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7566358 |
Fuel storage tank pressure management system and method employing a carbon canister
A carbon canister to adsorb hydrocarbons from a hydrocarbon air mixture in a UST system to prevent fugitive emissions due to overpressurization. The carbon canister has an inlet port at one end...
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7449050 |
System, apparatus and method for concentrating chemical vapors
An apparatus for concentrating a vaporous substance, which comprises: a sorbent material capable of capturing a vaporous substance; a first housing in which the sorbent material is located, a...
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7393382 |
Temperature-based breakthrough detection and pressure swing adsorption systems and fuel processing systems including the same
Pressure swing adsorption (PSA) assemblies with temperature-based breakthrough detection systems, as well as to hydrogen-generation assemblies and/or fuel cell systems containing the same, and to...
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7393380 |
Method of guaranteeing at least one characteristic of a fluid used for producing food products
A method for guaranteeing at least one characteristic of a fluid used for producing food products. This method utilizes a system for piping and delivering the fluid, combined with means for...
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7326275 |
Method and apparatus for inferring hydrocarbon level in a scrubber
A flow-through carbon adsorption device is provided with leads for imposing an electric current and with a temperature sensor at the desorption flow exit. The temperature sensor and electric...
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7115152 |
Four bed regenerable filter system
A regenerable filter system includes a flow path along which a stream of fluid flows between an inlet and an outlet. A first filtering unit is located in the flow path. The first filter unit...
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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...
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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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6929678 |
Purge and trap concentrator with improved drying
A purge and trap concentrator and a method for drying a stream of sample gas in a gas analysis instrument. A dryer tube has an inlet that receives a stream of sample gas during a drying interval...
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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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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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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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6736883 |
Particulate separation system for mercury analysis
A particulate separation system for accurate measurement of vapor-phase mercury in a flue gas stream uses an inertial gas sampling filter in which the skin temperature of the filter element is...
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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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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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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...
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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...
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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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6571489 |
Method and device at a single chamber air drier
For a single chamber air drier in a compressed air system on a vehicle the volume of dry regeneration air required to regenerate a desiccant in the air drier has to be determined. This can be...
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6540819 |
Gas cabinet assembly comprising sorbent-based gas storage and delivery system
A gas supply system including a gas cabinet defining an enclosure including therein a gas dispensing manifold and one or more adsorbent-based gas storage and dispensing vessels mounted in the...
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6527835 |
Chemical preconcentrator with integral thermal flow sensor
A chemical preconcentrator with integral thermal flow sensor can be used to accurately measure fluid flow rate in a microanalytical system. The thermal flow sensor can be operated in either...
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6517686 |
Apparatus for purification of electronic specialty gases by vapor phase transfilling
A system and method for purifying liquefied corrosive gases of metallic impurities is described. The principle for this purification method relies on vapor-phase transfilling the vapor phase from a...
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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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6402809 |
Management of an air purification system with thermal regeneration
A process and a system for purifying gas, such as air, before cryogenic distillation, in which at least one energy parameter, chosen from the flow rate of the regeneration gas entering and/or...
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6398846 |
Semiconductor manufacturing system with getter safety device
A semiconductor manufacturing system includes a getter-based gas purifier coupled in flow communication with a gas distribution network for a semiconductor fabrication facility. The gas...
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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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6372026 |
Apparatus for producing oxygen enhanced gas from air
A fractionator produces an oxygen enhanced gas for use in oxygen inhalation therapy. The fractionator includes an air source for supplying air, and a plurality of columns for containing an...
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6372018 |
VOC removal or destruction system
A VOC removal or destruction system incorporates a regenerator/reactivator having a cylindrical ceramic tube for receiving contaminated adsorbent activated carbon. Electrodes are provided in the...
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6355091 |
Ventilating dehumidifying system using a wheel for both heat recovery and dehumidification
A ventilation and dehumidification system for ventilating fresh air to a conditioned space. The system is comprised of a unitary heat transfer desiccant wheel for dehumidifying incoming air by...
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6277246 |
Purification of electronic specialty gases by vapor phase transfilling
A system and method for purifying liquefied corrosive gases of metallic impurities is described. The principle for this purification method relies on vapor-phase transfilling the vapor phase from a...
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6168645 |
Safety system for gas purifier
A gas purification system includes a gas purification unit and one or more safety devices. The gas purification unit includes an enclosure containing a purification material that exhibits an...
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6068679 |
Process of and a device for producing a gas, containing at least one component, from a gas mixture
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6063169 |
Control means for molecular sieve on-board oxygen generator
A control device for molecular sieve on-board oxygen generating systems measures both temperature and pressure of the inlet air of an oxygen generating system. An electronic control unit applies...
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6042634 |
Moisture extractor system for gas sampling
A gas sampling apparatus includes a probe tube having a tip positionable in a stream of products of combustion and a sample dryer tube connected in fluid communication with an end of the probe tube...
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6030435 |
Regulation of a PSA process
A PSA process for the separation of a gas flow containing essentially oxygen and nitrogen by preferential adsorption of the nitrogen, at a high adsorption pressure, on at least one bed of adsorbent...
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5989313 |
Method for operation of an air prepurifier which takes into account inlet air conditions
A pressure swing adsorber (PSA) air prepurifier includes at least a first adsorber and a second adsorber and a controller for controlling air feed to the first adsorber and the second adsorber. The...
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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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5938816 |
Process for purifying gases loaded in particular with chemical residues
A process for the purification of gases loaded in particular with chemical residues, in particular of the exhaust air from printing equipment, in which process the gas to be purified is drawn off...
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5917135 |
Gas concentration sensor and control for oxygen concentrator utilizing gas concentration sensor
An acoustic oxygen sensor is provided which can be used in the output lines leading from the sieve beds. This sensor can be used in communication with a microprocessor to control the production and...
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5882384 |
Gas source and dispensing system with in situ monitoring of pressure and temperature
A fluid storage and dispensing system including a fluid storage and dispensing vessel containing a physical adsorbent material having sorptive affinity for the fluid to be stored in the vessel and...
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5837027 |
Manufacturing process for gas source and dispensing systems
A fill system and methodology for the manufacture of fluid storage and dispensing vessels containing sorbent material for holding a sorbable fluid, for on-demand dispensing of the fluid in the use...
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5807422 |
Divided radial and spherical desiccant bed adsorption units
A pre-compression dehydration system optimizes the gas flow parameters which are essential to the performance of a radial or spherical desiccant dryer. When used in conjunction with a low pressure...
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5725639 |
Device for drying air for motor vehicles
An air dehumidifier or drier, particularly for a motor vehicle, has an air guiding housing defining three parallel air flow paths, which are defined by a common main air chamber separating two...
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5688305 |
Method and device for drying of moist gases
A process and an apparatus are described for drying moist gas, in particular air, in which the moisture is removed from the gas by a desiccant and the desiccant is freed of the absorbed moisture by...
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5669961 |
Method for the purification of noble gases, nitrogen and hydrogen
A method and apparatus for the purification and collection of hydrogen isotopes in a flowing inert gaseous mixture containing impurities, wherein metal alloy getters having the capability of...
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5660605 |
Window fan
A window fan incorporating a filter. The fan has a low, flat profile for fitting in a window while occupying limited viewing area of the window. The fan includes laterally projecting extensions for...
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5632802 |
Apparatus and method of regenerating adsorbers for drying air
An improved method and apparatus for removing moisture from compressed air through a pre-compression adsorptive desiccant bed, heat reactivated and regenerative air drying and filtration system....
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5624477 |
Pressure swing adsorption plants
In a pressure swing adsorption plant for the production of oxygen enriched gas a pressure vessel contains a first bed of molecular sieve adsorbent located adjacent an outlet 4 of the vessel which...
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5571477 |
Equipment for sampling and work-up for analysis of PAH and other organic compounds, and hydrogen fluoride and sulphur oxides
Equipment samples and processes for analysis PAH and other organic compounds, as well as hydrogen fluoride and sulphur oxides in air and in gas in production equipment. The equipment comprises a...
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5542965 |
Process and installation for removing solvent vapor from exhaust air
In a process and installation for removing solvent vapor from exhaust air sucked from a working space, the air is fed to at least two parallel activated carbon adsorbers. Each adsorber can be...
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