Abstract: An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second width, the second width being less than the first width. The coupling assembly includes an element carried by the second section, and presents an engagement width that is greater than the second width and less than or equal to the first width such that the element may be shiftably received within the first section at the first width, and can be removably engaged at the second width.

Abstract: An air filter assembly which filters and purifies air prior to entering an external combustion engine includes a conical radially pleated filter element disposed over a filter carrier. When assembled, the pleats of the filter element are trapped between a plurality of internal teeth on an internal comb section of the filter carrier and a plurality of external teeth on an external comb section of an opening of the air cleaner box. The filter carrier further includes a plurality of struts which further shapes the filter element. A locking mechanism secures the air filter assembly to the air cleaner box.

Abstract: A filter element formed of a pleated filter medium (11) and having a seal or gasket element (15) on its periphery or end faces. On one side of the filter element, which may represent either the inlet or the outlet side of the filter element, at least one adhesive track or reinforcing member (12, 13, 14), and preferably at least two adhesive tracks or reinforcing members (12, 13, 14), is/are arranged in such a way that the filter element can be bent to a curved configuration in one direction.

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: 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: A filter cartridge is made of an accordion fold pack folded in a zigzag-shape. At the end faces (4) of the accordion fold pack, running parallel to the folds, provision is made for the closing elements (5) which include stiffening strips (6), partially covering the accordion fold pack (2), at least on its discharge side, and sealing elements (7) integrally connected to the stiffening strips (6).

Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing for a tubular filter element. The housing has first and second ends with an inlet and an outlet at the first end for the gas that is to be filtered, and a support surface on its internal wall at a point towards its second end. The assembly includes a tubular filter element arranged within the housing for the gas stream to flow through its wall between the inlet and the outlet. The element is located in the housing by means of a support which extends between the filter element at or towards its end and the support surface on the internal side wall of the housing on which the support rests.

Abstract: A filter unit comprising a filter part made of an adsorbent-bearing filtration material and characterized in that said filter part is integrally molded with a filter holding frame made of a thermoplastic resin and that the adsorbent of the filter part is packed to the position contacting the filter holding frame.

Abstract: A filtering device for treating substances passing therethrough includes a filter cartridge having a cylindrical inner wall surrounded by a cylindrical outer wall. The inner and outer walls are spaced to define an annular space between them. A filtering media occupies the annular space and operates to remove contamination from a fluid flowing through the filter cartridge. First and second covers are located at opposite axial ends of the filter cartridge for sealing the system. At least one biasing assembly is disposed at one axial end of the filter cartridge for applying an approximately constant compression force to the filter medium. The compression force minimizes the formation of voids and the occurrence of bridging within the filtering media. A sensing mechanism, such as a Hall Effect sensor, can be applied to the filter cartridge for detecting changes in the filtering media which indicate the formation of voids or defects in the filtering media.

Abstract: A filter assembly for collecting material that is entrained in a gas stream includes a housing having inlet and outlet ports for the gas that is to be filtered. The housing includes an end cap in which at least one of the ports is provided, and a body section in which a tubular filter can be located arranged for the gas stream to flow through its wall provided by a filter medium, the end cap and the body section being separable to allow access to the inside of the housing. A tubular member, which might be a filter element or a conduit for directing a flow of gas to a filter element, can be sealingly connected to the end cap in fluid communication with one of the ports therein. The tubular member includes a tang which can be received in a recess in the housing when the tubular member and the housing end cap are properly assembled.

Abstract: A filter (10) has a housing (12) extending along an axis (18) between first and second axial ends (20 and 22), and has a closed loop primary filter element (24) extending axially in the housing, and a closed loop safety filter element (48) in the hollow interior (30) of the primary filter element. A detent member (60) engages and retains the end cap (54) of the safety filter element independently of the primary filter element to retain the safety filter element in housing upon removal of the primary filter element from the housing.

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 assembly includes an accordion fold pack made of filter material, which is sealingly joined to a retention frame. The retention frame has at its end face, at least on one side, a bracing whose length corresponds essentially to length of an end-face fold of the accordion fold pack extends the bracing essentially parallel to the direction of the end-face fold edge of the accordion fold pack and is arranged in the end-face fold. Disposed at the end face of the retention frame is a double sealing lip which extends in the direction of the end-face fold edge, as well as essentially parallel to the bracing. The double sealing lip is able to swivel about a film-hinge-type joint, and can be sealingly positioned with first sealing lip against end-face fold wall, and with second sealing lip against a boundary wall of a filter housing that faces the fold wall.

Abstract: A filter device has a frame, a grid, a filter medium and, if desired, a gas adsorption medium. The frame is flexible so as to be temporarily deformable and is made of polypropylene, as is the grid. The filter medium is a mat of non-woven material and the gas adsorption medium is activated carbon.

Abstract: A filter insert which is insertable in a sealing manner into a filter housing includes an accordion fold pack whose end walls extend perpendicularly with respect to the longitudinal direction of the filter pack. Each of the end walls is surrounded in a sealing manner by a shape-stabilizing, clamp-shaped reinforcing element, each of the reinforcing elements being integrally formed in one piece with a gasket. The gasket is capable of being placed, in a sealing manner under elastic prestressing, against the adjacent housing wall of the filter housing.

Abstract: To provide a filter frame which enables a filtering medium to be easily renewed on a site and makes it possible to provide a filter at a low cost.The filter frame comprises a pair of frame elements capable of being integrally coupled together through flange bonding, each frame element comprising a passage portion allowing the passage of a fluid to be filtered and a flange portion outwardly disposed at a peripheral end portion of said passage portion, and that each of said flange portions has at least one bending portion, and said two flange portions, when coupled together, are engaged with each other based upon at least one tongue-in-groove connecting portion with said filtering medium being sandwiched between said flange portions.

Abstract: An air filter designed to be placed at a definite distance L beyond the periphery of the primary airflow which is created by an operating fan, and attached to a stationary element of the fan or to a stationary element of an enclosed space with fasteners which are, at the same time, vibration isolation units. The present invention greatly reduces the creation and release of fine particles of soot, mold, dust mites, etc. Five modifications of the invention are described, as well as the way to determine a distance L when the fasteners are used with ceiling fans, diffusors and other conventional fans. When an operating fan with a weighted base is used, the base acts as an additional vibration dampening unit, which further limits creation of fine toxic particles.

Abstract: A filter device for filtering a fluid, in particular for filtering the air flowing into the passenger compartment of a vehicle. The filter element (10; 60) including filter material (12; 62) with a border (14; 64) and a filter element frame (20; 70) connected with the filter material (12; 62) and extending at least partly along the border (14; 64), the filter element frame (20; 70) being provided with a projecting resilient sealing lip (24; 74) for abutting a device (42, 44, 48) receiving the filter element (10; 60), the sealing lip (24; 74) having at least one bending section (26) of a first thickness (30) facing the filter element frame (20; 70) and at least one enlarged section (28) adjoining the at least one bending section (26) and facing away from the filter material (12; 62), at least a part (40) of the enlarged section being of a second thickness (32) greater than the first thickness (30) in the at least one bending section (26).

Abstract: A non-round unitary filter cartridge according to the present invention is provided having a unitary structure with pleated filter media formed securely about a perforated interior core. Opposite ends of the pleated filter media and perforated core are integrally formed with a bottom end cap and a flexible upper collar. The flexible upper collar is formed of a flexible molding compound which is deformable to pass through an opening in a tube sheet which retains the filter cartridge. The perforated core is oblong in configuration, having first and second parallel major side surfaces and first and second rounded outer ends. The flexible collar is elliptical in cross-section and has an outwardly facing groove located at the top of the barrel portion for sealably receiving a periphery of the tube sheet aperture.

Abstract: A filter system utilizing a coalescing-type filter element with an end cap which snap locks into a filter system. One embodiment includes elongated snap lock arms. Another embodiment includes shortened arms. A third embodiment includes a snap lock ring. The snap lock arms and the snap lock ring may include an extrusion for mating with a depression in the intake of the filter system. Alternatively, the snap lock arms and snap lock ring may include a depression for mating with an extrusion on the intake of the filter system. Further, the filter system may be arranged such that the end cap snap locks into an outlet of the filter system.

Abstract: The invention provides a method of filtering air within an enclosed space which includes the combination of a fan and air filtration media, which is positioned relative to the fan so as to avoid aerodynamic and mechanical vibrations within the filter media. The filter is positioned relative to the fan such that the airflow passing through the filter will be within the laminar regime. The filter is connected to the fan or to a structural element within the enclosed space by vibration isolation units, which serve to dampen or eliminate mechanical vibration within the filter media caused by the operating fan. The invention provides efficient dust collection by virtue of the low velocity, laminar airflow through the filter, and greatly reduces release of dust particles from the filter media by virtue of the reduction of vibration within the filter media.

Abstract: An apparatus (20) for inflating an air bag comprises a housing (22) which includes a wall (84) having an inner surface defining a chamber (108). Ignitable gas generating material (122) is located in the chamber (108) and, upon ignition, provides combustion products including gas which flows from the housing to inflate the air bag and hot particles. A tubular filter (140) removes hot particles from the gas flow. The tubular filter (140) comprises a strip of material having a plurality of spaced openings (146) through which the gas can flow and two end portions (160, 162) which overlap. The strip of material also has a plurality of projections (142, 144) engaging the inner surface of the housing (22). The projections (142, 144) are located on the strip of material at spaced locations around the tubular filter (140). The projections (142, 144) space at least a portion (148, 150 or 152) of the tubular filter (140) away from the inner surface of the housing (22).

Abstract: A filter having a filter element disposed in a filter housing; the filter element being formed of a pleated filter paper or a nonwoven filter material and being of substantially planar or flat configuration. Sealing elements in the form of a rolled seal are provided on at least two lateral surfaces of the filter in order to seal the filter element in the filter housing.

Abstract: An in-line filter includes a hollow base having first and second wall portions formed between its ends and a filter element mounted on the base. During use, the base of the filter is disposed inside a standard tubing connector, and the wall portions are resiliently deformed by the tubing connector such that the surfaces of the wall portions are pressed into sealing contact with internal surfaces of the tubing connector. The filter element connected to the base is disposed inside the tubing connector and/or tubing to which the tubing connector is attached. According to another form of the invention, a filter element includes a hollow base having a radially outwardly extending flange. An annular sealing member is mounted on the flange, and a filter element is mounted on the base. During use, the base of the filter is disposed inside a standard tubing connector, and the sealing member is pressed into sealing contact with internal surfaces of the tubing connector and with the flange.

Abstract: A gas generator includes a tubular combustion chamber, and at least one filter and retaining element arranged within the combustion chamber. The filter and retaining element is inherently elastic. A holding device is formed in one piece within the combustion chamber for holding and locating the filter and retaining element in a predetermined position. The holding device extends longitudinally and parallel to an axis of the combustion chamber. The filter and retaining element is clipped into the holding device and is retained in the predetermined location by the elasticity of the filter and retaining element.

Abstract: A high temperature resistant material including between approximately 28 and 60 dry weight percent of high temperature resistant ceramic fibers and between approximately 20 and 50 dry weight percent of high aspect ratio vermiculite.

Abstract: In an air conditioner having an air filter comprising a frame body and a mesh which are integrally formed, a specific portion 140 of the frame body 132 is wider than the other portions of the frame body, and a support post 130 which is engageable with a latch slot 131 on the main body is disposed at the widened portion, so that even when the joint between the frame body and the mesh is formed away from the support post, the mechanical strength of the post can be maintained. In addition, the width of the joint at the widened portion is substantially equal to that of the other portions of the joint, so that the mesh is uniformly fixed to the frame body.

Abstract: A disposable intake air cleaner for internal combustion engines, particularly relatively large truck engines and the like. The air cleaner accommodates engine intake air ducts of different sizes as well as installation of the cleaner on a motor vehicle without precise alignment of the air cleaner with the engine intake air duct and without the use of a hump hose or other flexible air conduit between the air cleaner and a fixed engine intake duct. The air cleaner has a flexible air duct coupling integrally formed, by a unique method, with a sealing bond between the air cleaner housing and air filter. A reusable flexible boot connects the air cleaner inlet to an engine air intake passage in the vehicle hood when the cleaner is mounted in the engine compartment and the hood is closed.

Abstract: The catalytic converter has a casing with two one-piece shells. These each have a curved section and flanges projecting outward away therefrom. The flanges are welded to one another in pairs and make an angle with one another at least in a substantial part of their lengths and, for example, over their entire lengths. In the production of the catalytic converter, the shells can be produced simply and economically with the aid of a shaping process. After at least one dimensionally stable core and an elastically deformable intermediate layer surrounding this core have been arranged between the two shells, the latter are pressed against one another with a predetermined compressive force and are welded to one another. In the mass production of catalytic converter, their cores can be installed readily and without damage in the casing, even in the case of relatively large deviations from the intended ideal shapes and ideal dimensions.

Abstract: A frame carries a variable flow scent dispenser and supports an air filter. The frame, dispenser and filter are to be inserted as a unit into a forced air heating and/or cooling system duct adjacent to the duct outlet through a floor or wall register. The filter is in the form of a two-ply fibrous sheet with an opening between the plies to receive the frame and dispenser. The filter collects dirt particles borne by the warm air as it leaves the duct and is quickly and easily replaceable. The scent dispenser is a container for scented air freshening material and has apertures through opposite walls, which walls are disposed transversely to the direction of airflow, permitting warm airflow through the container. The warm air will cause evaporation from the scented material and will entrain the vaporous scent and disperse the scent throughout the room.

Abstract: A filter assembly of the Vee-panel type comprising a filter frame and a plurality of complementary pairs of replaceable filter panels slidably disposed within the frame and defining a plurality of adjacent Vee's with the apexes of the Vee's being disposed adjacent the air outlet end of the assembly. The filter frame defines a plurality of rectangular perimeter panel retention surfaces thereon adjacent the sides of the filter panels for retaining the panels in place and forming an air tight perimeter seal therewith. A compressible gasket is disposed about each of the panel retention surfaces.

Abstract: A high temperature resistant seal for a catalytic converter is made from a high temperature resistant material including between approximately 28 and 60 dry weight percent high temperature resistant ceramic fibers and between approximately 20 and 50 dry weight percent high aspect ratio vermiculite. The seal is formed by mixing the resistant ceramic fibers with an aqueous dispersion of high aspect ratio vermiculite, applying the resultant mixture to a monolithic catalyst structure of a catalytic converter and heating the mixture and the monolithic catalyst structure to evaporate the water from the mixture. The seal and the monolithic catalyst structure can then be assembled in a housing to form a catalytic converter.

Abstract: Disposable air filter includes a filter element formed from a stacked plurality of annular disks. The disks are formed from a sorptive material and expand upon absorption of oil or water droplets. The disks are slightly compressed by a movable baffle. The baffle floats upon a stream of air entering the filter and directs the air radially through the filter element. The air flows between and through the disks with a resulting low pressure drop across the filter. As the disks expand, the baffle shifts axially within a filter housing to maintain the pressure drop across the filter element.

Abstract: A monolith can be mounted in a catalytic converter by a material containing intumescent vermiculite flakes that have a uniform content of chemically bound water from about 1.0 to 3.2% by weight and a uniform bulk density from about 0.2 to 0.9 g/cm.sup.3. Such a mounting affords good support to the monolith at warm-up temperatures, exerts adequate holding forces at operating temperatures without danger of cracking the monolith, and does not incur gradual reduction in holding forces at operating temperatures.

Abstract: An air scoop screen is used in the incoming end of an automotive air intake to prevent the ingestion of rocks or debris thrown up by preceding vehicles. A rectangular fiberglass screen is folded outward along its edges to form a rectangular screen with rectangular edges about 90 degrees to the screen body. Rigid reinforcements may be placed inside the edges and secured to a Velcro fastener and to the screen edges to assist in maintaining the rectangular shape. A hook-type Velcro fastener is bonded to the inside of the intake scoop near its front end. The screen is inserted in the air scoop and, with the fingers on the inside of the edges, the Velcro fastener attached to the screen is pressed into the Velcro fastener bonded on the inside of the air scoop.

Abstract: A bed of activated carbon granules is maintained tightly packed within a fuel vapor storage canister housing by a specially designed compensator. A pair of spring loaded, nested trays move axially relative to one another and push continually into the lower face of the carbon bed to keep it packed. The trays also define a continuous, self maintaining gap that is smaller than the expected carbon granule size, preventing them from falling out in spite of the swelling of the canister housing.

Abstract: Constructions and methods are described for collecting particulate material from gas streams. In one specifically described arrangement, a region of uniform or constant density depth media is oriented upstream of a region of gradient density depth media. In another, a preferred region of gradient density depth media is constructed, to effect particulate collection in a preferred manner. Preferred constructions described herein, utilize a pleated paper filter oriented downstream of depth media, to advantage.

Abstract: An air filter for an internal combustion engine having a housing 10 with an air inlet 11 on the raw air side and an air outlet 12 on the clean air side. The air outlet has a tubular projection 27 extending into the housing 10 on which a filter insert 15 can be removably fastened. Air passes through the filter insert 15 radially from the outside in. To seal the filter insert 15 on the tubular projection 27, a radial gasket 23 is provided which has an attachment portion clamped by an inwardly extended flange on an end plate 19 of the filter insert, and which has a seal portion with a sealing area arranged adjacent the attachment portion.

Abstract: An electrostatic air cleaner is attached to a side of a furnace in such a manner as to be positioned and supported during the installation process, and easily connected to the electrical power within the unit. A bracket is attached to the air cleaner frame in such a way as to have an extended lip portion engaged with one edge of the cabinet opening to thereby position and support the air cleaner during the installation process. The power lead is so positioned on the air cleaner frame that, when the air cleaner is placed in position against the unit side wall opening, the lead will project through the side wall opening for connection to a power supply within the unit.

Abstract: A disposable air filter includes a pair of cover members which enclose an outlet body defining an outlet chamber communicating with an outlet tube. A pair of panel filter elements are supported on opposite sides of the outlet body. Fasteners interconnect the cover members so that they compress seals carried by the filter elements against the outlet body.

Abstract: A catalytic converter or diesel particulate trap having a monolithic ceramic element or diesel particulate filter mounted within a metallic casing by a resilient, flexible, erosion resistant mounting composite. The erosion resistant mounting composite is comprised of an intumescent mounting mat protected on at least one lateral edge by a strip of metal fabric.

Abstract: A grating is fastened to the housing of a computer by threaded nuts and screws, having a truncated-cone head and passing through holes made on the grating, on the housing, and on the frame of an aspirator, as well as through truncated-cone shaped bushings, which are provided with extensions turned towards the center of the grating, so to remain below a portion of a metal net placed over the screws and kept in place by a cover snap-locked to the grating, so that the net is electrically connected with the housing.If the frame of the aspirator is made of plastic material, then an electric connector, is linked to one of the screw or nut, with a conductor connector with the housing.

Abstract: The present invention relates to a filter unit having a sheet of filtering material mounted on a first frame and a second frame received within and below the first frame. The second frame is configured such that the filtering material is tightly held between the first and second frames and the filtering material is stretched by the second frame. In accordance with one of the aspects of the present invention, the second frame is provided with ear members. The ear members are sized such that the ears penetrate the filtering material and hold the first frame tightly between the ear members. The ear members reinforce the first frame by the second frame, through a mechanical interconnection of the frames and also, prevent slippage of the filtering material.

Abstract: As an air filter assembly attaches an air filter to an air compressor. The assembly includes an air filter, an outer plate and a baseplate. The air filter is positioned between the outer plate and the baseplate. A mounting device for attachment to the air compressor extends through the air filter and includes an attaching portion at a first end and a tensioning portion at a second end.

Abstract: A filter of depth layer type comprises a generally cylindrical filter body formed by laminating filter elements each in the form of a thin sheet of a filtering material having a central hole, and these central holes provide a conduit extending in the axial direction through the filter body. The filter body has a density distribution in which the density is lowest at the outer peripheral area sewing as an inlet for a fluid to be filtered and becomes progressively higher toward the conduit to serving as an outlet for the fluid to be filtered.

Abstract: A filter device having a plurality of filter elements and at least one flexible joint connecting the filter elements to each other. The filter elements are made of a substantially inflexible material and have connecting surfaces in parallel with a direction of air flowing through a passage in which the filter device is provided. One end of the flexible joint is connected to the connecting surface of one of the filter elements, and the other end of the flexible joint is connected to the connecting surface of the filter element adjacent thereto.

Abstract: A gas filter that has a simple structure and maintain the sealing effect of sealing members even at a high temperature is disclosed. The gas filter comprises a case with a gas inlet and a gas outlet, a ceramic filter placed in the case, sealing members for sealing gaps between the case and the filter and also for directing gas entering from the gas inlet so as not to bypass the filter before exiting, and an elastic member placed in the case for pressing the sealing members to ensure unfailing sealing.

Abstract: A powder collector having spaced parallel walls, one wall having at least one discharge opening. Three triangularly-positioned rods between the walls form a cage to retain a cartridge. A cartridge is positioned in the cage between the walls with an open end surrounding the opening in the wall. A screw in the wall opposite the opening presses the cartridge and a gasket between the cartridge and the wall against the opposed wall to seal the cartridge in the collector.

Abstract: An air filter assembly .?.comprises.!. .Iadd.includes .Iaddend.a filter housing having a filter media .?.is.!. mounted therein, and interposed between the inlet and outlet of the housing. An end cap having an annular groove formed therein is mounted to one end of the filter media. A gasket formed of a pliable material is mounted within the groove. The assembly is provided with .?.means.!. .Iadd.a nut and bolt assembly .Iaddend.for urging the end cap against an adjacent end wall of the housing to compress the pliable gasket therebetween, thereby sealing the inlet from the outlet, and insuring that air passing through the outlet must first pass through the filter media of the filter unit.