the desired dew point. The length of the stripping step is reduced or eliminated depending on the desired s... | 07/27/2004 |
| 6743277 | Service reservoir purge of air dryers in pump-off mode A cargo or bulk product off-load system includes a compressor (10) that pressurizes air. The air is dried by a dryer (12, 14) and routed to a supply tank (16). From the supply tank, the air is either used to pressurize service reservoirs (24,... | 06/01/2004 |
| 6712876 | Oxygen concentrator system with altitude compensation An oxygen concentrator system with altitude compensation includes at least one oxygen concentrator sub-system and a plenum subsystem. The at least one oxygen concentrator sub-system produces oxygen enriched product which is outputted to both the oxygen concentrator ... | 03/30/2004 |
| 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 |
| 6689196 | Fuel vapor control apparatus A fuel adsorption layer formed in a canister is partitioned into an upper adsorption layer and a lower adsorption layer by a partition plate in which a heater is embedded. The relation between a heating value of the heater and thickness X of the upper and... | 02/10/2004 |
| 6680028 | Portable air purifier apparatus and system A portable air purifier system and apparatus which includes a multi-element filter pack that is replaceable as a single unit, thus facilitating health safety of maintenance personnel. By serially disposing filter elements in order of descending sizes of p... | 01/20/2004 |
| 6579507 | System and process for removal of pollutants from a gas stream System for removal of targeted pollutants, such as oxides of sulfur, oxides of nitrogen, mercury compounds and ash, from combustion and other industrial process gases and processes utilizing the system. Oxides of manganese are utilized as the primary sorb... | 06/17/2003 |
| 6547851 | Miniaturized wearable oxygen concentrator A component gas concentrator includes an air compressor, an air-tight first container containing a molecular sieve bed, the first container in fluid communication with the compressor through a first gas conduit, and an air-tight second container in fluid ... | 04/15/2003 |
| 6506234 | Pressure swing adsorption gas separation method, using adsorbents with high intrinsic diffusivity and low pressure ratios A gas separation process incorporating the invention combines use of an adsorbent having high intrinsic diffusivity with a low pressure ratio PSA cycle. Further enhancements to the process are derived from the use of fast cycles, shallow beds and small pa... | 01/14/2003 |
| 6454834 | Regenerable air cleaning device A regenerable air cleaning device is disclosed which comprises a filter holder supporting a regenerable filter that includes activated carbon fibers (ACF) and a control system that is adapted to determine when to regenerate the regenerable filter. The dev... | 09/24/2002 |
| 6409807 | Linear gas valve cycle control, shut-off-valve and self test The present invention relates to detecting the state of a slide block positioned in a linear valve and using the position of the slide block to predict the health of a linear valve and provide information to a controller/monitor. An operator is provided w... | 06/25/2002 |
