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7479176 |
Sequential adsorption desiccant dryer system
A method and an apparatus for controlling airflow in a desiccant drying system having a plurality of desiccant beds, in which each desiccant bed is located in a chamber, and multi-position valves...
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7445660 |
Method for operating gas generators in tandem
A gas generating system (S) has a plurality of product gas generating modules ( 18 ) each of which comprises a plurality of molecular sieve beds (bed 1 , bed 2 ) generating a product gas acting...
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7396390 |
Oxygen enrichment apparatus
An oxygen enrichment apparatus includes an oxygen enriching unit for generating oxygen-enriched air and a discharge unit for discharging the oxygen-enriched air transferred from the suction unit....
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7332015 |
Automatic dehydrating breather apparatus and method
A dehydrator breather is provided that includes automatic purging of accumulated moisture by detecting absorbed moisture in the breather, and closing an intake air channel, while opening an exit...
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7156903 |
Sound enclosure for portable oxygen concentrators
A portable pressure swing adsorption apparatus and conservation device for medical use, and a sound enclosure for the apparatus having two isolating sections to enclose the apparatus, the enclosure...
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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...
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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...
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7101414 |
Rotary bed sorption system including at least one recycled isolation loop, and methods of designing and operating such a system
A method of reducing the sorbate concentration of a process fluid stream using a sorption bed system includes the following steps. A mass of a sorbent material is rotated so that, in a cycle of...
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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...
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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...
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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...
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6960246 |
Oxygen concentrating apparatus
An apparatus for generating an oxygen enhanced gas by removing nitrogen gas from air, includes a compressor, absorption columns for removing the nitrogen gas from the pressurized air supplied from...
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6923849 |
Hydrocarbon adsorbent state determining apparatus
A hydrocarbon adsorbent state determining apparatus is provided for compensating the ability of a hydrocarbon adsorbent to adsorb moisture for fluctuations due to a change in the flow velocity of...
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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...
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6866701 |
Oxygen enrichment of indoor human environments
This invention provides systems and methods of supplying oxygen-enriched air to an enclosed space or compartment. The systems and methods may distill oxygen from ambient air by a molecular sieve...
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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 Q 1 of nitrogen obtainable from the cylinder at the...
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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...
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6821316 |
Method for treating a gas by adsorption and corresponding installation
A method comprising two adsorbers which follow each a phase-shifted cycle successively consisting in an adsorption phase, at high pressure of the cycle, and a regeneration phase, ending in...
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6811590 |
Gas concentrating method and apparatus using pressure swing adsorption
A gas concentrating method and apparatus is provided in which equalization is accomplished below two sieve beds, to thereby save compression energy, to reduce exit noise, and to obtain a gas whose...
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6767391 |
Air filter
An air filter includes a honeycomb rotor which carries a porous adsorbent and can be rotated in a circumferential direction, a drive means for rotating the honeycomb rotor, a first partition member...
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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...
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6733568 |
Method of controlling a plant for processing a gas by adsorption and corresponding processing plant
A method of controlling a plant for processing a gas by adsorption, with N adsorbers R1 to R0 and variable N phase times. The method utilizes a mobile parameter for identifying the operating state...
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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...
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6712886 |
Air purification device for automobile with oxygen-supplying function
An air purification device has an oxygen-supplying function, in which air in an automobile is sucked by a vacuum pump and purified by a dust collector or an adsorbent such as activated carbon and...
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6709496 |
Air demoisturizer for oil-insulated transformers, chokes and tap changers
An air demoisturizer for an oil expansion vessel of an electrical power unit like an oil-filled transformer, tap changer or choke, has a heating element in the body of absorbent and utilizes a...
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6709499 |
Air-routing household appliance with a washable filter
An air-routing household appliance includes an improved removable and washable filter in that the filter is of a flexible fiber material and is finished such that it can bind and/or decompose...
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6641644 |
Pressure swing adsorption gas separation method and apparatus
The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a...
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6599347 |
Process for treating a feed gas
A method of operating a thermal swing adsorption process by determining a parameter relating to the water content of a feed gas, selecting process conditions for regeneration of the adsorbent in...
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6572682 |
Self-cleaning filter system using direct electrically heated sintered metal fiber filter media
A Diesel particulate filter cartridge system for filtering particulate matter and nitrogen oxide from a flow of air containing particular matter includes a filter support plate with a plurality of...
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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...
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6478850 |
Miniaturized wearable oxygen concentrator
A component gas concentrator includes an air compressor/vacuum pump, an air-tight first container containing a molecular sieve bed, the first container in fluid communication with the...
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6467185 |
Potted timer and circuit board assembly for use in a regenerative desiccant air dryer
A potted timer and circuit board assembly for use in a regenerative desiccant air dryer. The potted timer and circuit board assembly comprise a support member of a predetermined size and shape...
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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...
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6413484 |
Catalytic oxidation of vapor emissions discharged during vehicle refueling
A combustion system includes a catalytic oxidizer for oxidizing a mixture of air and fuel vapor. The amount of air provided for mixing with the fuel vapors is determined in accordance with the...
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6391098 |
Air braking system component
An air dryer for a vehicle air braking system comprises a container having first, second and third compartments, the first compartment having an upstream inlet for connection to a source of air...
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6379435 |
Adsorbing device, method of deodorizing therewith, and method of supplying high concentration oxygen
An adsorbing device comprising a main body having an intake port and an exhaust port and accommodating therein an adsorbing composition capable of adsorbing a gaseous specific substance;...
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6375722 |
Heat of compression dryer
A system for drying a gas includes a source of gas, a compressor connected to the source, and a heat of compression dryer connected to the compressor. The dryer includes a first tower and a second...
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6284020 |
Method of maintaining cleanliness of substrates and box for accommodating substrates
A method of maintaining cleanliness of substrates including a first step for accommodating at least a piece of substrate having a gaseous impurity-trapping filter arranged close thereto in a...
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6245127 |
Pressure swing adsorption process and apparatus
A low pressure swing adsorption process and apparatus for the recovery of carbon dioxide from multi-component gas mixtures, utilizing the simultaneous purge and evacuation of opposite ends of the...
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6176897 |
High frequency pressure swing adsorption
Pressure swing adsorption separation of a feed gas mixture, to obtain a purified product gas of the less strongly adsorbed fraction of the feed gas mixture, is performed in a plurality of...
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6146447 |
Oxygen generation process and system using single adsorber and single blower
Process and single-bed pressure swing adsorption system for separating gas mixtures, especially air. The process includes a simultaneous countercurrent product purge and partial product...
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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...
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6050651 |
Vent valve and method of operation thereof
Air braking system of vehicles usually have a piston compressor (C) and a desiccant (D) for drying the compressor output air. The desiccant is periodically regenerated by downstream air from e.g. a...
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5980615 |
Compact air dryer
A compact desiccant-operated air dryer includes air directing housings, each housing including a separate desiccant bed. Each housing includes an associated desiccant bed to provide...
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5980608 |
Throughflow gas storage and dispensing system
An apparatus for storage and dispensing of a gas, comprising a gas storage and dispensing vessel holding a physical sorbent medium and gas adsorbed on the physical sorbent medium, wherein a carrier...
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5961698 |
Twin tower air dryer
A twin tower gas drying system for cleaning and drying a stream of unpurified pressurized gas received from a source thereof for use of a pneumatic system. The drying system includes a manifold...
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5902381 |
Dehydrating breather apparatus
A maintenance free dehydrating breather apparatus for equipment such as oil cooled transformers and the like includes a cap and vessel enclosing a container for desiccant. A heater is mounted...
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5876488 |
Regenerable solid amine sorbent
The invention provides a regenerable supported amine sorbent having an amine concentration of from about 35 wt. % to about 75 wt. %. The balance of the sorbent is a porous support which provides...
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5827358 |
Rapid cycle pressure swing adsorption oxygen concentration method and apparatus
A rapid pressure swing adsorption oxygen concentrator is provided having a plurality of at least three sieve beds cycled in sequence such that each is pressurized during one segment of a cycle and...
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5766310 |
Single stage secondary high purity oxygen concentrator
A single stage secondary oxygen concentrator for receiving a gas mixture from a first stage oxygen concentrator and a method of use therefor is disclosed. The concentrator includes a first carbon...
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