Abstract: A reversed pressure relief valve that is used in connection with a computer hard disk drive so as to vent pressurized gases contained within the disk drive while not permitting debris to enter the drive mechanism or the valve. More specifically, the present invention is a reversed direction valve which includes at least one passageway defined by at least a lifter ring, a dry strap, a pressure sensitive adhesive (“PSA”)/body film and a filter media.

Abstract: The invention relates to a method for the hydrothermal production of a microporous membrane. According to said method, a colloidal solution comprising zeolite frameworks with 4-ring, 6-ring, and/or 8-ring pores which are provided as crystallites whose size ranges from 2 to 25 nm is applied to a porous substrate with the aid of a wet application technique. The applied layer is contacted with a hydrothermal liquid, and a nanocrystalline, microporous zeolite layer having an average pore diameter of 0.2 to 0.45 nm is synthesized at temperatures ranging between 50 and 250° C. and at an autogenous pressure. Such a microporous membrane comprising a porous substrate and at least one nanocrystalline zeolite layer that is disposed thereupon and has an average pore diameter of 0.2 to 0.45 nm is advantageously suitable for use as a separating device for gas phase separation, making it possible to separate particularly N2O2, N2/CO2, H2/CO2, or CO2/CH4 gas mixtures.

Abstract: A porous filter medium forms a filter or liner for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a foam, nonwoven or collection of particles and has fine pore size and a butane working capacity (W/W %) of 4.0 percent or higher.

Abstract: A filter includes a metallocene for removing oxygen from a gas stream. The filter further includes a support for the metallocene.

Abstract: Disclosed is a method and a filter unit for depleting or enriching a liquid or gas with substance(s) comprising i) providing a filter unit comprising at least one convective layer and at least one receiving layer adjacent one another, ii) passing the liquid or gas through the filter so that the main direction of flow is along the layers and the main flow of liquid gas is in the convective layer, allowing the substance(s) to: a) be transferred from a convective layer to a receiving layer, and b) be retained or otherwise modified or transferred within a receiving layer, or c) be provided by the receiving layer, and d) be transferred from the receiving layer to the fluid in the convective layer.

Abstract: Described is an adsorbing agent for dust-collecting filters, especially for adsorbing odors. The adsorbing agent may include fibers, flakes and/or granulate as a supporting material onto which a powdery adsorption material is applied superficially.

Abstract: The invention relates to an adsorption filter material (1) that provides protection against chemical toxins, chemical weapons and pollutants, with a preferably multi-layer composite construction (2). The layer construction (2) includes at least one planar support layer (3) with two opposing sides (3?, 3?) and an adsorption layer (4), provided on the support layer (3) made from a material which adsorbs chemical toxins, the surface of at least one of the both sides (3? and/or 3?) of the support layer (3) being modified by plasma treatment. The surface properties, in particular the surface finish and the surface reactivity can be adjusted and optimised to match the application by means of the plasma treatment.

Abstract: Hard disk drive housing including at least one inlet, at least one outlet. The inlet is situated near spindle and above disk in hard disk drive. The outlet is situated near outside diameter of disk. When disk rotates, air pressure near the inlet is lower than air pressure near the outlet, causing a flow of air through the hard disk drive from the inlet to the outlet, tending to cool the hard disk drive. The inlet may include inlet filter. Outlet may include outlet filter. Manufacturing the housing by providing the inlet and the outlet. The disk cover as manufacturing product. Operating the hard disk drive containing the housing. The hard disk drive containing the housing, and manufacturing the hard disk drive. The hard disk drive as manufacturing product. A system containing at least one of the hard disk drives. Manufacturing the system, and the system as a manufacturing product.

Abstract: Disclosed is a humidity control device which is provided with an adsorptive element (81, 82) having a humidity control passageway (85) capable of adsorption of moisture from a first air stream and of release of moisture to a second air stream, and which provides an air stream, the humidity of which is conditioned in the adsorptive element (81, 82), to an indoor space. In the humidity control device, the adsorptive element (81, 82) is provided with an auxiliary passageway (86) through which a heating fluid flows when the adsorptive element (81, 82) is regenerated by releasing moisture to a second air stream from the humidity control passageway (85). As a result, during regeneration of the adsorptive element (81, 82) by releasing moisture to a second air stream, the amount of release moisture is increased, thereby enhancing the device performance.

Abstract: Embodiments of the invention relate to a fluid enclosure including a structural filler and an outer enclosure wall conformably coupled to the structural filler. Embodiments of the present invention further relate to a method of manufacturing a fluid enclosure. The method includes conformably coupling an outer enclosure wall to a structural filler.

Abstract: Methods and apparatus for the storage of acetylene include providing an acetylene storage device which has an interior volume. A carbonaceous adsorbent is disposed in the interior volume of the storage device, and acetylene is introduced into the storage device to be reversibly adsorbed by the carbonaceous adsorbent. A pressure of less than 2 bar is maintained in the storage device.

Abstract: The present invention relates to adsorption vapor recovery systems for recovering vaporized gasoline, distillates, benzene, solvents and the like from vapor mixtures, including at least one adsorber containing honeycomb adsorbents.

Abstract: Microbicidal air filter for use with an air passageway, which includes an immobilization network including fibers having substantially embodied therein an amount of at least one antimicrobial agent sufficient to substantially immobilize, retain and kill microbes suspended in a volume of air moving through the air passageway. The immobilization network is substantially permeable to air. A microbicidal facemask and a microbicidal air filter used in an air circulation system using the immobilization network are disclosed.

Abstract: Inhalation of low levels of nitric oxide can rapidly and safely decrease pulmonary hypertension in mammals. A nitric oxide delivery system that converts nitrogen dioxide to nitric oxide employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid.

Abstract: A system and method for capturing carbon dioxide (CO2) from a process gas stream is provided. An absorbent coated on a substrate (300) is subjected to a gas stream containing carbon dioxide (CO2) to remove at least a portion of the CO2 contained in the gas stream.

Abstract: Activated carbon in which the residual amount of hydrocarbon (HC) can be reduced and a canister using such activated carbon are provided. Activated carbon in which the residual amount of butane is determined to be 1.2 g/100 ml or less after butane is adsorbed thereon and desorbed therefrom in accordance with the determination of BWC (ASTM D-5228) and a canister using such activated carbon as an adsorbent are provided.

Abstract: Multi-Element Structured Arrays (MESAs) present an effective approach to utilizing high pressure drop media that previously were cost prohibitive for use in a traditional filter element. The operational velocity is significantly slowed by the incorporation of numerous elements; thus, eliminating the Darcian flow resistances of the media. The MESAs are readily fitted with two or more replaceable “filter elements” that are able to employ commercially available media, microfibrous entrapped catalyst/sorbent media, unique multilayers and more.

Abstract: The present invention relates to a gas pressure container having a minimum volume of 1 m3 and a prescribed maximum filling pressure for the uptake, storage and delivery of a fuel gas which is gaseous under storage conditions and is suitable for powering a vehicle by combustion of the fuel gas, wherein the gas pressure vessel has a filter through which the fuel gas can flow at least during uptake or during delivery, with the filter being suitable for removing possible impurities in the fuel gas from the stream and the impurities being able to reduce the storage capacity for the fuel gas of an adsorbent used for the storage of the fuel gas. The invention further relates to the use of such a gas pressure container for filling a further gas pressure container which is present in or on a vehicle and comprises an adsorbent for the storage of the fuel gas.

Abstract: A method and a device for discharging air current from a cooking area. The method and the device guide the air current through a sorption agent for absorbing water or water vapor contained in the air current. The sorption agent is regenerated preferably when the air current is not being discharged from the cooking area.

Abstract: A deoxidizer for absorbing and removing oxygen from the surrounding atmosphere, comprising oxygen-deficient cerium oxide having a powder form with a specific surface area of 0.6 m2/g or less or the form of a formed body with a specific surface area of 3.0 m2/g or less. The deoxidizer reacts with oxygen even in a moisture-free atmosphere, does not trigger a metal detector nor heat up when microwaved in a microwave oven, and is prevented from abruptly reacting with oxygen and igniting even when brought into direct exposure to the air. The deoxidizer is therefore suited for oxygen removal, for example, inside food packages.

Abstract: Articles are provided which mask the appearance of stains. The articles utilize a metalized substrate formed from a substrate and a discontinuous metal layer deposited thereon, the metalized substrate having a gloss of at least about 2 gloss units when measured at an angle of illumination of 20°.

Abstract: A hydrocarbon adsorption unit for recovery of volatile hydrocarbons which emanate from several sources and which would otherwise be released into the atmosphere through the air cleaner of an automobile engine when the engine is shut off. The unit is positioned in the air intake system such that all air flowing through the engine passes through the unit. The unit comprises a housing having an air inlet and an air outlet. The housing contains a substrate and a volatile hydrocarbon adsorber material coated on the surface of the substrate. The adsorber material may be silica gel, a molecular sieve and/or activated carbon. The material further contains a binder that will cause the material to adhere to the surface of the substrate.

Abstract: A carbon dioxide adsorption element rapidly adsorbs a large amount of carbon dioxide, and regenerates amine groups for carbon dioxide adsorption rapidly and uniformly with high-temperature air. The carbon dioxide adsorption element 110 for adsorbing carbon dioxide in air comprises a foil-like or plate-like support member 111, a porous aluminum oxide film 112 covering the support member 111, and the amine groups 113 clinging to the inner surface of each pore 112a of the film 112 for carbon dioxide adsorption. The film 112 is formed by oxidation of aluminum or aluminum alloy. The depth direction of each pore 112a of the film is the thickness direction of the support member 111.

Abstract: A carbon dioxide-absorbing material that can greatly improve an absorption amount of carbon dioxide up to near the theoretical value, a method for producing the carbon dioxide-absorbing material, a method of absorbing carbon dioxide using the carbon dioxide-absorbing material, and an apparatus for absorbing carbon dioxide are provided. The carbon dioxide-absorbing-material of the present invention contains lithium titanate, the lithium titanate comprising 70 mol % or more of Li4TiO4 and 30 mol % or less of Li2TiO3. Furthermore, the carbon dioxide-absorbing material of the invention is obtained by the method for producing a carbon dioxide-absorbing material of the invention described below. That is, the absorbing material is obtained by the production method of the invention which produces the same by mixing given raw materials such that the atomic ratio between lithium and titanium is from 3.5 to 5.0, and subjecting the resulting mixture to heat treatment.

Abstract: A gas flow absorber comprises an absorption vessel, having a vessel wall defining a cylinder including an absorption material, the cylinder having a cylinder wall bearing, at the bottom thereof, in a circumferential slot formed on a support plate including a channel therethrough a gas mixture flow is conveyed, the channel having a channel hole passing through an enlarged portion of the support plate, the enlarged portion being coupled to a flat chamber substantially extending through the overall extension of the vessel bottom, the chamber being covered by a disc-like body made of a sintered material.

Abstract: Apparatus, process and article for treating a gas containing one or more of a chemical and/or biological contaminant. The process includes contacting the gas with an aggregate composition comprising an insoluble rare earth-containing compound to form a gas depleted of chemical and active biological contaminants. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. The composition comprises no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate has been sintered. A suitable insoluble cerium-containing compound can be derived from cerium carbonate. In one embodiment, the aggregate composition consists essentially of one or more cerium oxides, and optionally, a binder. Although intended for a variety of fluid treatment applications, such applications specifically include the treatment of breathing gases such as air that may contain chemical and/or biological contaminants.

Abstract: A gas-removing device serves to remove impurity gases from the air supplied to a fuel cell via an air supply system. The gas-removing device includes a porous material and an alternate adsorption membrane. The porous material has micropores formed therein in order to absorb impurity gas particles contained in the air. The alternate adsorption membrane is formed on the inner walls of the micropores of the porous material in order to further adsorb and retain at least one type of impurity gas particles from among the impurity gas particles absorbed by the porous material. The alternate adsorption membrane includes at least one positively charged layer and at least one negatively charged layer laid alternately to one another.

Abstract: A gas contaminant is filtered using fibers having internal cavities containing a chemically reactive oxidizing agent, an acid or base, a coordinating agent, a complexing agent, or a deliquescing agent. Where the contaminant is basic, the reagent is preferably an oxidizing agent. Where the contaminant is acidic, the reagent is preferably basic, and more preferably comprises a group 1 or group 2 metal cation. The reagent may also advantageously comprise a phosphate, chitosan, hypochlorite, borate, carbonate, hydroxide, or oxide. Where the contaminant is neutral, the reagent is preferably an oxidizing agent, complexing agent, coordinating agent, or deliquescing agent. The reagent is preferably impregnated into an adsorptive solid, including, for example, carbon powder, zeolite, aluminum oxide, or silica. The fibers are preferably multilobal, and most preferably either trilobal or quadrilobal. It is also preferred that the fibers contain a plurality of T shaped lobes.

Abstract: The present invention is directed to a seal configured to be placed over an opening in an electronic enclosure. In certain embodiments the seal covers a depression in the surface of the electronic enclosure, wherein the seal is configured to be adhesively secured along its perimeter to the surface of the electronic enclosure. An absorbent-containing filter element integral with the seal is configured to be placed within the depression in the surface of the electronic enclosure. A channel is configured to be in fluid communication through the seal, said channel further in fluid communication with the adsorbent-containing filter element.

Abstract: A jacket material into which a gas adsorbing device and core material are inserted is decompressed in a vacuum chamber, the opening is sealed, and then the jacket material is exposed to the atmosphere. In the atmospheric pressure, a pressure of about 1 atm which is equivalent to the pressure difference between the inside and outside is applied to the jacket material of the heat insulator. The jacket material is made of a plastic laminated film and is deformed by pressure. A protruding portion is plunged into a container to drill through holes, and a gas adsorbent in the container communicates with the inside of the jacket material. Thus, both during holding and in applying to the vacuum heat insulator, the gas adsorbent can be applied to the vacuum heat insulator without degradation, and the high degree of vacuum can be kept for a long time.

Abstract: The invention pertains to a filter element that includes a first flat layer and a second flat layer, wherein the layers are connected to one another such that a volume and an opening are formed, wherein the layers are spaced apart from one another via spacing devices arranged between the layers (1, 2), and wherein the spacing devices connect both layers to one another. With respect to the objective of disclosing a filter arrangement that can be easily manufactured and ensures a flawless operation, the invention proposes that such a filter element is characterized in that the spacing devices are regionally connected to one of the layers only. The invention also discloses an arrangement comprising a filter element and a frame.

Abstract: A microfibrous matrix with embedded supporting particulates/fibers and chemically reactive materials is provided as a filtration system for the removal of contaminants and other harmful agents from liquid and gaseous streams. Such materials may include chemically reactive materials as high surface area carbons, zeolites, silicas, aluminas, inorganic metal oxides, polymer resins, ZnO, ZnO/Carbon, Pt/?-Al2O3, PtCo/?-Al2O3, ZnO/SiO2 and various other catalysts, sorbents or reactants. The invention may be used to protect the intolerant anodes and cathodes of fuel cells from damaging H2S while simultaneously aiding the selective conversion of CO to CO2 in fuel streams predominated by hydrogen, to provide a highly efficient gas and/or liquid separation and purification methodology for gas masks, building filtration systems, and/or as polishing media located downstream of traditional packed bed filtration systems.

Abstract: A fuel adsorption sheet includes a sheet base. A fuel adsorbent and a reinforcing net are arranged in the sheet base. The reinforcing net is formed by a plurality of cords extending in at least three directions along a surface the sheet base. The fuel adsorption sheet is arranged in an air passage of an air cleaner. The sheet base includes a pair of covering sheets. The covering sheets have central portions for holding the fuel adsorption member and the reinforcing net and peripheral portions for holding only the reinforcing net. A fastening portion is defined in the peripheral portions of the sheet base when the covering sheets are bond together.

Abstract: The present invention provides an evaporated fuel gas adsorbent, an evaporated fuel gas trapping apparatus that uses the adsorbent, an activated carbon, and a process for producing the activated carbon. The evaporated fuel gas adsorbent is capable of improving adsorptivity and desorptivity by reliably preventing a temperature rise and a temperature fall caused by heat generated in response to the adsorption and desorption of evaporated fuel gas, is capable of achieving a size reduction of the device, and is capable of being easily produced. The activated carbon has high mechanical strength and high abrasive resistance, has many pores suitable to adsorb an organic solvent, especially, evaporated fuel gas, and has a high packing density. The activated-carbon producing process is industrially advantageous.

Abstract: A volatile substance filter comprises volatile substance adsorber material particles on plastics material support surfaces extending parallel to the direction of gas flow through the filter.

Abstract: Using zeolites as the active adsorbent, adsorbent laminates have been fabricated with various sheet supports. These adsorbent laminates have been successfully operated for oxygen enrichment at high PSA cycle frequencies, such as upwards of at least 150 cycles per minute. Methods for making suitable adsorbent laminates are described. The methods generally involve forming a slurry comprising a liquid suspending agent, an adsorbent and a binder. Laminates are made by applying the slurry to support material or admixing support material with the slurry. The slurry can be applied to support material using a variety of techniques, including roll coaters, split roll coaters, electrophoretic deposition, etc. One method for making laminates by mixing support material with the adsorbent slurry comprises depositing the slurry onto a foraminous wire, draining the slurry material, and pressing the material to form a ceramic adsorbent paper. Spacers can be formed on adsorbent laminates to space one laminate from another.

Abstract: The various embodiments of the present invention relate to compositions, apparatus, and methods comprising sorbent fibers. More particularly, various embodiments of the present invention are directed towards sorbent fiber compositions for temperature swing adsorption processes. Various embodiments of the present invention comprise sorbent fiber compositions, apparatus comprising a plurality of sorbent fibers, and methods of using the same for the capture of at least one component from a medium, for example CO2 from flue gas.

Abstract: A dehumidification unit comprised of alternate laminations of an adsorption element which supports an adsorbent and which is provided with a first air ventilation passage and a cooling element, which is provided with a second air ventilation passage. The first air ventilation passage of the adsorption element and the second air ventilation passage of the cooling element are adjacently formed, with a single plate member lying between the first and second air ventilation passages. As a result of such arrangement, as compared with a structure formed with two plate members lying therebetween second air ventilation passages, the performance of heat transfer between the air ventilation passages is further improved, whereby the dehumidification capability of the dehumidification unit is maintained at high levels over a long period of time.

Abstract: The invention relates to an adsorbing material (1) with a protective function against chemical toxins, especially chemical warfare agents, the adsorbing material (1) comprising a multilayered layer construction (2), the layer construction (2) comprising at least one in particular sheetlike carrier layer (3) and, associated to the carrier layer (3), a barrier layer (4) which prevents or at least retards the passage of chemical poisons, the barrier layer (4) comprising on the one hand at least one adsorbing layer (5) based on an adsorbent for chemical poisons and especially on activated carbon, and, on the other hand, at least one at least essentially water and air impervious but water vapor pervious membrane (6) which retards the passage of chemical poisons or is at least essentially impervious to chemical poisons. The adsorbing material (1) has a high wear comfort, in particular good breathability, while at the same time having excellent protection against chemical poisons.

Abstract: An adsorbent having porosity expanded by contact with a first agent effecting such expansion and a pressurized second agent effecting transport of the first agent into the porosity, wherein the adsorbent subsequent to removal of the first and second agents retains expanded porosity. The adsorbent can be made by an associated method in which materials such as water, ethers, alcohols, organic solvent media, or inorganic solvent media can be utilized as the first agent for swelling of the porosity, and helium, argon, krypton, xenon, neon, or other inert gases can be employed as the pressurized second agent for transport of both agents into the porosity of the adsorbent, subsequent to which the agents can be removed to yield an adsorbent of increased capacity for sorbable fluids, e.g., organometallic compounds, hydrides, halides and acid gases.

Abstract: A carbon nanotube filter, a use for a carbon nanotube filter and a method of forming a carbon nanotube filter. The method including (a) providing a carbon source and a carbon nanotube catalyst; (b) growing carbon nanotubes by reacting the carbon source with the nanotube catalyst; (c) forming chemically active carbon nanotubes by forming a chemically active layer on the carbon nanotubes or forming chemically reactive groups on sidewalls of the carbon nanotubes; and (d) placing the chemically active nanotubes in a filter housing.

Abstract: A carbon nanotube filter. The filter including a filter housing; and chemically active carbon nanotubes within the filter housing, the chemically active carbon nanotubes comprising a chemically active layer formed on carbon nanotubes or comprising chemically reactive groups on sidewalls of the carbon nanotubes; and media containing the chemically active carbon nanotubes.

Abstract: A high-efficiency filter for removing or collecting trace levels of chemical compounds includes a randomly oriented glass substrate, a primer coating and a carbon coating. The present filter is operable to sample or remove chemical compounds from the air with a high volumetric capacity while maintaining a low pressure drop across the filter substrate. A method for making the present filter includes providing a glass substrate with randomly oriented glass fibers which is treated to remove any glue or other substances; the substrate is then coated with a primer including polydimethylsiloxane; and the primed substrate is then coated with a carbonaceous compound including polydimethylsiloxane.

Abstract: A pressure swing adsorption (PSA) dryer for separating water and carbon dioxide from a gas stream includes two compound adsorbent columns [32, 42]. Each column comprises a primary adsorption material for adsorbing water and a secondary adsorbent that adsorbs carbon dioxide. The secondary adsorbent comprises a solid amine. The secondary adsorbent may be, for example, a highly porous polystyrene matrix with amine groups bonded to the porous resin structure. Preferably, a mixture of the primary and secondary adsorbent materials forms an intermediate layer [38, 48] sandwiched between a top layer [34, 44] and bottom layer [36, 46] of pure water adsorbent material in each of the columns [32, 42].

Abstract: The invention relates to a filter mat, which is used in applications where it filters the flows of contaminated air that pass through it. In such mats, there are points where aerosols collect. This is disadvantageous as it lowers the efficiency of the mat. The present invention overcomes this by having, at these points, wicks (2) that absorb said collections.

Abstract: A modular metal hydride hydrogen storage unit utilizing compartmentalization to maintain a uniform metal hydride powder density thereby reducing strain on the vessel due to repeated cycling. The modular metal hydride hydrogen storage unit may be constructed using prefabricated pressure containment vessels.

Abstract: Apparatus and methods for removing malodor from the air, particularly from confined spaces are disclosed. Such devices and methods are useful for example for storing and preserving food in closed compartments such as refrigerators. The apparatus and methods utilize baking soda as the odor removing substance, either alone, or in combination with another odor removing substance, which may include activated carbon. In one embodiment, the apparatus has a detachable cartridge member which contains baking soda. In one version of this embodiment, the detachable cartridge member is used with an air moving member that draws air through the detachable cartridge member. In one embodiment, the method involves using a detachable cartridge member with an air moving member in one confined space, and using another cartridge member without the air moving member in another compartment of the confined space.

Abstract: Disclosed in this specification is an apparatus for storing hydrogen which is comprised of molecular hydrogen, halloysite rods, and a supporting substrate wherein hydrogen is stored within the lumen of the halloysite rods.

Abstract: A process and a device for separating hydrogen from a gas flow having an oxygen constituent, comprised primarily of hydrogen, nitrogen, oxygen, carbon dioxide, carbon monoxide, methane and/or other hydrocarbons, is disclosed. The gas flow is compressed in a multi-stage compression process and then cooled to room temperature by a heat exchanger. After a pre-adsorber, the gas flow is fed to a catalytic process for removing the oxygen. The catalytic reaction for removing the oxygen takes place exothermically. The gas flow is then cooled to room temperature via another heat exchanger and fed to a pressure swing adsorption process for hydrogen separation. The hydrogen is separated there from the residual gas.

Abstract: A hydrocarbon adsorption unit for recovery of volatile hydrocarbons which emanate from several sources and which would otherwise be released into the atmosphere through the air cleaner of an automobile engine when the engine is shut-off. The unit is positioned in the air intake system such that all air flowing through the engine passes through the unit. The unit comprises a housing having an air inlet and an air outlet. The housing contains a substrate and a volatile hydrocarbon adsorber material coated on the surface of the substrate. The adsorber material may be silica gel, a molecular sieve and/or activated carbon. The material further contains a binder that will cause the material to adhere to the surface of the substrate.