Abstract: A pleated air filter media is provided. The pleated air filter media comprises a plurality of upstream linear bridging filaments that are extrusion-bonded to at least some of a plurality of upstream pleat tips of a fibrous web, and a plurality of downstream continuous-contact filaments that are extrusion-bonded to a downstream face of the fibrous web. Methods of making and using the same are also provided.

Abstract: A spliceable and foldable filter element device is provided, which includes a quadrilateral filter element body made of a flexible material. The quadrilateral filter element body is a folding layer having vertical folds. A left frame body and a right frame body are respectively disposed on a left side and a right side of the quadrilateral filter element body, at least one clamping rod is arranged between the left frame body and the right frame body, the clamping rod comprises three or more clamping teeth, the clamping teeth correspond to the folding layer in position, and the clamping rod is clamped with the folding layer through the clamping teeth. The spliceable and foldable filter element device has the advantages of simple structure, low cost, foldability, flexible use, convenience, easy storage and transportation.

Abstract: An air filtration system includes a frame directing an airflow through the air filtration system and a media filter disposed in the frame including one or more filtration elements. The system further includes one or more alignment features and one or more sealing elements interactive with the one or more alignment features to prevent incorrect installation of the media filter into the frame. A method of installing a media filter in an air filtration system includes aligning an alignment feature of the media filter with an opening in a frame of the air filtration system and inserting the media filter into the frame. The alignment feature ensures that the media filter is inserted in the frame in a correct orientation.

Abstract: Systems and methods of filtering with filter assemblies including a frame having a header structure, an end cap structure, and a plurality of side plates coupling the header structure to the end cap structure are provided. The filter pleated media may include an upstream surface and a downstream surface opposite the upstream surface in a direction of flow through the filter assembly, and the filter pleated media may include a pleated configuration. The filter assemblies may further include a support member coupled to a portion of the frame and along at least one of the upstream surface or the downstream surface of the filter pleated media. The support member may at least partially penetrate the pleated configuration and extend into a pleat of the pleated configuration of the filter pleat media.

Abstract: A filter element for an air filter assembly of an engine includes a primary filter media and a secondary filter media. The primary filter media has a plurality of pleats having first fold edges on an inlet face of the primary filter media and second fold edges on an outlet face of the primary filter media. The first and second fold edges extend from a first lateral side to a second lateral side of the primary filter media. The secondary filter media is constructed of a non-woven material and includes a first portion arranged on the inlet face of the primary filter media, a second portion secured to the first lateral side of the primary filter media, and a third portion secured to the second lateral side of the primary filter media.

Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.

Abstract: A flexible sheet collects overspray and keeps spray booth environments clean, thereby reducing or eliminating dust and foreign matter from landing on wet painted surfaces which might otherwise result in a paint surface defect. The flexible sheet comprises a woven or non-woven mesh or net material having apertures or perforations that penetrate through the sheet. The sheet is impregnated with a tacky substance, such that paint overspray and dirt particles cling to the impregnated sheet. In the preferred embodiment, the tacky substance is a wax-based substance, more preferably a natural or synthetic beeswax-based substance. The material may be made from polymeric filaments of nylon or other natural or synthetic fibers, threads or strands. The flexible sheet of material may be provided in roll form for use. Method of making a tacky netting are also disclosed. The product is particularly useful in vehicle spray-booth applications.

Abstract: A filter element (10) is provided with open filter body (16) of a filter medium (18). The filter element (10) has at least one longitudinal mating surface (40) which is directed with at least one direction component axially to an element axis (14) of the filter element (10) and which is in contact with a corresponding longitudinal mating surface of the filter housing (11) for securing the filter element (10) axially to the element axis (14). The filter element (10) has at least one transverse retaining surface (52) which is directed with at least one direction component across the element axis (14). The transverse retaining surface (52) is separated from the at least one longitudinal retaining surface (40) and may be in contact with a corresponding transverse mating surface (56) of the filter housing (11) for securing the filter element (10) across the element axis (14).

Abstract: A filter element has a filter medium body with a first side and an oppositely positioned second side. A first sealing or supporting element is arranged at the first side. A second sealing or supporting element is arranged at the second side. The first side is positioned in a plane. The second side has a first section and a second section, wherein the first section has a first spacing relative to the first side and the second section has a second spacing relative to the first side, wherein the first and second spacings are different. One of the first and second sides is the inflow side of the filter medium body and the other one of the first and second sides is the outflow side of the filter medium body.

Abstract: An emissions control substrate. The emissions control substrate includes a first end in receipt of exhaust from an engine, and a second end from which exhaust exits the substrate. The second end is opposite to the first end. A plurality of channels are defined by sidewalls. The channels are arranged between the first end and the second end to direct exhaust from the engine through the emissions control substrate. The sidewalls at least one of filter and treat exhaust particulates as the exhaust passes through the sidewalls. The plurality of channels include at least one first channel defined by sidewalls that curve inward along lengths thereof from the first end to the second end.

Abstract: A filter element, including: a first filter medium body having an outflow side and an inflow side; a second filter medium body having an outflow side and an inflow side; wherein the filter element has a longitudinal axis; wherein the first and second filter elements are configured both install into and share in common a filter element housing in which the filter medium bodies delimit a shared common clean space from which the purified fluid is to be discharged via at least one outflow opening; wherein the first filter medium body and the second filter medium body have different sizes and/or different shapes and/or different angular positions of the outflow sides adjoining the clean space.

Abstract: A filter element for a filter device for gas filtration has at least two individual filters which are disposed adjacent to each other and through which the gas to be purified can flow orthogonally to the filter plane. On at least two sides, the individual filters delimit a gas collection chamber that is open on the edge side and that is fluidically connected to the clean sides of the individual filters and used to accommodate the purified gas.

Abstract: A method form forming fluted filtration media is provided. The method includes forming fluted filtration media having a repeating pattern of flutes wherein at least one flute in the repeating pattern of flutes comprises at least one ridge in a flute period between adjacent same side peaks. The repeating pattern of flutes can comprise at least one flute having at least two ridges provided in a flute period between adjacent same side peaks. An apparatus for forming fluted filtration media is provided.

Abstract: A filtration system includes a frame directing a fluid flow through the filtration system. An ionization array is located in the frame and has an ionizer current flowing therethrough. The system further includes a media filter having a plurality of media fibers arranged to capture particles flowing therethrough and a conductive surface located at the media filter and having a filter current flowing therethrough. A comparator is utilized to determine a difference between the ionizer current and the filter current, and compare that difference to a predetermined range.

Abstract: An air treatment system having an improved control system. The control system may include a dynamic “dead front” display that varies the display based on mode of operation. The display may include capacitive touch sensors and include an array of capacitive film segments or traces integrated into the display. The control system may include a self-contained electronics module that can be tested and calibrated before installation in the ATS. A dust sensor assembly may be integrated into the electronics module. The front cover may be attached with a mechanical attachment at the top and a magnetic attachment on the bottom. The ATS may include a filter retainer assembly with a rotating clip configured to perform in a cam-like manner to firmly clamp the particulate filter and carbon filter in place.

Abstract: An air filter may include a bellows made of an air-permeable filter medium, which is folded in a longitudinal direction to form a plurality of folds, for filtering air, and a supporting frame for supporting the bellows. The supporting frame may be a substantially closed comb-like ring having a plurality of supporting teeth. At least two supporting teeth adjacent in the longitudinal direction may fix at least two folds of the bellows also adjacent in the longitudinal direction to a predefined distance from each other. The comb-like ring may include two fold blades and two outer bands connecting the fold blades. The fold blades may be inserted in a transverse direction running transversely to the longitudinal direction into respective end folds of the bellows. The two outer bands may have the supporting teeth, including high supporting teeth and low supporting teeth.

Abstract: A wet scrubber 1 with a low energy requirement, i.e. with reduced throughflow resistance has a demister 5, whose filter package 25 is shaped corrugated or folded. This makes a large surface available to ensure reliable soaking of the inflowing dust. Further advantages are a sloping bottom plate 15 in the demister part housing 4, specially positioned and designed moistening nozzles 6, 7 as well as above all a partitioning of the demister 5 into several complete packages 31, 33.

Abstract: Air cleaner assemblies and components therefor are described. An example first or main filter cartridge is described which includes a media pack comprising strips of fluted material secured to facing sheets, oriented in a stack. The media pack defines opposite inlet and outlet flow faces, with flutes extending in a direction therebetween. The media pack is non-removably secured within a filter cartridge housing, at a location between opposite sections of a shell, typically secured thereto with an adhesive. The shell also defines a closed end, spaced from, but in overlap with, the outlet end face of the media pack. The closed end is typically curved and the shell typically provides either a d/b-shape or a u-shape. The filter includes an end member, with a outlet flow aperture arrangement therein, allowing for outlet flow from the filter cartridge in a general direction orthogonal to air flow through the media pack.

Abstract: An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.

Abstract: An apparatus and method for filtering air in residential and commercial applications is described herein. The air filter may have a support frame which secures to the intake grille of an HVAC system. A filter media may be placed in the support frame to filter air as it passes through the air filter. The filter media may be replaced when the filter media becomes too dirty to effectively filter air. The dirty filter media may be removed from the frame and a new clean media may be replaced in the frame.

Abstract: A filter frame assembly is disclosed comprising a perimeter member surrounding a fluid aperture adapted to accommodate a fluid flow from an upstream direction to a downstream direction, the perimeter member comprising a perimeter upstream surface, a perimeter downstream surface, and a perimeter outer surface connecting the perimeter upstream surface to the perimeter downstream surface. A gasket carrier is attached to the perimeter member and comprises a carrier outer portion facing generally away from the fluid aperture and a first outer portion sealing member projecting from the carrier outer portion.

Abstract: A framed air filter and method of making. The framed air filter includes a non-self-supporting air filter media with a generally rectangular perimeter with four major edges, a support frame comprised of four support frame portions each portion being mounted on one of the four major edges of the non-self-supporting air filter media, and a support grill that is attached to each of the four portions of the support frame but that is not integral with any portion of the support frame.

Abstract: Proposed are a filter assembly and a filtering system having the same. The filter assembly of the present invention is characterized in that it comprises a first pleated part formed from zigzag-type pleats continuously formed thereon; a second pleated part having zigzag-type pleats continuously formed thereon and being connected adjacently to said first pleated part, said second pleated part being formed with a height lower than that of said first pleated part so as to provide a seating place; a pair of end strips connected to the two ends of the first pleated part and the second pleated part along the length of the pleat; and a diffusion member which is seated in the seating place, and in that the flow of air that is filtered through the second pleated part passes through the diffusion member.

Abstract: A filter element may include a first end disc, a second end disc, a filter medium arranged between the first and second end discs, wherein the first and second end discs are spaced by a filter medium. A third end disc may connect the first and second end discs and be arranged obliquely to at least one of the first end disc and the second end disc. The third end disc may include at least one of an inlet and outlet.

Abstract: A filter for fluid, in particular an air filter, in particular for an internal combustion engine, in particular in a motor vehicle, a filter housing (11) of a filter and a filter element (10), in particular a flat filter element of a filter are described. The filter housing (11) has at least one inlet and at least one outlet for the fluid. The filter element (10) with open filter bellows (16) made of a filter medium (18) that has an oncoming flow side (28) and an outgoing flow side (30) for the fluid to be filtered in the filter housing (11) in such a way that it separates the at least one inlet from the at least one outlet. The filter element (10) comprises at least one longitudinal mating surface (40) which is directed with at least one direction component axially to an element axis (14) of the filter element (10) and which is in contact with a corresponding longitudinal mating surface of the filter housing (11) for securing the filter element (10) axially to the element axis (14).

Abstract: An apparatus and method for filtering air in residential and commercial applications is described herein. The air filter may have a support frame which secures to the intake grille of an HVAC system. A filter media may be placed in the support frame to filter air as it passes through the air filter. The filter media may be replaced when the filter media becomes too dirty to effectively filter air. The dirty filter media may be removed from the frame and a new clean media may be replaced in the frame.

Abstract: The present invention is directed, in part, to air filtration media, air filtration media packs, air filtration elements, and methods of making air filtration media, media packs, and filtration elements. The air filtration media typically has a fiber composition that is primarily cellulose fibers, the media having a low solidity and low basis weight and being suitable for forming of structured flutes into the media. In certain embodiments a resin is added such as a solvent based resin.

Abstract: A method for air filtration having a plurality of interlocking filters for use in an HVAC system or in other air filtration systems. Each interlocking filter can have a pleated filter media, a first frame, a second frame for supporting the first frame, an adhesive to connecting the pleated filter media to the first frame and the first frame to the second frame, and a one piece non-rigid flexible integral locking mechanism for connecting together the interlocking filters without clips or glue in a quick connect and quick disconnect manner.

Abstract: A system for air filtration having a plurality of interlocking filters for use in an HVAC system or other air filtration systems. Each interlocking filter can have a pleated filter media, a first frame, a second frame for supporting the first frame, an adhesive to connecting the pleated filter media to the first frame and the first frame to the second frame, and a one piece non-rigid flexible integral locking mechanism for connecting together the interlocking filters without clips or glue in a quick connect and quick disconnect manner.

Abstract: An air filter element is provided with an anti-crown support grid on a clean side of the filter media. The support grid includes one or more elongated mounting members provided along periphery portions of the grid and at least one support rib spanning between and secured at opposing ends to the mounting members. The mounting members are embedded within a peripheral seal frame. The support grid may include at least one alignment feature sized, configured and positioned to be receivable into a complimentary feature of a housing so as to positionally lock the filter element and the housing.

Abstract: A filter element includes a filter member provided with a plurality of pleat portions and a frame body holding an outer peripheral portion of the filter member. The frame body is provided with a comb-shaped portion having a comb-tooth portion which is inserted into adjacent pleat portions and contacts to a surface of the filter member, and the comb-shaped member is formed by an insert-molding process.

Abstract: An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securing the filter cartridge in that location. Preferred serviceable filter cartridges are provided, as well as methods of assembly and use.

Abstract: A filter element includes: a filter member formed of a non-woven fabric formed by laminating a plurality of non-woven fabric layers and folding the thus formed non-woven fabric in form of pleat having a predetermined size along a width direction of the filter member; a holder frame formed of a soft material and disposed along an outer peripheral edge of the filter member, the holder frame being constituted by first and second frame members; and a reinforcing member having one end connected to the first frame member disposed along the width direction of the holder frame and having another end formed as a free end free from connection. The reinforcing member extends so as to intersect the width direction of the filter member.

Abstract: A panel filter is provided. The panel filter can have extended life by virtue of more filter media packed into a panel filter in a way that maintains open flow structure and with filter media selection that does not cause undue restriction.

Abstract: An air filter cartridge is provided including an air filter media construction having a first, outlet end, flow face and an opposite, second, inlet end, flow face. The filter media construction has fluted media secured to a facing media sheet. The filter media is closed to flow of unfiltered air completely therethrough. A centerboard is provided. The centerboard has a media portion embedded within the media construction. The centerboard has first and second opposite sides. The media portion that is embedded within the media defines an aperture arrangement extending completely through the centerboard from the first side to the second side. An adhering sealant secures the centerboard to the media construction. At least some adhering sealant extends through the aperture arrangement.

Abstract: An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.

Abstract: A framed air filter and method of making. The framed air filter includes a non-self-supporting air filter media with a generally rectangular perimeter with four major edges, a support frame comprised of four support frame portions each portion being mounted on one of the four major edges of the non-self-supporting air filter media, and a support grill that is attached to each of the four portions of the support frame but that is not integral with any portion of the support frame.

Abstract: A two stage filter device includes a cyclonic pre-separator (10) designed as a pre-filter that separates the particles from the gas flow and a main filter element (20) arranged downstream as a second stage operable to filter by guiding the particles through at least one filter medium (24). The main filter element (20) is received in a filter housing (30). The main filter element (20) includes at least one retaining element (22) for stabilizing the position of the main filter element (20) in the housing (30).

Abstract: A filter cartridge arrangement is provided which includes a media pack comprising Z-filter media, a preform and a housing seal member. Improvements in the preform and seal member are described which include: a single beveled surface of the seal member to facilitate installation; and, an inside region of the seal member having a tip adjacent in inwardly directed lip of the preform, to control flash during molding. A variety of media pack configurations and features are described.

Abstract: An air filter and frame that cooperate to require alignment of the filter in a desired orientation in order for insertion to occur. At least one edge of the filter is offset from a right angle relative to other edges and the faces of the filter, and an obstruction is formed in the frame so that the filter can be inserted into the frame in only the desired orientation. Preferably two opposing edges of the frame are angled, and obstructions, such as small rails, are mounted in opposing sidewalls of the frame.

Abstract: A panel filter including a generally rectangular border frame having four sides; a filter media supported by the border frame and extending within the border frame; and a key formed into the border frame is provided. The key is used to properly determine if the filter is appropriate for mounting in a housing. It may also be used for properly orienting the filter within the housing. A system including the housing is also provided. Methods of providing biosecurity for animal confinements are also provided.

Abstract: A panel filter including a pleated filter media, a frame and a screen is provided. The pleated filter media is supported by the frame which is a one-piece die cut frame or a two-piece die cut frame with integrally formed webbing and border. The pleated filter media is further supported by the screen on one or both sides.

Abstract: A panel filter including a pleated filter media, a frame and a screen is provided. The pleated filter media is supported by the frame which is a one piece die cut frame or a two-piece die cut frame with integrally formed webbing and border. The pleated filter media is further supported by the screen on one or both sides.

Abstract: A three-dimensional filter includes a filter frame having a three-dimensional skeletal structure with a filter media connected to the skeletal structure. The filters are nestable. The skeletal structure may be trimmed and provided with walls to create standard sized filters. Methods for making the three-dimensional filter include injection molding of the skeletal structure onto the filter media, injection molding the filter media and the filter frame together in a single molding process, thermoforming a molded or extruded skeletal structure and the filter media, and needle punching a molded or extruded skeletal structure to create filter media within the skeletal structure.

Abstract: A filter element may include a first end disc, a second end disc, a filter medium arranged between the first and second end discs, wherein the first and second end discs are spaced by a filter medium. A third end disc may connect the first and second end discs and be arranged obliquely to at least one of the first end disc and the second end disc.

Abstract: An air filter for exemplary use with forced air circulation systems includes a modular media core having rigid top and bottom media supports that are connectable with a variety of axial supports to form a high efficiency air filter cartridge useful with many different types of air circulation systems.

Abstract: A filtration apparatus includes at least three filter elements for filtering fluid, and a frame having a pyramidal frustum configuration that has at least three sides. The frame includes a frame structure for supporting the filter elements at the sides such that the filtration apparatus has a pyramidal frustum configuration. The filtration apparatus may be part of a filtration assembly. The filtration apparatus may be utilized within an associated method.

Abstract: Air cleaner and preferred components for an air cleaner are provided. In certain arrangements, a band is permanently mounted to the media pack, surrounding the media. Also, the cartridge is non-circular and includes a radial seal thereon.

Abstract: A filter unit (1) for the filtration of gaseous fluids has a filter web (13), which is wound in a spiral about a support core (18), and which is provided with parallel flow channels (16a, 16b) for the fluid. Flow channels (16a, 16b) which are directly adjacent to the support core, are covered by a cover element (4), which is connected to a component of the filter unit (1).

Abstract: A collapsible air cleaner filter is provided. The filter includes a pleated media filter having a first end, a second end, and a filter media extending between the first and second ends, wherein the filter media includes a first plurality of flexible end portions and a second plurality of flexible end portions, the first and second plurality of flexible end portions are separated by a plurality of pleats, and the filter media extends a first length between the first and second plurality of flexible end portions, and an end member coupled to the first end of the pleated media filter, the end member extending a second length parallel to the first length, the first length being greater than the second length.