Abstract: Improvements in a filter where the filter self-expands based upon increased pressure or vacuum in the filtering stream. The expandable filter is adaptable to filtering a wide variety of media including air used in HVAC units, gases that are used to filter impurities out of gases and for industrial applications. The expandable filter to maintain a constant pressure or vacuum in the plenum or filter. The filter self-expands as the pressure or vacuum increases and pushes, pulls or draws the filter into an elongated or heightened configuration. As the filter expands new filter material is exposed that was not previously exposed for filtering. Expansion doubles, triples, or further increases the filter collection surface area. The filter does not rely upon gravity and expands based upon the increase of pressure or vacuum in the plenum the filter can be arranged in a vertical or horizontal orientation.

Abstract: A method of producing a filter unit, such as an air/oil separator, having a tubular filter element bonded at one end to an end cap, is proposed. The method includes the steps of: providing a tubular filter element and an end cap; melting a portion of the end cap; and embedding an end of the filter element into the melted portion of the end cap. The melted portion, on cooling, solidifies to bond the tubular filter element to the end cap. The end cap can be formed of thermoplastic containing an electrically conductive filler. The end cap can be formed of a thermoplastic having a melting point of at least 180 C. The method may further include, after the embedding step, a step of forcing melted thermoplastic from the melted portion radially against a side wall of the tubular filter element.

Abstract: An extraction apparatus includes at least one filter and a grease collection channel, wherein the grease collection channel has a number of removable troughs, which support the at least one filter. The troughs can be arranged flush with one another in a holder Each of the troughs has a handle, which has at least one air through-flow opening.

Abstract: A circular cylinder air filter includes an inner cylindrical frame, an outer cylindrical frame, a circular disc, a bonding base and a non-woven fabric cover. The outer cylindrical frame is coaxially arranged around the inner cylindrical frame. The circular disc is fastened to a first end of the inner cylindrical frame and the outer cylindrical frame. The bonding base is fastened to an opposite second end of the inner cylindrical frame and the outer cylindrical frame. A first opening of the bonding base communicates with a first hollow region between the inner cylindrical frame and the outer cylindrical frame. A second opening of the bonding base communicates with a second hollow region within the inner cylindrical frame. The air filter medium is filled into the first hollow region through the first opening. The fabric cover encloses the outer cylindrical frame, circular disc and bonding base to expose the second opening.

Abstract: An adaptable emission filtration, monitoring, and notification system for emission sources within a civic infrastructure has a filter housing with filtration media located inside. The system has a control system with a filter intake sensor, a filter discharge sensor, a microprocessor, a power source, and a transmitter. The system has a civic reception system located in a geographically bound area of interest, with a receiver. The filter housing intake side is attached to an emission source discharge opening. The filtration media filters toxic emissions from the gas stream. The microprocessor compares the signal from the filter intake sensor and the filter discharge sensor then sends a resultant signal by way of a transmitter to the receiver of the civic reception system upon detected decreased efficiency of the filtration media.

Abstract: A moving granular bed includes a filter granule channel, an inlet unit of gas, an outlet unit of gas, a first detecting unit and a feedback control unit. The inlet unit of gas is disposed at one side of the filter granule channel, and the dirty gas is fed into the filter granule channel through the inlet unit of gas. The inlet unit of gas has a first flow-guiding plate. The outlet unit of gas is disposed at the other side of the filter granule channel. The first detecting unit detects the gas velocity at the inlet unit of gas site. The feedback control unit is electrically connected with the first detecting unit, and controls the angle of the first flow-guiding plate and flow rate of filter granules according to a detecting result of the first detecting unit. A gas guiding system used in the moving granular bed is also disclosed.

Abstract: A gas mask filter canister of varying shapes is filled by orienting the a fill opening to face upwardly, introducing into the fill opening a particulate filter material, and vibrating the filter canister at a frequency and amplitude, and for a time until a predetermined packing density is reached. The invention can be used to fill elliptical or other odd shaped filter canisters having a concave profiles to conform closely to the curvature of the wearer's face.

Abstract: A support framework for containing a structurally integral, porous remediation media, such as foam or reticulated foam that is used to remediate corrosive vaporous pollutants in a contaminated inlet stream. The support framework is situated within a plenum and comprises a pair of open-lattice weave frameworks made from corrosion resistant fiberglass reinforced plastic “FRP”. The frameworks are of differing diameters and are concentrically aligned such that a media containment section is formed 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: Described is a vacuum-cleaner bag which is made of an air-permeable filter material and forms a closed dust-collecting chamber, the vacuum-cleaner bag containing a material which can be whirled up under a given air flow.

Abstract: An adsorptive filter/member for adsorbing a gaseous adsorbate. The filter includes two layers of a flexible polymeric material to form an area therebetween. Fasteners are located at predetermined areas across the two layer outer surfaces, the fasteners extending from the outer surface of one layer to the outer surface of the other layer. The fasteners subdivide the area into a plurality of substantially enclosed chambers. Adsorptive media is disposed within each of the plurality of chambers. The chambers are adapted to substantially evenly distribute adsorptive media throughout the filter. Throughbores extend through the filter, and receive attachment members for mounting the filter to a surface. A gaseous adsorbate flow path is in gaseous communication with one of the outer surfaces of the two layers. Each of the two layers' polymeric materials includes pores that are permeable to the gaseous adsorbate, yet are substantially impermeable to the adsorptive media.

Abstract: A disposable dryer cartridge for an air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The cartridge includes a flexible elongated casing having a drying composition therein. The casing has an air/gas inlet and an air/gas outlet thereon. A handle is also provided on the casing. The casing is self-configurable into a cross-sectionally contracted configuration when lifted by the handle to facilitate insertion in or removal from an air/gas dryer apparatus. Following insertion of the casing in an air/gas dryer, it is manipulated as necessary to reconfigure the casing from the contracted configuration to an operational configuration wherein the casing is not cross-sectionally contracted and wherein the drying composition is compacted. When the casing needs replacement, it can be grasped by the handle and lifted to re-effect the contracted configuration and thereby removed from the dryer.

Abstract: Chemical processing apparatuses which incorporate a process vessel, such as a crucible or retort, and which include a gas separation or filtration system. Various embodiments incorporate such features as loose filtration material, semi-rigid filtration material, and structured filtration material. The vessel may include material that is a microwave susceptor. Filtration media may be selected so that if it inadvertently mixes with the chemical process or the reaction products of such process, it would not adversely affect the results of the chemical process.

Abstract: An exhaust gas filter cartridge which is suitable for use in a muffler such as to form an exhaust gas filtering system is disclosed. The filter cartridge preferably includes a first porous longitudinal wall and a second porous longitudinal wall, both porous longitudinal walls having openings which allow for a sufficient gas flow through the filter cartridge. An absorbent material, preferably in pellet form, is housed substantially in-between the first porous longitudinal wall and the second porous longitudinal wall of the filter cartridge. The filter cartridge is preferably disposable. A guard casing may be used in conjunction with the filter cartridge to provide an exhaust gas filtering system. The guard casing preferably has two end closure structures. A gas inlet end structure is preferably associated with one end closure structure and a gas outlet end structure may be associated with the other end closure structure of the guard casing.

Abstract: A disposable cartridge air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The dryer includes a pressure vessel having first and second ends, an inlet port, and an outlet port. A disposable dryer cartridge is disposed in the pressure vessel. The cartridge includes a casing and a quantity of a drying composition in the casing. A cartridge support surface in the pressure vessel supports a first end of the cartridge. A cartridge-receiving opening is provided in the pressure vessel for inserting and removing the cartridge in the pressure vessel. A cover removably covers the opening and captures a second end of the cartridge. The dryer can be provided with a handle so that it can be easily and quickly replaced by opening the cover, pulling out the cartridge and inserting a new cartridge.

Abstract: The invention relates to a filter module in the form of a hollow body with at least one chamber. The walls of the hollow body are made of a non-metallic material that can be comminuted and/or disintegrated in a recycling process. The material is a paper product, such as cardboard, paper or paperboard, or a fibrous material, such as wood or pressboard material.

Abstract: An improved method is provided for treatment of feed water for livestock and other animals to reduce bacterial contamination while at the same time improving live performance. A gaseous mixture comprising ozone and oxygen gas is produced from ambient air and directly contacted with a supply of water to produce a solution of gaseous mixture. This contact step is continued until the content of ozone in the water supply is within a range of from about 5 parts per million to about 20 parts per million, and the content of oxygen is between about 80% and 97% of saturation. Thereafter, the resultant water product is directed for use as feed water to livestock or other animals to be treated.

Abstract: Systems and methods for removing hydrocarbons and other pollutants from roadway surfaces are provided. The systems can include a pollution trap attached to a vehicle, where the pollution trap comprises an absorbent pad, filter, or membrane. The pollution trap is affixed to the vehicle, for example, in the wheel well, on a mud flap, on the underside of a vehicle or another suitable place where the pollution trap can be exposed to a roadway pollutant. The methods described herein can include liberating roadway pollutants from a roadway and using a pollution trap to collect the liberated roadway pollutants.

Abstract: An expandable desiccant element for removal of moisture from an air stream. Such expandable desiccant element includes at least one first expandable containment section capable of expanding a first predetermined amount, at least one second expandable containment section capable of expanding a second predetermined amount which is greater than the first predetermined amount connected to the first expandable containment section. Such at least one first expandable containment section and at least one second expandable containment section forming a predetermined shape.

Abstract: A dual-action vent check valve is disclosed. The valve includes a first check valve which is responsive to elevated fluids inside the valve. A second check valve is responsive to elevated fluids external to the valve. The first check valve prevents overflow from a vented structure, such as a sewer out-fall line, from passing through and out of the valve, thereby preventing spills. The second check valve operates to prevent floodwater from passing into an underground structure, such as a sewer, through the vent. One embodiment of the invention includes a basket for enclosing a deodorizing material inside the valve for deodorizing gases which pass through the valve.

Abstract: A dehydrator breather is provided that includes a vessel, a desiccant container, a valve housing coupled to the vessel, and a vent assembly coupled to the valve housing. The vent assembly includes screened ports disposed along a vertical axis of the vent assembly body that allow air to enter and exit the dehydrator breather. The vent assembly, along with a filter placed between a desiccant container and the valve housing, individually and jointly, prevent desiccant that escapes the desiccant container from clogging the valve assembly.

Abstract: An assembly for removing carbon dioxide and water from a flow stream includes a housing that defines an inlet and an outlet. A CO2 sorbent sheet is disposed within the housing and includes integrally formed airflow passages and support structures. The CO2 sorbent sheet is encapsulated within a porous metal that is dimensionally stable and increases the rigidity and durability of the CO2 sorbent sheet.

Abstract: A method and apparatus of the invention includes a method of removing airborne hydrocarbons from liquid electrophotographic printer exhaust comprises generating airborne hydrocarbon droplets as either vapor or mist during the transportation of electrophotographic ink or toner, directing substantially all of the air and hydrocarbon droplet mixture to a central collection point, forcing the air/droplet mixture to and through an oleophilic, substantially non-leaching collection media, and exhausting substantially hydrocarbon-free air from the electrophotographic printer. The method may further comprise inducing pressure in the printer with air pressure reduction to pull the exhaust through the collection media, for example with a pump or fan used to produce air pressure reduction. The method may comprise inducing airflow in the printer with ventilation holes or by the addition of a fan to provide a fresh air inlet. The air/hydrocarbon mixture may be directed to the collection media by a transportation system.

Abstract: The invention relates to a filter bag for holding filtering material located inside a gas-installed housing of the electrical installation. The filter bag is produced from a fabric that is resistant to high temperatures, which eliminates the need for holding devices protecting the filter bag from hot switching gases to be provided inside the compressed gas housing.

Abstract: A delivery system for carbon dioxide absorption material includes a container for the storage of carbon dioxide absorption material, and a receptacle capable of receiving carbon dioxide absorption materials. The receptacle has a contact limiting membrane that substantially prohibits the passage of particulate matter from the carbon dioxide absorption material and allows the passage of gases therethrough.

Abstract: An adsorbent unit including first and second porous containers, adsorbent in the first and second porous containers, a first and second end on each of the first and second containers, a yoke connecting the first ends, spaced first apertures in the yoke, a severance in the yoke extending between and in communication with the first apertures, a tab on each of the second ends of the first and second porous containers, and a second aperture in each of the tabs.

Abstract: An adsorbent unit including first and second porous containers, adsorbent in the first and second porous containers, a first and second end on each of the first and second containers, a yoke connecting the first ends, spaced first apertures in the yoke, a severance in the yoke extending between and in communication with the first apertures, a tab on each of the second ends of the first and second porous containers, and a second aperture in each of the tabs.

Abstract: An adsorbent unit including first and second porous containers, adsorbent in the first and second porous containers, a first and second end on each of the first and second containers, a yoke connecting the first ends, spaced first apertures in the yoke, a severance in the yoke extending between and in communication with the first apertures, a tab on each of the second ends of the first and second porous containers, and a second aperture in each of the tabs.

Abstract: A sorbent filter for use with an air-purifying apparatus. The filter includes a flexible bag and a sorbent material in granular form. The flexible bag defines at least one storage region and is formed of a porous material. The sorbent material is disposed within the storage region. With this configuration, the porosity of the flexible bag is configured to allow passage of air such that the air, including air-borne gaseous molecules or odors, can interact with and be adsorbed by the sorbent material. Conversely, however, the porosity of the flexible bag limits passage of sorbent material granules and dust. As such, the filter generates little if any dust during handling. In one preferred embodiment, the flexible bag is selectively attachable to a separate frame that in turn is designed for mounting within the air-purifying apparatus. With this configuration, the frame can be re-used such that filter replacement requires only a new sorbent filter.

Abstract: The present invention relates to a device for use in a manhole or similar structure, whereby the device is designed to filter contaminate gas typically found in such structure. More particularly, the device includes a canister member filled with filtration media, a skirt member designed to direct contaminate gases towards the canister, and a support member for holding the canister in place.

Abstract: In one embodiment, the filter cartridge comprises a mesh structure forming a generally annular cylinder comprising a center opening, a plurality of compartments containing a filter medium, and spaces between the compartments. The spaces between the compartments comprise substantially unimpeded airflow passages that permit airflow even when the filter medium is fully loaded.

Abstract: An adsorbent package is provided for mounting to a filter or bleed nipple that is, in turn, attached to a bright tube or other fluid flow conduit in an auto or truck accumulator or receiver dryer. In a preferred form of the invention, a centrally disposed opening is provided in the adsorbent package and is surrounded by a rigid collar. The aperture is dimensioned so that it will be force or snap fit over a flange or the like on a filter.

Abstract: An adsorbent package is provided for mounting to a filter or bleed nipple that is, in turn, attached to a bight tube or other fluid flow conduit in an auto or truck accumulator or receiver dryer. In a preferred form of the invention, a centrally disposed opening is provided in the adsorbent package and is surrounded by a rigid collar. The aperture is dimensioned so that it will be force or snap fit over a flange or the like on a filter.

Abstract: A vehicle air conditioning system including a compressor, a condenser coupled to the compressor, an evaporator coupled to the condenser, and an accumulator coupled between the evaporator and the compressor, an adsorbent unit in the accumulator, the adsorbent unit including a casing and adsorbent in the casing, and the casing being fabricated of a fabric which does not produce a thumping noise emanating from the accumulator when the compressor is cycled on.

Abstract: A rooftop grease containment system for absorbing the high viscosity grease carried by the gaseous effluent generated by cooking food and released through a rooftop exhaust vent, comprising 4-8 mm hydrophobic silica particles contained within porous pads, tubes and pillows placed in different positions in proximity to the rooftop exhaust vent is disclosed.

Abstract: A removable floor drain odor control device which fits into standard floor drains of various sizes and acts to reduce or eliminate odors emitted from floor drains through use of a washable and regenerable carbon-based adsorbent. The preferred carbon-based adsorbents is a catalytically-active carbonaceous char, with the Centaur.TM. carbon being most preferred.

Abstract: A preformed desiccant bag for use with a retaining clip including a preformed porous casing including a first preformed bulbous end portion of a first girth, a second preformed bulbous end portion of a second girth, a central preformed waist portion of a third girth located between the first and second preformed bulbous end portions, with the third girth being smaller than either the first and second girths to thereby provide a pronounced position for reception of a retaining clip, and desiccant in the casing.

Abstract: A cup like, rigid desiccant container and methods for co-molding the container to associated accumulator tubing are disclosed. The container includes an elongated U-shaped slot bounded by upstanding wall surfaces of the housing. A first pair of opposed ridges formed on opposite ones of the walls is provided for snap fitting over an accumulator tube or tube segment. A pair of opposing protuberances is provided on opposite wall surfaces near the circumferential border of the container to provide a second grasping location to snap or friction fit over a second tube or tube segment.

Abstract: A grille (26) for retaining an active material (42) in a receptacle (10) which has a convex bottom (14) delimiting an internal space within the receptacle. The grille (26) has the form of a vault and is disposed in the internal space in contact about a portion of its periphery with the internal wall of the convex bottom of the receptacle. The direction of convexity of the vault (26) and of the bottom (14) are opposite to each other. Use in grilles for the support of an adsorbent material in an adsorber.

Abstract: A preformed desiccant bag for use with a retaining clip including a preformed porous casing including a first preformed bulbous end portion of a first girth and width, a second preformed bulbous end portion of a second girth and width, a central preformed waist portion of a third girth and width located between the first and second preformed bulbous end portions, with the third girth and width being smaller than either the first and second girths and the first and second widths to thereby provide a pronounced position for reception of a retaining clip, and desiccant in the casing.

Abstract: A filter cartridge for use with liquids or gases which includes a back structure having a plurality of pockets formed in it and filtration granules contained within the channels. Each of the pockets includes a plurality of holes to enable water to pass through the back structure. A filter element is secured to the front of the back structure to cover the pockets. Positioned between the pockets are protruding shelves which engage the filter element. The provision of the pockets and shelves enables a uniform distribution of filtration granules to be maintained throughout the filter cartridge.

Abstract: A recyclable filter cartridge for use in photographic processing has a main tubular housing 11 that encases a core in which a synthetic fiber filtering material 17 is located. The core is accessed by elongated slots 15, 16 formed circumferentially in an outer shell 14 of the housing 11. The slots 15, 16 allow entry of photographic processing chemicals into the core so that, under the influence of an external pump, the processing chemicals may pass through and be filtered by the filtering material 17. There is a tubular outlet 19 for exit of the filtered processing chemicals from the core and for their passage to a processing tank 35. The cartridge may be disassembled by disconnection of a stem tube 12 from the main tubular housing 11 so as to allow manual removal of the used filtering material 17 from the core and the replacement within the core of clean filtering material.

Abstract: The air purifier is used in a forced air heating and cooling system. It includes a cabinet assembly having therein a removable adsorber media carrier assembly. The carrier assembly includes a plurality of removable and refillable adsorber tubes provided with pelletized activated carbon or other adsorption media. The adsorber tubes are made from wire mesh and are arranged in rows with the air flowing through the cabinet assembly striking and impinging on the adsorber tubes in order to purify the air.

Abstract: Filter apparatus comprises a wall defining a chamber and a filter device mounted between an air inlet of the chamber and an air outlet thereof for filtering air passing therethrough. The filter device comprises a stiff frame defining an opening, and tubular pockets made of open weave mesh material. The pockets extend across the opening in spaced parallel relationship and contain vapor filter material.

Abstract: A manufacture and method by which particulate in the polluted ambient air is collected and retained, thereby purifying the ambient air. The manufacture is mounted amid a vehicle (17, 38, etc.) at a location always accessible to the ambient air in the atmosphere. Relative motion between vehicle and the polluted ambient air (37, 65) provides confrontation of the polluted air with a confronting receptacle (14) in which loosely gathered together pellets (13) are gathered together. Receptacle (14) comprises wire mesh (15) having interstices (31) smaller than the size of the pellets (13). As relative motion occurs between vehicle (17) and polluted air (37, 65), receptacle (14) confronts the polluted air, its pellets (13) entrapping particulate in the polluted ambient air, thereby purifying the ambient air and thereafter it being directly returned to the ambient air in the atmosphere. Alternative embodiments (43, 55) provide cages (26) into which receptacles (14) with their pellets (13) are put.

Abstract: Adsorption agent cartridge includes a vacuum tight cover having an adsorption agent filler consisting of a substance which can adsorb operating medium steam. The adsorption agent cartridge further includes an inlet opening for the inflow of the operating medium steam and an exhaust opening, which preferably connects to an exhaust device, for expelling air and nonadsorbed gases from the adsorption agent filler. The adsorption agent filler is designed to adsorb the operating medium steam and not to adsorb air components. The exhaust opening and the inlet opening are so arranged with respect to the adsorption agent filler such that the non-adsorbed gases are expelled from the regions of the adsorption agent filler without the concurrent removal of the inflowing operating medium steam.

Abstract: A method of converting a dehumidifier (10) having a base portion (16), a center portion (18), an upper portion (20), a desiccant container (62), and receptacle container (36), to an air purifier (12). The method includes removal of the desiccant container (62) and replacing it with an air filter cartridge (94). The invention is also directed to the air purifier (12) and air filter cartridge (94) for converting from a dehumidifier (10) via the air filter cartridge (94).

Abstract: An improved air filter assembly for removing particulates and undesirable gases from a stream of contaminated air including a first layer of filter fabric formed by parallel elongated semi-cylindrical surfaces joined at common parallel edges and a cooperating second layer of filter fabric contacting the first layer of fabric at its common parallel edges so as to leave elongated parallel semi-cylindrical voids therebetween. The voids are filled with gas sorbing materials.

Abstract: A deodorizing device for use in a pet's litter box, for example. The deodorizing device has a container body having an open end, a closed end and a cylindrical side wall defining a cavity therein. Chunks of zeolite are disposed within the cavity and retained within the container body by a sealing mechanism. The cylindrical side wall of the container body has a plurality of substantially uniform-sized apertures disposed thereon to permit exposure of the retained zeolite to the odors. A sealing mechanism may be permanently or releasably attached to the container body. A securing mechanism secures the deodorizing device to a structure within the malodorous environment. The zeolite after use can be recharged by exposing to fresh air, sunlight and heat and then reused. In addition to being used in a pet's litter box, the device can be used in many environments, including animal containment areas, living areas, production areas, food storage areas, work areas and automobiles.

Abstract: An air freshening device used in conjunction with an air circulation system of a business or residential building for impregnating the air with an aromatic scent. The device comprises a rectangular envelope made out of an air permeable synthetic mesh containing a plurality of aromatic beads. The envelope has a fastener at one corner. It is affixed to the internal conduit of the air circulation system, preferably to the main air filter for the system. As air passes through the air permeable envelope, the aromatic beads volatize, saturating the air with a fragrant scent. The air is then transferred throughout the building via the normal conduit or duct system.

Abstract: A filter apparatus for filtering chemical gases and odors from a fluid is disclosed. The filter apparatus includes a plurality of filter cartridges which each include a filter material, and a housing which fixes the filter cartridges relative to each other such that the filter cartridges form a W-shape with each filter cartridge forming a leg of the W-shape, to maximize the filtering efficiency of the filter apparatus while minimizing the pressure drop across the filter apparatus. A table top air cleaner is also disclosed,and includes a housing having an inlet opening and an outlet opening, an arrangement for drawing air through the inlet opening and for forcing air out of the outlet opening, and a plurality of filter cartridges which each include a filter material and which are fixed inside the housing relative to each other such that they form a W-shape.