Abstract: A filter assembly comprises an outer member and an inner member. The outer member is configured to allow a vacuum to be communicated through the outer member. The outer member comprises hydrophobic material and an interior cavity. The hydrophobic material is configured to substantially repel fluids at atmospheric pressure. At least a portion of the inner member is positioned within the interior cavity of the outer member. The inner member comprises occluding media configured to absorb fluids both at atmospheric pressure and when a vacuum is being communicated through the inner member. The filter assembly may be incorporated within a vacuum canister to be used in conjunction with a biopsy device as part of a biopsy system, although other suitable applications will be apparent to those of ordinary skill in the art in view of the teachings herein.

Abstract: A gas filtering device includes a housing (20,30), a flexible filter sheet (41), an inlet port (21), an outlet port (31), and a displacement restriction portion (41a) is provided. The flexible filter sheet (41) divides the interior of the housing into an inlet chamber and an outlet chamber. The filter sheet (41) has a portion that allows passage of gas. The inlet port is connected to the inlet chamber, and conducts gas into the inlet chamber. The outlet port is connected to the outlet chamber, and conducts gas from the inlet chamber to the/outlet chamber through the filter sheet. The outlet port has an opening close to the gas passing portion of the filter sheet. The displacement restricting portion (41a) restricts displacement of the gas passing portion toward the opening.

Abstract: The present invention relates generally to particle removal and air borne molecular contaminant air filters, and, more particularly, to a combination particle and air borne molecular contaminant filter with an activated material separator.

Abstract: An air drying arrangement for a commercial vehicle is provided having two or more desiccant canisters arranged in parallel on a single air dryer body. The arrangement may include an coupling device that attaches to the body and allows the two or more desiccant containing canisters to mount to the device. The arrangement may be configured to balance the flow of air to each of the desiccant containing canisters when drying air and/or when regenerating the desiccant.

Abstract: A high performance flatus gas filter assembly, and a body waste collection pouch with which it may be used, along with a method for making such an assembly, are disclosed. The assembly includes a filter pad having first and second layers of deodorizing filter media with an imperforate gas and odor barrier layer sandwiched therebetween for blocking the direct flow of gases between the opposing inner faces of the filter layers. An envelope of liquid and gas impermeable material defines a chamber for enclosing the pad. The envelope has walls with first and second openings communicating with central portions of the first and second filter layers, and defines a peripheral space about the pad to permit the outward flow of flatus gases from the peripheral edge surface of one of the filter layers inwardly into the peripheral edge surface of the other of the filter layers.

Abstract: An air cleaner assembly and an air induction system for an internal combustion engine. The air cleaner assembly preferably is formed using first and second housing members that are assembled to define an interior volume. A hydrocarbon adsorber is located within air induction system, e.g., within the interior volume of the air cleaner assembly. The hydrocarbon adsorber is positioned outside of the main air flow within a recess formed in a wall of one of the housing members. A purge channel is formed in the interior wall that houses the hydrocarbon adsorber. Air flow through the air induction system passes via the purge channel through the hydrocarbon adsorber. By facilitating air flow through the hydrocarbon adsorber that is positioned outside of the main airflow, the hydrocarbon adsorber is self-regenerating and does not have to be replaced over the lifetime of the vehicle as a result of hydrocarbon build-up.

Abstract: The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range.

Abstract: A dust arrester includes a housing with air inlet and air outlet, wherein the ambient air containing dust particles can be introduced into the housing via the air inlet and discharged from the housing via the air outlet. The dust arrester further includes a water trough placed in the bottom of the housing and a chaos effect generator including a nozzle and a material. The nozzle can spray water supplied from the water trough. The water sprayed interacts with the material to generate a chaos condition, so that the dust particles can be removed from the introduced air under the chaos condition.

Abstract: The invention concerns a self-propelled vehicle, in particular an aircraft, comprising an onboard equipment such as an inerting system, means for vapour pollutant filtering (1) arranged between an air intake (8) connected to a compressed air source and an air outlet (9) connected to the equipment. The invention is characterized in that the vapour pollutant filtering means (1) comprise adsorption filtering means such as molecular sieve and/or activated carbon.

Abstract: The adsorption of CO2 from flue gas streams using temperature swing adsorption. Adsorbent contactors are used in the temperature swing adsorption unit that contain a plurality of substantially parallel channels comprised of or coated with an adsorbent material that is selective for adsorbing CO2 from flue gas.

Abstract: A gas tank is hermetically filled with an insulating gas. A gas filling opening is provided on the gas tank, which includes a flange at its end. A gas filter device is fixed to the gas flange of the gas filling opening. The gas filter device includes a gas filter formed with a porous insulating material having pores with a diameter in a range from tens of micrometers to hundreds of micrometers. The gas filter has stability against the insulating gas and a decomposition product of the insulating gas.

Abstract: A fuel tank deaeration and aeration system, including a first main filter device having an inlet and an outlet, wherein the inlet is in fluid communication with a fuel tank; and a second additional filter device having an inlet and an outlet, wherein the inlet is in fluid communication with the outlet of the main filter device, and the additional filter device outlet is in fluid communication with an environment of a vehicle, and wherein a bypass valve controls a bypass, which bypasses the additional filter device.

Abstract: A gas tank is hermetically filled with an insulating gas. A gas filling opening is provided on the gas tank, which includes a flange at its end. A gas filter device is fixed to the gas flange of the gas filling opening. The gas filter device includes a gas filter formed with a porous insulating material having pores with a diameter in a range from tens of micrometers to hundreds of micrometers. The gas filter has stability against the insulating gas and a decomposition product of the insulating gas.

Abstract: Desiccant bag and filter assembly adapted for insertion into an integrated condenser dryer chamber of a vehicle or mobile air conditioning system or the like. A support member (4) lies along the exterior of a desiccant containing pouch (2) with the pouch secured at both of its longitudinal ends to the support. A filter member is integral with the assembly and positioned at one end of the pouch. Rigid stand off members (10, 18) are positioned at respective ends of the assembly.

Abstract: A method of assembling an inlet air filter assembly for use with a turbine engine system. The method includes coupling an inlet hood to an air filter enclosure, such that an airflow path is defined between the inlet hood and the air filter enclosure. A pre-filter is coupled to the inlet hood, such that the pre-filter is positioned within the airflow path. A filter bypass assembly is coupled to the pre-filter for moving the pre-filter from an operating position to a bypass position during operation of the turbine engine system.

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: The invention relates to compositions that can be used to adsorb low concentration, preferably, for example less than 15 ppm, of unwanted or target substances. Typically the absorbance can be from an enclosed vapor phase. Such absorbency is accomplished in a contained substantially enclosed gaseous volume or atmosphere using a composition comprising a cyclodextrin compound and a polyethylenimine that can have an absorbency capability for low concentrations of unwanted or target substances. Such absorbency can be obtained with thermoplastic materials used in the form of bulk polymer or a film, fiber, web, woven fabric, nonwoven fabric, sheet, packaging and other such structures including or surrounding the enclosed volume. The adsorbent of the invention is typically used in the context of an enclosed volume, also known as an enclosed ambient vapor phase that contains the adsorbent of the invention and the unwanted or target substances at a concentration that is not desirable.

Abstract: An aircraft fire-extinguishing system provides automatic fire prevention and/or suppression simultaneously in fuel tanks, cargo compartments and, when needed, in cabin using injection of hypoxic (oxygen-depleted) air produced onboard in an air-separation device utilizing the flow and pressure of the bleed air. The same air-separation device allows supplying passengers and crew with unlimited amounts of oxygen for as long as needed. New methods of a rapid fire suppression utilizing the propulsion of water mist or fire-extinguishing foam by hypoxic air are presented. The combination of water mist or foam with hypoxic air allows to present two innovative fire-extinguishing compositions.

Abstract: Provided are plasma-aided gas storage methods and apparatus. In one embodiment, a porous powder bed assembly equipped with corona discharge electrodes is used to generate a non-equilibrium plasma of negatively ionized gas molecules which absorb onto porous particles, e.g., activated charcoal, to form a gas storage entity. Gas adsorbed onto the particles is desorbed at moderate temperatures by aid of ultraviolet light illumination.

Abstract: The present invention provides an air-permeable filtration media that includes an air-permeable backing and an adsorbent. The adsorbent is at least partially embedded in the air-permeable backing. The present invention also provides a method of manufacturing an air-permeable filtration media. The present invention also provides a method of substantially removing contaminants from air, employing the air-permeable filtration media.

Abstract: An apparatus and a method for separating a specified gas from a gas to be treated containing the specified gas comprising at least one ingredient, which comprises allowing the gas to be treated to flow through a column without the use of another gas for transferring the gas to be treated, while keeping the inside of the column packed with a packing material at a reduced pressure. The above apparatus and method can be suitably used for separating a specified gas having a high purity at a low cost.

Abstract: The present invention provides desiccant cartridge (10) for a vehicle air dryer, the cartridge (10) having a casing comprising a base (12) and a cover (14), the cartridge (10) further having a charge inlet (24) arranged to receive air from a compressor and a charge outlet (22) in fluid communication with the charge inlet (24), the casing containing a coalescing apparatus (20) and a desiccant (18) arranged between the charge inlet (24) and the charge outlet (22) such that air entering the casing via the charge inlet (24) passes sequentially through the coalescing apparatus (20) and desiccant (18) before reaching the charge outlet (22), wherein the cartridge (10) is further provided with a purge outlet (26) disposed in the casing between the coalescing apparatus (20) and desiccant (18), and the charge inlet (24), charge outlet (22) and purge outlet (26) are provided in the base (12) of the cartridge (10).

Abstract: An apparatus for collecting smoke and dust with a deodorizing function which has excellent capability for maintenance and an improved deodorizing and silencing effect, the apparatus having a housing and a bulkhead having an opening and disposed in the housing to separate a space for deodorizing and filtering exhaust gas from a space for discharging exhaust gas, a vacuuming device for vacuuming exhaust gas disposed in the space for discharging and communicating with the opening of the bulkhead, a filtering device for filtering exhaust gas disposed in the space for deodorizing and filtering and communicating with the vacuuming device through the opening of the bulkhead, and a deodorizing device for deodorizing the exhaust gas concentrically disposed at an outer side of the filtering device.

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: A moving bed system for removing contaminates from a fluid stream is provided. The system can include a housing and a first bed system disposed in the housing. The first bed system can be coupled to the housing, and can include at least one flow channel adapted to enable an adsorbent material to flow through the first bed system. The system can include a second bed system disposed in the housing, which can include at least one flow channel in fluid communication with the first bed system to receive the adsorbent material from the first bed system. The channel of the second bed system can be symmetrical to the flow channel of the first bed system about a horizontal axis. The first bed system and the second bed system can direct a contaminated fluid stream into contact with the adsorbent material to remove the contaminates from the fluid stream.

Abstract: There is provided an apparatus for highly purifying nitric oxide by removing impurities included in nitric oxide, which comprises: a number of dehumidifiers connected to one another in a series, to remove water and carbon dioxide from the nitric oxide; a vaporizing and liquefying unit for respectively separating impurities into a gaseous state and a liquid state by cooling the nitric oxide which passed through the dehumidifiers at sub-zero temperatures; a storage tank for storing highly purified nitric oxide separated by the vaporizing and liquefying unit; an exhaust pump for discharging gaseous impurities, separated by the vaporizing and liquefying unit, to a scrubber; an outlet for discharging liquid impurities, separated by the vaporizing and liquefying unit, to the scrubber; and the scrubber 50 for purifying the gaseous and liquid impurities.

Abstract: An air dryer desiccant cartridge, the cartridge comprising a base having an inlet and an outlet, and a casing connected to the base to define a cavity there between, wherein the cavity contains a filter and a desiccant, the filter being arranged upstream of the desiccant such that during normal operation fluid flow entering the cartridge through the inlet passes through the filter and then on to the desiccant before reaching the outlet, and during purging of the cartridge purge flow entering the outlet passes through the desiccant before reaching the filter, wherein further the cartridge includes a valve operable to permit a portion of the purge flow to bypass the filter.

Abstract: A slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures includes the steps of dissolving the gas mixture and carbon dioxide in water providing a gas, carbon dioxide, water mixture; adding a porous solid media to the gas, carbon dioxide, water mixture forming a slurry of gas, carbon dioxide, water, and porous solid media; heating the slurry of gas, carbon dioxide, water, and porous solid media producing steam; and cooling the steam to produce purified water and carbon dioxide.

Abstract: A filter includes a housing having an air inlet, an air outlet, a first chamber and a second chamber concentric to and interior the first chamber. A coalescer is in the first chamber and a first filter is in the second chamber. A first inlet of the first chamber is interior the coalescer and connected to the air inlet and a first outlet of the first chamber being exterior the coalescer. A second inlet of the second chamber is interior the first filter and connected to the first outlet of the first chamber and a second outlet of the second chamber is exterior the first filter and connected to the air outlet. The filter includes a membrane separator in the housing connecting the second outlet of the second chamber and the air outlet. The filter may be mounted in a reservoir with the membrane separator extending into the reservoir.

Abstract: An operating room filter system connectable to a surgical body gas evacuator, such as a trocar, that includes a carbon monoxide filter media that removes carbon monoxide from a surgical waste gas. In addition, the inclusion of further filter media upstream of the carbon monoxide filter media inhibits the saturation of the carbon monoxide filter media to thereby provide an extended life to the filtration system.

Abstract: An enclosure system for a device includes an enclosure having an outer surface and an inner surface. The system includes an aperture that extends between the outer surface and the inner surface of the enclosure. The aperture has a larger cross-section adjacent the outer surface than adjacent the inner surface. A filter is positioned within the aperture.

Abstract: The present invention relates to a gas filtering-buffering device, which comprises at least one gas filtering unit; a gas inlet, the gas to be processed flows into the at least one gas filtering unit from the gas inlet; and a gas outlet, the gas processed by the at least one gas filtering unit is discharged out of the at least one gas filtering unit via the gas outlet, wherein the at least one gas filtering unit comprising: a gas buffering cavity for performing buffering function for the gas, and a gas filtering part for performing filtering function for the gas. In the present invention, it is not only provided with a gas filtering part which is able to filter the moisture and organic substance in the gas, but also provided with a gas buffering cavity, which integrate the filtering and buffering functions together.

Abstract: A sheet-like filter element is installed on a support within the casing of a filter device. A plate-like portion is integrally formed in at least the outer periphery of the filter element. A crimped portion which is to be secured to the support in a crimped state is formed in this plate-like portion. A protrusion which rises through the above described plate-like portion is formed so as to be integrated with the above described support around this crimped portion. The plate-like portion is secured to the support by means of this protrusion.

Abstract: An air dryer, used in a compressed air system, includes an oil coalescing element for agglomerating oil in compressed air passing through the oil coalescing element in a first direction during a charging cycle and passing through the oil coalescing element in a second direction during a purging cycle. A drying material, which is downstream of the oil coalescing element during the charging cycle and upstream of the oil coalescing element during the purging cycle, reduces moisture in the compressed air during the charging cycle.

Abstract: Disclosed is a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream. In one embodiment, the fuel filter comprises at least one column comprising an adsorbent. In one exemplary embodiment the adsorbent is capable of removing sulfur containing compounds, especially sulfur containing aromatic compounds, from fuels used in internal combustion engines, especially diesel fuels. Also disclosed is an apparatus for extending the life cycle of a post combustion emission control device. In one exemplary embodiment, the apparatus comprises a fuel filter for removing sulfur containing compounds from an internal combustion fuel stream and an emission control device. Finally, a method for removing sulfur containing compounds from an internal combustion fuel stream is disclosed.

Abstract: A dryer and a drying apparatus attachable to a dryer are disclosed. A wheel having desiccant material is located in line and in close proximity with a heating element. The wheel includes a first portion positioned in an inlet air path and a second portion positioned in an outlet air path. The desiccant material removes water molecules from air within the inlet air path, and lowers the vapor pressure of the incoming air. In the outlet air path, heated air flows through the second portion to transfer energy to the desiccant material. The wheel rotates to change the desiccant material within the portions.

Abstract: A support framework for containing a media that is used to remediate corrosive vaporous pollutants in an air stream. The support framework is situated within a plenum and comprises two concentric open-lattice weave frameworks made from corrosion resistant fiberglass reinforced plastic “FRP”. The frameworks are of differing diameters and the media is placed into and contained within the open space formed between the inside wall of the outer framework and the outside wall of the inner framework. The open-lattice weave design allows a greater radial flow through the media per unit of time, doing so with less pressure drop and using less energy than the prior art. The use of FRP to form the framework walls allows creation of large units that are suitable for use in municipal and industrial settings, which was not possible previously.

Abstract: An air cleaner particularly disposed for an internal combustion engine is provided with a housing, a filter element disposed in the housing, and adsorbent disposed on the side of an outlet formed to the housing and adapted to adsorb an evaporated fuel invaded inside the housing through the outlet. The adsorbent includes an adsorbing material adsorbing the evaporated fuel and a pair of non-woven fabrics sandwiching the adsorbent material from both sides thereof, and at least one of the non-woven fabrics disposed on the outlet side includes a reinforcing material so as to be integrated with the non-woven fabric.

Abstract: A hydrocarbon adsorption assembly is shown, wherein the hydrocarbon adsorption assembly is disposed in an encapsulating layer adapted to be received by an air filter of an automobile.

Abstract: Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxite ores. Exemplary sulfidizing compounds are H2S, Na2S, K2S, (NH4)2S, and CaSx. The sulfur content typically is from about 0.2 to about 10% above the residual sulfur in the red mud. Sulfidized red mud is an improved sorbent compared to red mud for most of the heavy metals tested (Hg, Cr, Pb, Cu, Zn, Cd, Se, Th, and U). Unlike red mud, sulfidized red mud does not leach naturally contained metals. Sulfidized red mud also prevents leaching of metals when mixed with red mud. Mixtures of sulfidized red mud and red mud are more effective for sorbing other ions, such as As, Co, Mn, and Sr, than sulfidized red mud alone.

Abstract: The invention relates to an air cleaner, and more particularly to an air cleaner which includes a regenerative deodorizing filter to purify and treat gaseous substances contained in air, thus enabling efficient regeneration of the regenerative deodorizing filter, and a method of regenerating the filter of the air cleaner.

Abstract: A system and method for removing sulfur-containing contaminants from indoor air includes a panel system having a first layer and a second layer. The first layer can include a base media onto which sodium bicarbonate is attached. The second layer can include a base media onto which activated carbon is attached. Indoor air including sulfur-containing contaminants can contact and pass through the first layer. Sulfuric acid can react with the sodium bicarbonate to produce sodium sulfate, which can, in turn, act as a drying agent for organic sulfur-containing contaminants in the indoor air, such as carbon disulfide and carbonyl sulfide. As a result of such drying, the second layer can more effectively trap and/or bind (adsorb) the organic sulfur-containing contaminants so that these contaminants are removed from the contaminated air. The treated air can be returned to an indoor space of the structure.

Abstract: A housing of an air cleaner has an air inlet port and an air outlet port, and incorporates an air filter. In the housing, a fuel adsorption filter is arranged downstream of the air filter in such manner as to intersect an air passage. An open portion and a sheet-like adsorption portion are vertically defined in an outer frame of the fuel adsorption filter. The adsorption portion has a fuel adsorbing function. A weir is provided in a boundary between the open portion and the adsorption portion. The weir limits air flow from the upstream side of the adsorption portion to the upstream side of the open portion. A flow straightening plate having a flow straightening function is provided in the open portion.

Abstract: A filtering device has a filter hose that is arranged in a support pipe wherein between the outer side of the filter hose and the inner wall of the support pipe an annular chamber for the flow of the fluid to be purified is formed. Moreover, an adsorber unit for adsorption of residues is arranged in or on the support pipe.

Abstract: The invention provides an adsorptive filtering material endowed with integrated particle and/or aerosol protection and with protective performance with regard to biological and/or chemical noxiants, in particular biological and/or chemical warfare agents, the adsorptive filtering material having a multilayered construction comprising a carrier layer, an adsorptive layer assigned to and preferably fixed to the carrier layer, and optionally a covering layer disposed on that side of the adsorptive layer that is remote from the carrier layer, wherein the adsorptive filtering material is additionally equipped with a particle and/or aerosol filtering layer which is preferably disposed between the adsorptive layer and the covering layer, wherein the particle and/or aerosol filtering layer is embodied as an air pervious textile fabric formed from fibers having fiber diameters in the range from 10 nm to 5 ?m, preferably 100 nm to 1.

Abstract: The present invention relates to an air dryer (10) for a vehicle air system. The air dryer (10) includes a body (12) and a desiccant canister (14), the body (12) having an inlet (16) to receive air from an air source, an outlet (18) to supply air to a vehicle air system, a purge outlet and a regeneration inlet (24) to receive regenerative airflow from the vehicle air system. The body (12) is further provided with a chamber (28) containing a coalescer (38)positioned between the inlet (16) and the desiccant canister (14), and a bypass valve (34) positioned between the chamber (28) and the purge outlet. The coalescer (38) and bypass valve (34) are arranged such that during normal operation air entering through the inlet (16) passes through the coalescer (38) before reaching the desiccant canister (14) and during regeneration of the desiccant a portion of the regeneration flow passes through the coalescer (38) and the remainder of the regeneration flow bypasses the coalescer (38) through the bypass valve (34).

Abstract: The invention relates to a device for filtering contaminants, such as particulates and vapor phase contaminants, from a confined environment such as electronic or optical devices susceptible to contamination (e.g. computer disk drives) by providing an improved reduced fiber filter.

Abstract: A process and apparatus for treating a biogas stream. The treatment is both to increase methane content and reduce H2S content, said process comprising at least, (i) taking a biogas stream having both a methane and carbon dioxide content and including an H2S content, (ii) scrubbing the stream (with or without prior modification, e.g. any one or more of compression, partition, stripping, flashing, recycle in part, etc.), (iii) drying the wet stream from step (ii) stream, and (iv) removing H2S from step (iii) stream to a level below 0.005%.

Abstract: Embodiments of the invention relate to a composite hydrogen storage material comprising active material particles and a binder, wherein the binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles.

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.