Abstract: Filter media which may be used in ASHRAE applications are described. The media include a fiber web and has desirable performance characteristics.

Abstract: Foldable filter assemblies and methods of use thereof are disclosed. An air filter assembly including a frame having opposed substantially rigid end members and a flexible side member, the end members being connected to the flexible side member, and an air filter media connected to and disposed within the frame such that the frame is adapted to be disposed in a planar use position, and the end members of the frame are adapted to be moved toward each other prior to installation into the planar use position.

Abstract: A filter arrangement for filtering a fluid or gaseous medium, in particular in a motor vehicle, comprising a housing (1) which holds a filter element (3) in a receiving space (2), wherein the filter element (3) has an edge region (4) which bears at least in regions against the inner wall (5) of the housing (1), is characterized, with regard to the problem of creating a filter arrangement which is of structurally simple design and has a high filter efficiency, in that the housing (1) is shaped such that the receiving space (2) tapers at least in regions in at least one spatial direction.

Abstract: A dust collector has a vacuum coupling for connection to a vacuum source such as a portable vacuum cleaner or other suitable source. A vacuum reservoir is formed from a chamber between nested interlocking receptacles. A variable density pattern of inlet holes through one interlocking container into the vacuum reservoir provides better flow and capture of debris, while multiple inlets within the vacuum reservoir provide even and consistent suction. A variety of inlet geometries are presented that are suitable to a variety of purposes.

Abstract: The present invention provides filter units that, when joined together, allow joining portions thereof to be fixed together satisfactorily and can prevent air from leaking at the joining portions. A filter unit includes a filter medium that has been pleated and a frame that supports the circumference of the filter medium. The frame has a protruding part on at least one face selected from an upper face and a lower face thereof, with the protruding part being formed by allowing a part of the at least one face to protrude. The upper face is a surface of the frame that faces the upstream side relative to the flow of air that passes through the filter medium, and the lower face is a surface of the frame that faces the downstream side relative to the flow of air.

Abstract: A filter element, consisting of two pleated filter cloths has side frame members or strips and top and bottom frame members. The top and bottom edges of the cloths are encapsulated in the frame members, and the side edges of the filter cloths are clamped by the side frame members. This may be done by molding the frame members onto the cloth side edges, or by providing a slot in a tubular side frame member within which the side edges are held against the inner face of the slotted wall of the tube by a clamping member, such as a U-shaped strip, or by an indented part of the opposed wall.

Abstract: A filter system for an air cleaner is provided according to an embodiment of the invention. The filter system includes a filter frame adapted to fit within the air cleaner and a filter assembly configured to fit to the frame. The filter assembly includes a top aperture and one or more filter panels. A filter panel of the one or more filter panels includes one or more panel edges and one or more interlocking tabs formed on the one or more panel edges.

Abstract: The air-cleaner includes a housing. The air-cleaner includes a filter element located in the housing to filter air taken into the housing. The air-cleaner includes an adsorption element for adsorbing vaporized fuel flowing into the housing. The housing includes first and second housing components having open ends put on each other. The filter element is held between the first and second housing components, separating the housing into a clean side and a dust side. The adsorption element includes a frame at the periphery; and an adsorption portion located inside the frame. One of the first and second housing components as the clean side has an inner side back in the open end, the inner side having a mounting portion having the adsorption element mounted thereto. The mounting portion includes the adsorption element; and a support member placed thereon.

Abstract: A gas port assembly is provided for supplying or removing one or more gases to a powered electrode in a plasma processing chamber. The chamber has at least one electrode (11) to which an alternating electrical potential is applied in use, the assembly being electrically insulated from the electrode(s). The assembly comprises, a number of dielectric members (15) and a number of electrically conductive members (16). The members are arranged in a stack of alternating dielectric and electrically conductive members. Each member comprises at least one gas pathway for the passage of the gas(es), such that when stacked, the gas pathways are in communication with each other and the gas(es) are able to pass between an outer side of the stack and a chamber side of the stack. The members act as a capacitive divider to reduce high voltages within the assembly.

Abstract: A filter assembly for use in a cleaning appliance has filter portion and a rim surrounding the filter portion. The rim is deformable so as to be capable of sealing against a part of an appliance in which the filter assembly is located. The rim is arranged to include a locating member adapted to prevent incorrect orientation of the filter assembly in an appliance housing. The rim is flexible and capable of being manipulated and flexed by a user during a process of locating the filter assembly in an appliance.

Abstract: A housing includes a wall having an aperture and a vented panel, the vented panel including a first wall having a first side and a second side and an opening, a second wall having a first side, a second side facing the first wall first side and an opening, and a panel interior, the housing further including an air filter having an inner side and an outer side relative to the interior mounted against the second wall first side over the second wall opening with the filter inner side facing the housing interior, a water dam mounted along the filter bottom portion at the filter inner side, the water dam being higher than any water barrier mounted along the filter bottom portion outer side, whereby, any water reaching the filter bottom is substantially prevented from draining into the housing interior. Also an air filter usable in the housing.

Abstract: A disposable air filter sub-assembly that includes: (a) air filtration media; (b) a substantially planar air filter frame providing three-dimensional support for the air filtration media; and (c) an air filter frame-connecting means integrated into the air filter frame. The integrated air filter frame-connecting means are adapted to connect a plurality of identical air filter sub-assemblies into an air filter assembly with sufficient structural strength in at least one direction such that the air filter sub-assemblies resists separation when the air filter assembly is extracted from the filter track of a filter bank.

Abstract: A method of removing moisture from inlet air flowing to a gas turbine. The method comprises the steps of providing a housing for supporting a primary air filter. The housing is operably connected with the gas turbine. A hood connected with the housing is provided. The hood has a surface disposed at an acute angle relative to horizontal. Inlet air flow is directed into a preliminary filter supported above the hood and extending in a downward direction. The preliminary filter comprises media capable of separating moisture from the inlet air flowing through the preliminary filter at an exterior portion of the preliminary filter. Separated moisture agglomerates into a drop incapable of being carried by the flow of inlet air so the drop falls onto the hood to be directed out of the flow of inlet air.

Abstract: A transduction-protection device for protecting medical apparatus from contamination by infectious agents comprises a containment body having an inlet destined to be set in fluid communication with an extracorporeal circuit of blood, and an outlet destined to be connected to a fluid line operatively connected to a pressure gauge of a medical apparatus. The inlet is in gas communication with the outlet across an internal cavity of the containment body. Two hydrophobic membranes are predisposed in the containment body between the inlet and the outlet. The membranes each define an anticontamination barrier which is gas-permeable. The device transmits the pressure of the extracorporeal circuit to the pressure gauge, with no relevant loss of head, while at the same time protecting, with a high degree of security, the medical apparatus from risks of contamination by pathogens originating in the extracorporeal circuit.

Abstract: A fuel adsorbent member 16 is arranged in a housing 11 at a position downstream from a filter element 14. The fuel adsorbent member 16 adsorbs evaporative fuel. An air cleaner is configured in such a manner that, when receiving a backfire pressure P1 from an engine, the fuel adsorbent member 16 is held in the state secured to the housing 11. Specifically, release holes 22 are defined in a portion of the fuel adsorbent member 16 for releasing the backfire pressure P1 through the release holes 22.

Abstract: A retrofit installation kit for use with such as an exteriorly located air conditioner condensing unit. The kit includes a flexible filtration screen and a set of customized fasteners which substitute for existing fasteners used to hold together the outer sheathing of the unit frame. The substitution of fasteners for the typical mounting screws utilized in the original unit construction precludes the possibility of such as damaging the unit due to drilling new fastener holes, this running the risk of rupturing fluid coils within the unit, or damaging other sensitive electrical or mechanical components.

Abstract: A grill and filter assembly having a replaceable filter element includes a rectangular frame assembly, grill insert and a filter. The rectangular frame assembly has an outer frame forming a face and an outwardly extending wall extension. The grill insert has a plurality of louvers and an outwardly extending filter housing. It also includes a plurality of flanges extending inwardly from the filter housing to a depth of no greater than the thickness of standard drywall. The filter assembly includes a loop covered with a fabric filter material. The loop is capable of flexure and the filter is inserted within the filter housing and under the flanges. A plurality of magnets are attached to the wall extension and located to magnetically hold the grill insert within the frame assembly. The flanges and filter housing are structurally adapted to allow the filter to be flexed and slid from under the flanges to remove it from the grill insert.

Abstract: A filter pack includes filter media formed into a filter structure having a front, a back and at least one side surface; and a frame adhered to the at least one side surface and comprising an adhesive and an adhesive carrier. The adhesive carrier can be a sheet of material which can be impregnated with the adhesive, one example being a sheet of the filter material itself. The adhesive carrier can alternatively be a single use tray mold for holding the adhesive while it cures, and which is left into the final product.

Abstract: An air filter element partially-fabricated on site wherein one or more wire frames are fastened to one another to form a structure substantially conforming to the dimensions of the original equipment manufacturer's filter housing. One or more of the wire frames are flexibly attached to each other end-to-end by flexible attachment means, allowing the assembled filter unit to be inserted into the filter housing one frame at a time, with the frame sections yet to be inserted folded or directed off to one side, thus bypassing space restrictions. Flexible attachment means may comprise spring connectors. Also disclosed is an end-cap affixed to or formed at one or both ends of the filter element. The end-caps may also contain printed material, such as text or pictures, which may include instructions for use, identifying labels or symbols, or the like.

Abstract: A system is disclosed for a plate-shaped filter element (2) in a gas filter housing (1). The filter element (2) has filter material (3), which is folded in a zigzag shape, having filter folds closed at the front edges, and the closure (4) being made of essentially the same filter material which forms the filter folds, and having an edge area (5) projecting outward on both sides, and in which the two edge areas (5) are inserted into the housing (1) having insert struts (7), on the sides assigned to the end folds of he plate-shaped filter element (2), which engage the end folds (8) and ensure a leakage air rate of 0 to 4 m3/h at a differential pressure of at least 200 Pa.

Abstract: A panel filter frame and panel filter are provided. The panel filter frame is made from a one-piece die-cut blank of material. The die-cut blank includes a grill portion, four sidewall portions and four flap portions all integrally connected. Individual sidewall portions are interposed between a side of the grill portion and one of the four flap portions. The plurality of portions of the die-cut blank are interconnected at fold lines. The frame is formed when the die-cut blank is folded about the fold lines and the portions are secured in the folded position by at least a plurality of interlock receptacles formed in the terminating folded portion of the die-cut blank.

Abstract: A dirt separator may be retrofit into existing gas turbine engines since it is formed of circumferentially separate pieces which may be assembled together in the gas turbine engine.

Abstract: The transducer-protector device for medical apparatus comprises a housing formed by two half-shells, a membrane defining a gas-permeable anti-contamination barrier, a female Luer first connection port, a second connection port for connection to a flexible tube, a helical bellows-conformed deformable member. The device, which operates in a service line of an extracorporeal blood circuit associated to a dialysis machine, is for protecting the machine from contaminating agents originating from the circuit. The device is simple and economical to manufacture.

Abstract: The invention provides an air filter with an integral rigid edge. The filter uses a pre-cut sheet of non-woven synthetic filter material. The sheet has a generally rectangular central portion and four outwardly extending side portions. Each side portion is compressed to make it thinner, denser and more rigid than the central portion. The side portions are rolled or folded upon themselves toward the central portion to form a rigid edge around at least a part of the central portion. A method for making the air filter is also provided.

Abstract: A filter for placement above a supply vent grill in an air conditioning supply vent includes a peripheral frame that is sized and configured to match the interior dimensions of the air vent. The filter has at least one layer of a woven stainless steel hygienic mesh cloth that is held taut within the frame. The hygienic stainless steel mesh membrane traps dirt, dust, dust mites, germs, bacteria, mold, fungus and other particles and microbes that are carried in the airflow of the air conditioning duct system. Accordingly, the cool air exiting the supply vents and into the indoor living environment is free of these unhealthy and potentially harmful microbes and airborne particles.

Abstract: A frame mounted to the bottom opening of an air duct for supporting a variety of interchangeable air control devices. The frame has a top section with a central opening that permanently mounts to and surrounds the perimeter of the bottom opening of an air duct, and a bottom section which is foldably connected to the top section. The bottom section connects to the top section by means of a hinge joint at one end and a latching mechanism at the other, which together removably holds the bottom section to the top section in a folded and closed position. The bottom section has an interior stepped portion for removably securing an interchangeable air control device. When released, the bottom section swings downward into an open position to allow easy access to the interchangeable air control device.

Abstract: A filter element includes a filter web pleated in an essentially zigzag manner and made, in particular, of a nonwoven material, for insertion into a holder such as a filter frame and/or a filter housing, having at least one end-positioned wall of an essentially flat design. The filter element includes at least one end face, viewed in the direction of the pleats. To achieve a tighter seal, the end face of the filter element is curved outward in a defined convex manner, and the filter web material is selected and/or its end face conditioned so that, when inserted into the holder, the end face of the filter web may be placed leak-tight against the end wall of the holder without corrugation under elastic pre-tension.

Abstract: A cover member adapted to confine gaseous emissions from animal waste in a waste collection area having a base for contacting and floating on at least a portion of a surface of the animal waste and a cover with at least one surface extending from the base. The cover member can include a buoyant frame to define a generally pyramid shape. The cover includes a layer of geotextile material and can include organic filter material with the internal volume of the cover member. A plurality of cover members can be closely aligned to cover a substantial portion of the surface of the animal waste.

Abstract: An axial flow filter element having alternating flat and pleated layers of fluid permeable filter media which form channels with an open cross section, one end of a first group of channels and the other end of a second group of channels being tightly sealed such that fluid being filtered must pass through one of the filter layers to pass through the filter element, a peripheral seal for sealing the inflow side of the filter from the outflow side in a housing, and a support body arranged in the filter element surrounded by the channels and extending axially at least to one end face of the filter element; at least one end face of the filter element having a spacer for maintaining the end face at a distance from a supporting surface on which the filter element may be placed during handling to prevent direct contact between the end face and the supporting surface.

Abstract: An air cleaner is provided with a housing, a filter element disposed inside the housing for filtrating air introduced into the housing, and an adsorption element disposed in the housing for adsorbing gasified fuel in the housing, the adsorption element including an adsorbing member adsorbing gasified fuel and a frame surrounding the adsorbing member to hold the adsorbing member. The air cleaner further includes a plurality of first fusing projections projecting from one surface of the frame, a plurality of ribs formed to an inner surface of the housing so as to project therefrom and extending laterally and transversely to cross each other, and a plurality of second fusing projections formed to the inner surface of the housing at positions corresponding to the location of the first fusing projections formed to the frame of the adsorption element, each of the second projections being surrounded by a pair of crossing ribs.

Abstract: A deep format filter element has a peripheral frame with outwardly protruding mounting flanges. The mounting flanges simulate the periphery of a shallow format filter element to allow the deep format filter element to replace the shallow format filter element in many situations.

Abstract: A filter assembly configured to be incorporated into an exhaust treatment device, the filter assembly comprising: a plurality of channel frames secured to each other, each channel frame defining a perimeter for supporting a filter element, the perimeter surrounding a portion of the filter element.

Abstract: A filter system extracts particles and/or drops of liquid from air flowing through the filter system. The filter system has a filter layer disposed in a plane and a cyclone collector that is disposed in the edge region of the filter layer. The cyclone collector is provided with a device which, compared with the filter layer, creates a higher flow speed and stronger vortexing of the circulating air. The cyclone collector can be produced from horizontal cyclone elements, curved, horizontal elements or from expanded metal.

Abstract: A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used.

Abstract: An exhaust aftertreatment filter has a pre-stressed layer bonded to the filter body at the outer periphery and compressively axially pre-stressed in an opposite axial direction to separational axial tensile stress to counteract the latter during regenerative heating, to minimize separational fracture and cracking.

Abstract: A screen assembly, associated kit and method of forming the same. The screen assembly is adapted to filter intake air passing through an exterior surface of an air processing unit, and includes a substantially rectilinear screen mesh having opposing top and bottom edges, opposing proximal and distal edges, and top and bottom contact surfaces which laterally extend along the respective extents of the top and bottom edges. The screen mesh is formed from a plurality of transversely aligned, spaced apart filaments arranged to filter contaminants from the inlet air. Opposing first and second attachment members respectively secure the proximal and distal edges to the exterior surface so as to apply a tension force to the screen mesh which seals the top and bottom contact surfaces in direct contacting abutment against the exterior surface, thereby eliminating the need for one or more mechanical fasteners along the top and bottom edges.

Abstract: A housing 11 accommodates a pleated filter element 14. A fuel adsorbent member 16 is arranged in the housing 11 at a position downstream from the filter element 14. The fuel adsorbent member 16 adsorbs evaporative fuel leaking from an engine. The fuel adsorbent member 16 includes holding pleats 16g. Each of the holding pleats 16g is received in the space between an adjacent pair of the element pleats 14a of the filter element 14. This maintains the interval between the element pleats 14a. The holding pleats 16g are formed by folding the fuel adsorbent member 16.

Abstract: An assembly for installation in a refrigerator provides comprises an enclosure for conducting service lines therethrough and an air filter unit mounted to the enclosure. The air filter unit includes an air filter housing that contains an air filter and includes openings for the ingress of air from the refrigerator which, after passing through the air filter, is discharged to the refrigerator interior through discharge openings in the air filter housing. Means such as a fan is provided to establish a flow of air through the air filter housing. The air filter unit has utility separately from the enclosure for conducting service lines in which case the air filter housing includes first and second portions that are pivotally connected to one another. The air filter within the air filter housing is supported by one of the first and second portions of the air filter housing.

Abstract: A filtration device adapted for adjustably interlocking with adjacent filtration devices in a filter bank, wherein inversely disposed flaps on opposing sidewalls, such us an upper flap disposed along a first sidewall and a lower flap disposed along an opposing sidewall, overlap to interlock and prevent air flow between adjacent filters. Each flap may comprise a single member, or may include multiple folded sections, and may be color coded or provided with installation instructions, may be manufactured integrally with an air filter frame, or may be formed separately and adhered to the frame prior to filter installation, and a flap may also include an adhesive for adhering interlocking flaps together.

Abstract: A filter element, and filter apparatus, include a filter pack, a seal member, and a seal support frame operatively connecting the seal member to the filter pack. The seal support frame includes an annular extension, which is preferably canted at an oblique angle to a longitudinal axis, for supporting the seal member. The seal support frame also preferably includes a first end thereof including the annular extension, and a second end thereof spaced from the first end thereof along the longitudinal axis, with the first and second ends of the seal support frame joined by a hub of the outer peripheral sidewall of the seal support frame to define a cavity within the seal support frame for receiving the filter pack. The first and second ends of the seal support frame, and the filter pack are preferably joined and sealed to one another by a single bead of adhesive.

Abstract: A nestable frame for planar air filters or other screen-like planar structures. The nestable frame provides all of the following desirable properties at once: 1. Simple manufacturing and assembly process, 2. Simple design, 3. Enhanced structural rigidity, 4. Significant space-savings during storage and transport, and 5. Simple handling. Preferably, the filter frame comprises an upper and a lower frame portion with a first leg each, where the peripheral edge of the filter media is clampingly engaged between the first leg of the upper frame portion and the first leg of the lower frame portion. From the first leg, the upper frame portion extends outwardly with at least two legs folded into a vertically flipped V. The lower frame portion may or may not have one additional second leg extending outwardly from the first leg, in parallel direction and intimately connected to the second leg of the upper frame portion.

Abstract: A fluid filter is provided with a snap-together housing for the filter media. The housing is designed with two main parts that are easily snapped together to encapsulate the filter media. The filter housing is substantially cylindrical, and contains an inlet on one end of the filter and an outlet on the opposing end. The filter can be designed so as to be opened for the replacement of the filter media.

Abstract: The invention is related to a framed filter media comprising a pleated filter media having a fluid inlet face and a fluid outlet face with peripheral sidewalls. The peripheral sidewalls of the pleated filter are attached to the frame generally by an adhesive. The frame is preferably a flexible strip frame formed into three or more (up to an infinite number if the sidewall sections(s) is formed into a circular filter frame) sidewall sections each having a substantially flat sidewall and at least two projecting filter retaining tabs which form a flange on a first face of the sidewall section for containing the filter along its peripheral sidewalls and any adhesive. A cross brace is also inserted within the filter retaining tabs which fits into at least one pleat of the framed pleated filter media. The cross brace fits into the space formed by the pleated filter media but is not in continuous contact with the filter media forming the pleat.

Abstract: A fluid pleated filter assembly arrangement including a method and structure wherein crests of the pleated medium are sharp and narrow being enhanced by alignment of the fibers with the direction of fluid stream flow with the crests being supported by a preselectively controlled breadth and thickness support strip and adhesive fastening band disposed intermediate opposed side edges of the support strip.

Abstract: A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end portion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.

Abstract: A filter is provided by a panel filter element having a perimeter gasket having sealing planes axially between inlet and outlet axial ends of the panel filter element and having a merge point with the panel filter element axially between the sealing planes.

Abstract: A device for protecting medical apparatus from contamination by infectious agents comprises a containment body having an inlet destined to be set in fluid communication with an extracorporeal circuit of blood, and an outlet destined to be connected to a fluid line operatively connected to a pressure gauge of a medical apparatus. The inlet is in gas communication with the outlet across an internal cavity of the containment body. Two hydrophobic membranes are predisposed in the containment body between the inlet and the outlet. The membranes each define an anticontamination barrier which is gas-permeable. The device transmits the pressure of the extracorporeal circuit to the pressure gauge, with no relevant loss of head, while at the same time protecting, with a high degree of security, the medical apparatus from risks of contamination by pathogens originating in the extracorporeal circuit.

Abstract: A particulate trap has a plurality of filters and an air distributor. The air distributor has an inner tube and an outer tube. Each of the inner and outer tubes have a plurality of openings to allow exhaust flow to the plurality of filters. One of the inner and outer tubes is rotatable to selectively block exhaust flow to at least one of the plurality of filters at a given time.

Abstract: A filter protection apparatus includes a frame of a closed curve defining an inner space isolated from surroundings, the frame having a shape of a filter securing part for securing an air filter, an attaching part for attaching the frame to a filter securing part, and a protection part, which is coupled on the inner surface of the frame to occupy the inner space with a plurality of minute holes through which air passes, for protecting the filter from damage. In operation, the protection part is able to prevent damage to the filter that may be caused by work instruments during maintenance work.

Abstract: A cartridge filter includes a folded package including filter material and a frame holding the folded package. The frame includes a plurality of profiled strips having identical profiles, and each having two ends. The frame also includes a plurality of corner joints, each disposed at an end of a respective profiled strip. Each corner joint includes an end cap for engaging pair wise with an end cap of an adjacent one of the plurality of corner pieces.