Abstract: A filter product includes a filtration media combined with a multi-component frame assembly that can effectively support the filtration media in place proximal to its edges and in accordance with its desired orientation and wherein the assembly can be selectively taken apart to provide access to the filtration media by way of a releasable lock connection. Preferably, a snap-fit releasable locking system is incorporated within the frame design. The present invention is particularly applicable to filtration media comprising pleated filtration media. Such support features include rack-like media engagement elements, which elements are advantageously provided so as to preferably engage the filtration media proximal to its side and end edges from above and below to preferably compress and ensure an effective seal and support connection between the frame and the filtration media.

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 element is provided including a media construction including a corrugated sheet secured to a flat sheet rolled into a coiled construction. The filter element includes a mounting flange secured to the coiled construction. The mounting flange projects radially from the outer, annular surface of the coiled construction. The mounting flange defines at least one fastener socket to allow for axial mounting of the filter element into a housing. An air cleaner includes a housing with filter elements, as described herein, operably installed within. Preferably, the filter element is sealed within suitable housings with a seal, such as a radially directed seal. Preferably, the filter element is secured to the housing by axial mounting of the mounting flange to the housing using fasteners. Methods for installing, assembling, using, and servicing are provided herein.

Abstract: An apparatus for the transmission of the pressure in the sterile area of a medical appliance, such as a hemodialysis appliance, to a non-sterile pressure gauge having two housing halves and a sterility filter positioned between the two housing halves. The housing half on the sterile side may be made of polycarbonate, and the non-sterile housing half may be made of a polymer, preferably a polyester/polyether copolymer, which provides an easily disconnectable and leak-proof connection with the pressure gauge. The two halves are ultrasonically welded together.

Abstract: A filter apparatus for deployment over a duct end in a forced air heating/ ventilating/air conditioning system is described. The apparatus has been specifically designed for easy installation, and also for convenient cleaning and maintenance by occupants of the structure where the apparatus is employed. The apparatus preferably overhangs the duct end, thereby allowing improved filtration efficiency and reduced air pressure drop across the filter apparatus.

Abstract: A parallel folded filter has good sealing properties between the folded filter web and the filter housing with the smallest possible amount of sealant. The filter is prepared with an elliptical filter blank, in which the rows (1) of fold lines (locations of predefined fold edges or imaginary fold edges) are at right angles to an axis (4) extending in the direction of the greatest longitudinal extension of the filter blank (2). The circumferential contour of the filter blank (2) is dimensioned such that it assumes a circular shape with the folds stood up (e.g., in a folded state). An adhesive bead (3) is applied along the circumferential contour. A ring-shaped filter housing accommodates the folded filter blank (2) such that a circumferential support surface is present for the adhesive bead (3).

Abstract: The present invention provides an air-conditioning air filter capable of cleaning and replacing only a filter element thereof for resources saving, refuse reduction, and cost reduction, and also preventing air leakage due to expanded deformation of a main box.

Abstract: An air treatment appliance having an external body with a movable portion and a main portion. An air inlet and an air outlet in the external body permit airflow through the device. A fan inside the body is operable to draw in air through the air inlet and to expel it through the air outlet, and the air may be passed through a filter mechanism in the device. An access mechanism permits convenient access to the filter mechanism and other components in the external body. The device is at least partially disabled when the movable portion is moved relative to the main portion.

Abstract: A mounting system for filtration media including an elongated channel member which supports at least one end of the filtration media. The channel member includes first, second, third, and fourth wall members. One end of the first wall member is preferably bent inwardly and has a plurality of engagement points formed therein which are created by forming cut-outs in the first wall member. Preferably, the fourth wall member extends at an acute angle from the third member with the first and fourth wall members defining an opening therebetween into which the filtration media is inserted for support.

Abstract: A minipleat synthetic filter assembly is provided. The filter assembly includes a frame assembly and a section of pleated filter media mounted within the frame assembly. The frame assembly includes a plurality of corner members and an equal plurality of side members interconnecting the corner members. The frame assembly may be made in any desired size and shape to accommodate a wide variety of applications. The section of filter media is a sheet of a synthetic nonwoven material folded to form minipleats having a spacing between adjacent peaks of no greater than 20 mm.

Abstract: A mounting system for filtration media including an elongated channel member which supports at least one end of the filtration media. The channel member includes first, second, third, and fourth wall members. One end of the first wall member is preferably bent inwardly and has a plurality of engagement points formed therein which are created by forming cut-outs in the first wall member. Preferably, the fourth wall member extends at an acute angle from the third member with the first and fourth wall members defining an opening therebetween into which the filtration media is inserted for support.

Abstract: A filter for a vehicle air conditioning apparatus is composed of only a filter medium, and is disposed in a case. A first support member supports a peripheral portion of the filter and a second support member supports a central portion of the filter in the case to prevent deformation of the filter. The filter composed of only the filter medium can be bent, and be detached from the case in a narrow space. It is not necessary to detach opposing parts such as a glove compartment to detach the filter.

Abstract: A filter cartridge made of an accordion fold pack folded in a zigzag-shaped manner and made of a thermoplastically moldable and heat-sealable material, whose folds are held at an adjusted, defined distance relative to each other, in particular made of a nonwoven fabric. The longitudinal direction of the accordion fold pack, transversely to the folds, the individual fold peaks are folded over in the same direction in at least one strip on one or both sides of the accordion fold pack and in each case fixedly joined to the next following, likewise turned-down fold at least in the overlapping region, by heat-sealing.

Abstract: The invention is directed towards a furnace comprising a panel and filter assembly. At least two z-shaped brackets and two flanges are used to retain a filter directly behind the front panel of the furnace. This allows for easy removal and installation of filters in the furnace. It further allows for the use of commercially available disposable filters.

Abstract: A minipleat synthetic filter assembly is provided. The filter assembly includes a frame assembly and a section of pleated filter media mounted within the frame assembly. The frame assembly includes a plurality of corner members and an equal plurality of side members interconnecting the corner members. The frame assembly may be made in any desired size and shape to accommodate a wide variety of applications. The section of filter media is a sheet of a synthetic nonwoven material folded to form minipleats having a spacing between adjacent peaks of no greater than 20 mm.

Abstract: A framed filter media comprising a filter media having a fluid inlet face and a fluid outlet face with peripheral sidewalls. The peripheral sidewalls are attached to a strip frame by an adhesive-potting compound. The continuous strip frame is formed into three or more (up to an infinite number if the sidewall sections(s) is formed into a circular filter frame) sidewall sections having a substantially flat sidewall and at least two projecting filter retaining tabs which form a channel on a first face of the sidewall section for containing the adhesive potting compound. The sidewall sections are separated by corner notches extending through the retaining tabs at least to the substantially flat sidewalls. Two terminal sidewall sections meet to form a seam such that the sidewall sections circumscribe the filter media peripheral sidewalls.

Abstract: A structure for securing the top and bottom cover portions of an air filter includes a wing member secured to the bottom cover portion. The wing member is attached to the cover portion through a post. The wing member has a wedged surface which is selectively moved along a wedged surface on a slot in the upper cover surface. The wedged surfaces cam the wing member to pivot. Once the wing member has moved through the slot, it is biased back and in a direction opposed to the rotation caused by the wedged surfaces. The wing member is thus secured on a surface on the upper cover member adjacent the slot. The wing member thus secures the two cover members in a snap fit connection. To release the snap fit connection, one merely biases the wing member in an opposed direction.

Abstract: An air filtering device including a circular plate, plurality of fan blades fixedly attached to the circular plate, the fan blades extending downwardly from the lower surface of the circular plate; a filter frame having an air permeable cylindrical inner wall, having an upper wall, having a lower wall, and having an air permeable cylindrical outer wall, the air permeable cylindrical inner wall, the air permeable cylindrical outer wall, the upper wall and the lower wall defining a cylindrical filtering media containing space; air filtering media extending annularly around the air permeable cylindrical inner wall within the cylindrical filtering media containing space; and, filter frame attaching means attaching the filter frame so that it extends annularly around the outer edges of the fan blades.

Abstract: The invention is directed towards a front panel assembly for receiving air to be conditioned by a manufactured home furnace. The front panel assembly comprises molded panels allowing for a greater amount of open louver area, improved appearance, and improved sound-deadening qualities. The molded panels can be held together by rails, which can also be used to hold a filter in place behind the molded panels.

Abstract: An arrangement for filtering a particulate-laden fluid stream in a confined flow-through passage which includes a porous filter media extending thereacross and a velocity distribution control member cooperative with said filter media to preselectively control the velocity of the fluid stream as such fluid stream passes through the entirety of the porous filter media.

Abstract: An air cleaner wherein an element for filtering intake air and an absorber member for absorbing fuel vapor are disposed within a housing. Within the housing, a stopper portion for tentatively attaching the absorber member and a seat portion capable of receiving the absorber member at a side opposite from the stopper portion are formed near a site where the element is mounted. The element or the absorber member has a presser portion that retains the absorber member in a state where the absorber member is pressed against the seat portion, when the element is mounted within the housing.

Abstract: The Easy-Attach Air-Duct Filter Frame is a simple device that permits ordinary consumer to filter the air issuing from interior air ducts in buildings either with or without forced air circulation systems. The Frame, which consists of four frame sides (1) manufactured to create a channel opening into which a filter or filters may be inserted, is easily installed on the surface of an existing grille by magnetic backing (4a) either by adhering directly on to front surface of the register grille, or by a attaching a thin steel frame (4b) to the surface of the grille before attaching the Frame. Access to the filters for installation, removal, and cleaning is provided by a removable pullout front-grate (3), which secures the filters in the unit when it is in place. A mesh screen (2) at the back of the frame sides (1) helps restrict the passage of dirt and vermin into the Frame unit. The device and its method of installation effectively redirect air flow from the duct through the Frame unit.

Abstract: A cassette filter made of a case open at either end that is formed of flat sheets which surround a dimensionally stable filter pack in a dust-tight manner. The sheets are cemented to each other and to the filter pack by means of adhesive layers and are spatially fixed in position by the filter pack.

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: The invention provides a filter apparatus for removing air entrained particles comprising a collapsible filter media. The filter media has a periphery. A continuous frame extends around and attaches to the periphery of the filter media whereby the filter media and attached frame together can be lengthwise collapsed.

Abstract: A durable meltblown filter material is provided comprising a first layer of fine polyester fibers having an average fiber diameter less than 8 micrometers and a second layer of polyester macrofibers having a significant number of fibers in excess of 12 micrometers. The macrofiber layer forms an open structure and the basis weight ratio of fine fiber layer to macrofiber layer can range from 2:1 to 10:1.

Abstract: A filter assembly of an air filter, which includes a corrugated filter sheet, and both ends thereof are mounted in a clamp space between two rows of corrugated positioning grooves of the upper and lower clamp plates of a horizontal lintel; both sides thereof are clamped in two vertical jambs respectively; the corner ends of the horizontal lintel and the vertical jamb are connected together by using a connection plate to plug therein; then, the outer surface of the filter assembly and the corner ends will be pressed and punched to have the horizontal lintels, the vertical jambs, and the filter sheet fastened together to form into a filter for screening dust.

Abstract: A filter assembly for use with a commercial air filtration unit. The filter assembly includes a frame, a sorbent material filter, and a primary particulate filter. The frame defines an upstream portion and a downstream portion, with the upstream portion forming a lip. The sorbent material filter is coupled to the downstream portion. Conversely, the primary particulate filter is coupled to the upstream portion of the frame. In this regard, the primary particulate filter defines an inner face and an outer face. Upon assembly, the inner face is adjacent the sorbent material filter and the lip projects upstream of the outer face. During use, the lip provides a receiving surface for installation within a housing, while preventing damage to the filter materials. Further, the filter assembly can be selectively maneuvered to a partially released position relative to the housing whereby the filter assembly hangs freely from the housing, supported at the lip.

Abstract: An air filter is substantially made up of a filter element having a pleated filtering portion and a collar portion that extends on an outer periphery of the filtering portion and that has a sealing function, the filtering portion and the collar portion being integrally formed from the same material, and a cap and a case each of which has a flange for clamping the collar portion of the filter element. One of the flange of the cap and the flange of the case has a protruded portion that has an inclined portion. The collar portion of the filter element has a recess portion that contacts the inclined portion of the protruded portion and is guided by the inclined portion and fits to the protruded portion at a predetermined position so as to become set in position.

Abstract: A filter unit for airtight attachment to a framework of a cleanroom ceiling includes a filter, a circumferential wall surrounding the filter, and a downwardly projecting sealing knife to be received in a sealant containing groove formed in said framework. The sealing knife includes vertical weldable wall elements interconnected by welding and mounted on the circumferential wall by airtight mounting means.

Abstract: A minivent air filter for filtering air passing through a vent in a force air system to remove dust and other particulate matter from the passing air. The minivent air filter includes a vent cover and a tubular vent sleeve in communication with the vent cover. The vent sleeve has a elongate slot. A pair of support rails are disposed in the vent sleeve below the elongate slot. A filter is inserted through the elongate slot into the vent sleeve.

Abstract: A filter element includes a frame construction and a region of media held by the frame construction. The region of media is oriented within the frame construction to remove at least some particulates from a gas stream passing therethrough. The region of media includes a skirted portion, wherein the skirted portion occupies a volume between the frame construction and a sealing surface of a duct, when the filter element is mounted within a duct. In preferred systems, the filter element may be used as a secondary element in the duct of an engine air intake or in a duct of an air cleaner housing. Methods of using and servicing filter elements are described herein.

Abstract: A screen guard is utilized to protect fin coils of a fin-coil heat exchanger of an apparatus such as a heat pump or air conditioner. The screen guard prevents cottonwood seeds and other debris capable of forming a filter from obstructing the air flow over the fin coils. The screen guard comprises a wide mesh screen member and an adhesive attachment strip. The attachment strip may be magnetic so that it attaches directly to a ferrous housing of the apparatus. Alternatively, a VELCRO® fastener strip is fixed to the apparatus and the attachment strip is a complimentary VELCRO® strip which removably attaches to the fastener strip. The screen guard can be repeatedly removed and reattached for cleaning debris from the screen guard. A method of protecting the apparatus includes removing the screen guard for cleaning and thereafter reattaching the screen guard.

Abstract: A hydrophobic electrostatic breathing filter is fabricated by applying a thin layer of adhesive to the pinch ring of a patient side filter housing portion. A hydrophobic membrane is positioned over the adhesively coated pinch ring to effect a hermetic seal between the pinch ring and membrane using the adhesive interface. Electrostatic filter media and scrim are positioned adjacent the pinch ring of a machine side filter housing portion, and the patient and machine side portions of the housing are then welded together to hold the electrostatic filter media/scrim in place adjacent the hermetically sealed hydrophobic membrane by a mechanical clamping force exerted by the pinch rings. The resultant filter includes a hydrophobic membrane which is hermetically sealed across the patient side of the filter housing, and an electrostatic filter media/scrim element which is independent of the hydrophobic membrane and which is mechanically held in place adjacent the hydrophobic membrane.

Abstract: A filter element includes a filter media having an array of filter media panel members which are oriented at an angle of about 45° with respect to the air stream and are spaced so that the upstream edges of the panels overlap the downstream edges. Consequently, the air stream must pass through two panel members before exiting the filter element. The filter element may also include a secondary filter media in the form of a mat disposed over the downstream edges of the panel members. The filter element is used for filtering cabin air for vehicles or for other similar purposes as well as for filtering engine combustion air.

Abstract: A filter arrangement made up of an accordion fold pack which is sealingly arranged in a housing. The housing is deep drawn in one piece from a polymeric material sheet. A limit stop is punched out of the base of the housing. A seal surrounds the accordion fold pack and seals against the housing.

Abstract: A room air filter apparatus includes a multi-sided housing having longitudinally spaced first and second ends, a plurality of sides between the first and second ends, and a plenum inside the housing. Each of the sides has an empty space frame by outer edges of the housing side. A fan is mounted to the housing and is operably disposed, preferably, within the plenum to draw air from the plenum and to exhaust the air outside of the housing. Filter panels are removably attached to the outer surfaces of the edges and filter material is mounted in the panels to cover the empty spaces. Magnets mounted on edges of the panels may be used as attachment devices as well as other devices for clipping the panels onto the outer surfaces of the edges of the housing. The filter material is preferably a self-charging electrostatic washable material.

Abstract: An apparatus for the transmission of the pressure in the sterile area of a medical appliance to a non-sterile pressure gauge has two housing halves and a sterility filter positioned between the two housing halves. The filter is supported by a backing. The housing half on the sterile side is made of polycarbonate. The non-sterile half of the housing is made of a polymer, preferably a polyester/polyether copolymer, which provides an easily disconnectable and leak-proof connection with the pressure gauge. The two halves are ultrasonically welded together.

Abstract: A filter module is disclosed wherein the module has a three sided channel shaped water permeable frame member and a filter mat member which inserts into the frame to form a filter module which may serve as a filter element of a filter for materials discharged from cooking hood vents. The filter modules are interlocking and permit the in place fitting and assembly of the modules into filter assemblies around and/or under a cooking hood exhaust vent. The overlapping and interlocking elements of the modules provide a secure and readily serviced filter module assembly.

Abstract: A containment assembly for collecting grease or other effluent that includes a layered composite of effluent filtering and trapping materials in the form of a separation filter, a center filter and a barrier layer disposed in a layered manner. The separation filter and center filter desirably include a polypropylene material and each have a different porosity. The separation filter, center filter and barrier layer may be disposed between a top and bottom spacer layer in a layered manner. The composite may be received within a frame assembly. The effluent containment assembly also may include flashing for deflecting the effluent away from the equipment or other effluent source, an assembly for securing the frame assembly to equipment or other source of effluent at an elevation relative to a roof or other surface to be protected, a pole assembly for holding the composite within the frame assembly, and a windbar assembly for holding the composite together during wind conditions.

Abstract: A filter sheet positioned between plates (14) of a filter press has a fluid-impermeable wax layer (11) sealing the sheet's perimeter. The wax preferably comprises ethylene bis stearamide and has a durometer reading of about 75 to about 100 Shore A hardness at 25.degree. C. and 85.degree. C., a melt point of about 110.degree. C. to about 180.degree. C., and a viscosity of less than about 100 cp at 155.degree. C. The wax layer increases the useful life of the filter sheet while providing a sheet which is easily released from a filter press and which retains integrity along the seal during repeated hot water sanitations.

Abstract: An air flow filter assembly of the side-loading type includes a filter guide track adjacent a side access opening for supporting multiple air filter elements in an operative position across the air flow passage. An internal closed loop seal assembly provides an effective, independent peripheral seal for each track-mounted filter element. A gasket retainer, mounted within the air flow passage adjacent the filter track, includes frame segments forming a rectangular gasket frame bordering one or more air flow windows or cells. A seal gasket is mounted on each gasket frame, with each seal gasket including a resilient flange portion extending in a closed loop around each air flow window or cell. The closed loop flange portion projects from the gasket frame for engaging and resiliently sealing along the face of a filter element supported on the filter track in air flow alignment with the air flow window or cell.

Abstract: An air filter used for the filtration of air for a central air and heating system with an internal cleaning apparatus fabricated for easy cleaning of particles from the air filter. This internal cleaning apparatus comprising a cylindrical member with protruding jets adjacent to each other around the mid perimeter of the cylindrical member. The jets receive the porous tubular members which are caped to abstain water form going out the ends. The cylindrical member has a circular posterior member which is affixed to the cylindrical member and is parallel to the circular face member which is unfixed to the cylindrical member. The circular face member has a centrally located female hose fitting protruding downward into the cylindrical member adjacent to the circular posterior member. The female hose fitting receives a male hose fitting, whereby allowing water to flow through the cylindrical member and out the porous tubular members.

Abstract: A filter cartridge has a filter medium, which, on the circumferential side, is surrounded with clearance by a gasket-seal. A frame is arranged in the gap formed by the clearance, and is sealingly bonded to the edges of the filter medium and the gasket-seal.

Abstract: A reusable replacement filter includes a folded elongated filter element. The filter has a cup shaped member which includes a base element. The cup shaped member has a continuous side wall extending upwardly from the periphery of the base element. The cup shaped member has an open end. A plurality of longitudinally disposed rib elements are disposed along opposed portions of the side wall. A removable ring is juxtaposed to the open end of the side wall. The ring has a plurality of fingers which extend axially in an offset complimentary fashion to the rib elements. The ring and cup have means for telescopically engaging the ring to the cup. A removable cap closes the open end of the cup member. The cap and cup each have an aperture for communicating with the exterior of the filter. The apertures allow a fluid to be passed through and cleaned by the filter element.

Abstract: An air filter device and an automobile having the same includes an air filter bent without disassembling a cowl to be simply and easily replaced within a narrow space, and the air filter is commonly utilized to both left-handed drive type and right-handed drive type automobiles. For this, an air filter member is formed with a creasing part throughout the overall portion thereof. A pair of frame members support the marginal edge of the air filter member, and a connecting frame member is integrally connected to the ends of the first frame member and second frame member to allow for bidirectional bending of the air filter member. Thus, the air filter is simply replaced without causing an interference with a frame mounted with a shock absorber. Also, the second frame member is upwardly bent at any time even though the up and down portions are reversed to have compatibility capable of being commonly employed into the left-handed drive type automobile and right-handed drive type automobile.

Abstract: A filter in a printing machine traps contaminants from a stream of air passing therethrough. The filter includes a support member defining an aperture therethrough for the passage of the stream of air. The support member has a cross section in a plane perpendicular to the flow of the stream of air. The cross section has an oblong shape and includes a longitudinal axis and a transverse axis. The filter further includes an air permeable member supported by the support member. The air permeable member defines a opening therein for receiving the stream of air. The filter further includes a reinforcement connected to the air permeable member. The reinforcement extends along the air permeable member in the direction of the stream of air. The reinforcement is positioned with respect to the support member so as to shape the air permeable member so that the opening may be sufficiently large to efficiently receive the stream of air.

Abstract: An air filter has a generally rectangular frame having surfaces defining generally a plane, and a pair of parallel side rails and a pair of parallel end rails along outer edges of the plane-defining surfaces, the rails flaring outboardly at an obtuse angle from the plane when the frame is unconfined, one of the rails at each corner of the rectangular frame being provided with tabs, and the other, contiguous of the rails at the corner having an open end into which the tab extends. The tabs have an angled outer surface and are of a length compared with the height of the open end to be held against movement clear of the open end in every position of the rails when the frame is assembled, to limit the outward flare of the rails and to ensure that the corners of the rails are substantially closed in every position of the rails.

Abstract: A replaceable air filter apparatus suitable for filtering the air in the home includes a frame for affixing the apparatus to the house duct work associated with the heating and/or air conditioning system the frame includes a hinge disposed on one edge, which cooperates with a hinge disposed on a register that may control the flow of air through the duct work and may include adjustable shutters and a device for removably retaining a filter media. The register may be pulled away from the frame for inserting and removing the filter media disposed therein, when desired.

Abstract: A filter cartridge has a frame made of tough material, which sealingly surrounds an accordion fold pack on its circumferential side. The frame is made of assemblable, plate-shaped frame elements and has, on the circumferential side along the lower and/or upper edge of the frame, a tongue, the tongue being insertable in a latticed holder having a U-shaped profile. A viscous joining compound is used to affix the tongue in place. The tongue is formed by strip-shaped tongue elements, each tongue element being joined to a frame element, wherein the adjacent ends of the tongue elements are sealingly fastened to each other by connecting corner pieces.