| Entries |
| Document | Title | Date |
|---|
| 20080209873 | Dust Filter Device - The invention emanates from a dust filter device, in particular for hand-held machine tools ( | 09-04-2008 |
| 20080236121 | Filter Element - A filter element has a zigzag-shaped fold pack of folds. At least one terminal element is folded parallel to the folds of the fold pack. The at least one terminal element has a first leg, a second leg, and a third leg. The first leg is arranged substantially perpendicularly to a flow direction of a medium flowing through the filter element. The first, second and third legs are delimited by folds of the at least one terminal element. The first and second legs are positioned substantially at a right angle relative to one another. The third leg projects laterally away from the filter element to form a peripheral seal. | 10-02-2008 |
| 20080245038 | Plate-Shaped Filter Insert - A plate-shaped filter insert for, in particular, a gas filter with a seal which projects outward on a first of two opposite plate surfaces should be simple and inexpensive to produce with good durability. For this purpose, such a filter insert has the following features: —the filter material ( | 10-09-2008 |
| 20080276582 | Air Filter Arrangement; Assembly; and, Methods - An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes strips of media comprising corrugated sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Blocked stacked arrangements and slanted stacked arrangements are shown. Such stacked media is provided with molded end pieces to secure and seal opposite side edges of the media strips. Also described are serviceable filter cartridges and air cleaners including the filter cartridges. | 11-13-2008 |
| 20090019824 | FOLDABLE AIR FILTERS AND METHODS OF USE THEREOF - Foldable filter assemblies and methods of use thereof are disclosed. An air filter assembly including a frame having opposed substantially rigid end members and a flexible side member, the end members being connected to the flexible side member, and an air filter media connected to and disposed within the frame such that the frame is adapted to be disposed in a planar use position, and the end members of the frame are adapted to be moved toward each other prior to installation into the planar use position. | 01-22-2009 |
| 20090044503 | Filter Element - A filter element has a fold pack having sides. A lateral strip at least partially surrounds the sides of the fold pack. The lateral strip is made of thermally deformable lateral strip material. At least one guide section projects laterally from the filter element and is made from the thermally deformable lateral strip material. In a method for producing such a filter element, a fold pack is at least partially secured with a lateral strip made of a thermally deformable lateral strip material and the lateral strip material is then thermally deformed to a guide section that projects laterally from the filter element. | 02-19-2009 |
| 20090126326 | Ventilation system air filter and method for manufacturing the same - An improved air filter for filtering particulate matter from the air flow of a ventilation system and a method for manufacturing the air filter. The air filter comprises an air filter media having a top surface, a bottom surface, and a perimeter. The filter media preferably is a pleated media. A frame surrounds the perimeter of the media. The frame is preferably made of Styrofoam or similar lightweight foaming material. The foam material becomes bonded to the media such that air leakage between the foam material and the media is prevented when the air filter is in use in the ventilation system. Reinforcing ribs may be provided on the media to provide additional structural support for the filter. | 05-21-2009 |
| 20100186358 | FILTER ELEMENT HAVING SEALING MEMBERS AND METHODS - A filter arrangement includes a media construction comprising a corrugated sheet secured to a flat sheet rolled into a coiled construction. A frame and a first seal member are provided. The frame secures the first seal member to the coiled construction. The first seal member is preferably oriented to form a radial seal with a housing. A second seal member is secured to the outer annular surface of the coiled construction. The second seal member includes a gasket extension having first and second opposite ends; an attachment portion; and a protrusion extending from the attachment portion. The second seal member is preferably oriented to form an axial seal with a housing. Air cleaners preferably utilizing filter arrangements as described herein operably installed within housings. Methods of installing, filtering, assembling, and servicing preferably include arrangements as described herein. | 07-29-2010 |
| 20100192531 | FILTER MEDIUM FOR AIR FILTER AND AIR FILTER - An air filter comprising a filter pack comprising a folded nanofiber filter medium, fitted to a filter frame through a seal material, the nanofiber filter medium being a filter medium for an air filter, comprising a nanofiber filter medium which, when a filter medium face velocity is 5.3 cm/s, has a performance index of collecting target particle diameter of 0.3 μm, 0.040 (1/Pa) or more, performance index of collecting target particle diameter of 0.1 μm, 0.030 (1/Pa) or more, and performance index of collecting target particle diameter of 0.05 μm, 0.050 (1/Pa) or more. By this, a high air volume and low pressure drop type high-performance air filter using a nanofiber filter medium can be provided. | 08-05-2010 |
| 20110173937 | AIR CLEANER ASSEMBLY; COMPONENTS THEREFOR; AND, METHODS - Air filter cartridges for use in air cleaner assemblies are described. The air filter cartridges typically comprise a stack of strips of fluted media, having an inlet flow face and an outlet flow face. A projection is provided extending outwardly from adjacent the outlet flow face of the media pack, as a projection supporting a seal arrangement. The seal arrangement is typically rectangular, with four straight and four rounded corners. The projection can be configured with open corners, and in some instances comprises tabs, to facilitate flexing of the projection to accommodate variations in a housing seal surface, with which the cartridge is installed. Air cleaner assemblies and components therefor, using cartridges in accord with the descriptions herein, are described. | 07-21-2011 |
| 20110219737 | Air Filter Insert - An air filter insert with a folded filter medium is provided along a side edge with a sealing element which is composed of a first contact section which extends in axial direction and a second contact section which extends in radial direction, the two contact sections being applied directly to the side edge of the filter medium. | 09-15-2011 |
| 20110252759 | FILTER - A filter assembly includes a frame for mounting the filter assembly. The frame defines a rectangular opening. A channel is disposed about at least a portion of the periphery of the rectangular opening. Filter media pleat pack is disposed in the channel in the frame. The filter media pleat pack extends across the entire rectangular opening in the frame. The filter media pleat pack separates particles from a gas flowing through the filter media in a first direction. Support structure is connectable with the frame. The support structure engages the filter media pleat pack to limit movement of the filter media pleat pack when gas flows in the first direction through the filter media. | 10-20-2011 |
| 20110308211 | ARRANGEMENT WITH A COVER AND SELF-SUPPORTING FILTER ELEMENT - An arrangement consisting of a cover and a filter element, wherein the filter element has a corrugated bellows with adjacent pleat ridges, wherein the corrugated bellows is hemmed by edge strips, wherein the filter element bears against one abutment side of the cover forming a seal and wherein the filter element is fixed with one side to the abutment side and in that context projects self-supporting from the abutment side of the cover, is in view of the objective to design an arrangement of the type mentioned at the outset and develop it further so that following cost-effective production, a reliable attachment of a filter element on the cover is assured, characterized in that gripping means are arranged on the abutment side which engage around an edge strip on both sides, which bears against the abutment side. | 12-22-2011 |
| 20120031059 | FILTER ASSEMBLY WITH IMPROVED GASKET - A filter gasket seals at least one mitered corner of a filter frame having a substantially planar first surface and an adjacent side surface. The gasket comprises at least first and second elongated gasket segments formed from compressible material. Each segment has a substantially planar surface adapted to contact the substantially planar first surface of the filter frame. The first and second gasket segments also each include an end which, when brought into joined engagement with the end of the other gasket segment, forms an interlocking miter joint to seal the at least one mitered corner of the filter frame. | 02-09-2012 |
| 20120060455 | SEALED EDGE FRAME - The present invention relates to an air filter pack frame constituted of four profiled elements being held together by angle pieces and surrounding an opening there between, in which a pack of pleated filter medium is intended to be mounted, said profiled elements having a front side, which when a pack of filter medium is mounted in the frame is adjacent to an inlet side thereof, and a rear side, which when a pack of filter medium is mounted in the frame is adjacent to an outlet side thereof. According to the invention an inwardly open sealing channel extends along each profiled elements in the front end thereof. | 03-15-2012 |
| 20120060456 | FILTER AND METHOD OF MAKING - A filter is disclosed herein, the filter having: a plurality of sheets of filter media, each sheet of filter media having an inlet end and an outlet end, wherein each of the plurality of sheets of filter media has a first layer of filtration media thermoformed to have a plurality of channels, the first layer having an upper surface and a lower surface; a second layer of filtration media sonically welded to a portion of to the first layer of filtration media after the first layer is formed with the plurality of channels, wherein at least one edge of the first layer is not sonically welded to at least one edge of the second layer, and wherein the sheet of filtration media has a plurality of fluid channels each having an inlet opening at the at least one edge of the first layer and the second layer and a sealed end at another end of the sheet; wherein each of the plurality of sheets of filter media are secured together by a strip of adhesive located between each upper surface of each first layer facing the second layer of another sheet of filter media stacked upon the upper surface of the first layer of the filtration media; and wherein each of the plurality of fluid channels are also in fluid communication with at least one other of the plurality of fluid channels through an opening located between the at least one edge of the first layer and the second layer and the sealed end. | 03-15-2012 |
| 20120073254 | FILTER ELEMENT AND DOUBLE-PLEATED AIR FILTER USING THE SAME - Provided is a double-pleated air filter where filter elements each of which ensures an inter-pleat gap (air passage) by folding filter media in multiple layers and by defining a pitch, a thickness and a folding shape of the filter media are arranged in the V-bank-shaped structure whereby the air filter can be used with a large air volume due to a low pressure drop. In the filter element which keeps an interval between filter media folded in a zigzag shape by an interval maintaining material, a relationship among an interval a (pitch) between a peak portion of a pleat and a peak portion of a pleat arranged adjacent to the pleat, a folded width b of the filter media, an interval c (a center portion gap) between the filter media at center portions of the pleats arranged adjacent to each other (an intermediate position of the folded width b of the filter media), an interval c′ (an opening portion gap) between the filter media in the vicinity of peak portions of the pleats arranged adjacent to each other, a thickness d of the filter media, and a width e (a distal end width) of the pleat in the vicinity of the peak portion of the pleat is set such that the relationship satisfies c′/c≧1.1, c′=a−e≧0.45 mm, c=a/2−d and e/d≧2. | 03-29-2012 |
| 20120167535 | SELF SUPPORTED PLEATED PANEL FILTER WITH FRAYED MEDIA EDGES - A panel filter is provided such as for HVAC applications in which one of the cut edges is frayed and attached with adhesive to the inner peripheral surface of a paper board frame. The frayed edges may facilitate better gluing of pleated filter medium to the frame especially for self-supported filter media applications and may increase structural rigidity and sealibility as a whole. Frayed edges also provide flexibility to assist in installation of a card of pleated filter medium into a paper board frame. | 07-05-2012 |
| 20120272633 | AIR CLEANER; REPLACEABLE FILTER CARTRIDGES; AND, METHODS - The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided. | 11-01-2012 |
| 20130031885 | POCKET FILTER ASSEMBLY - The present invention relates to a gas filter assembly ( | 02-07-2013 |
| 20130036718 | AIR FILTER ARRANGEMENT; ASSEMBLY; AND, METHODS - 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. | 02-14-2013 |
| 20130205732 | COLLAPSIBLE PLEATED FILTER AND FRAME - A collapsible HVAC filter that includes a pleated filter media pack with ends that attach to ends of a planar filter frame member. The structure collapses by folding the filter frame member along score lines and compressing the pleated filter media while the media and frame member are attached. The collapsed components occupy little space relative to the expanded filter, and can be expanded to form a completed filter with little effort required by the end user. Most of the filter media is collapsed in a generally U-shaped channel formed from the folded filter frame member. | 08-15-2013 |
| 20130232933 | Interior Air Filter, Filter Holder and Filter Arrangement - An interior air filter for a motor vehicle has a fold pack having a first side. A material with a first leg and a second leg is disposed on the first side. The first leg is attached to the first side and the second leg has a width that is greater than a height of the fold pack. The material strip forms at least partially a head band or a side band of the fold pack. A filter receptacle for the interior air filter has a slanted wall and a mounting and removal opening through which the interior air filter is inserted or removed from the filter receptacle in a mounting and removal direction. The slanted wall extends at an angle that corresponds to an angle defined by the second leg of the material strip of the interior air filter and a contact surface of the filter receptacle. | 09-12-2013 |
| 20130283743 | AIR FILTER - An air filter including a base and a first and second frame element is disclosed. Each frame element is coupled to the base. The frame elements have an oscillating shape having a first portion relatively close to the base and a second portion relatively farther from the base. A filter element generally follows the oscillating shape of the frame elements. An air filter system is also disclosed. The air filter system can include the air filter and an air filter container. The air filter container contains the air filter and directs air through the air filter in a predetermined direction. An air filter is disclosed including a support structure and an oscillating shaped filter element attached to the support structure. The oscillating shape increases the air filter surface area for a given volume. | 10-31-2013 |
| 20140102059 | AIR FILTER ARRANGEMENT; ASSEMBLY; AND, METHODS - An air filter media construction or arrangement is disclosed. The air filter media construction or arrangement includes strips of media comprising corrugated sheets secured to facing sheets and forming inlet and outlet flutes secured to one another in a stack. Blocked stacked arrangements and slanted stacked arrangements are shown. Such stacked media is provided with molded end pieces to secure and seal opposite side edges of the media strips. Also described are serviceable filter cartridges and air cleaners including the filter cartridges. Methods of assembly and use are also provided. | 04-17-2014 |
| 20140130470 | POROUS POLYTETRAFLUOROETHYLENE MEMBRANE AND AIR FILTER MEDIUM - Provided is a porous polytetrafluoroethylene (PTFE) membrane having a PF value of 36 or more and a mass per unit area of 0.90 g/m | 05-15-2014 |
| 20140196421 | UREA FILTER MATERIAL - A urea filter material may have a base layer, a cover layer and a filter layer arranged between the base layer and the cover layer, wherein all of the layers are formed from polypropylene non-woven fabric. | 07-17-2014 |
| 20140237967 | COLLAPSIBLE EXTENDED SURFACE FILTER AND AIR CLEANER SYSTEM USING COLLAPSIBLE EXTENDED SURFACE FILTER - 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. | 08-28-2014 |
| 20150007535 | Air Filter Element and Air Filter - Disclosed are an air filter element, a filter housing, and an air filter in which the air filter elements have a high filtering capacity and a long service life by increasing the filter surface of an air filter element taking into account structural requirements for the air filter housing. | 01-08-2015 |
| 20150007536 | Flat Filter Element and Air Filter - A flat filter element to be mounted in a filter housing has an inflow surface and an outflow surface downstream of the inflow surface in a flow-through direction. A filter medium extend between the inflow surface and the outflow surface. A sealing section extends circumferentially relative to the flow-through direction. A seal fastened to or interacting with the sealing section is provided, wherein the seal, when the flat filter element is mounted in a filter housing, separates an inlet of the filter housing for air to be purified from an outlet of the filter housing for purified air. A first functional element section is arranged on at least one circumferential side of the filter medium so as to be spaced apart from the circumferentially extending sealing section. The first functional element section is attached to a lateral strip and the lateral strip is attached to the filter medium. | 01-08-2015 |
| 20150007537 | Flat Filter Element, Filter Housing and Air Filter - A flat filter element has a filter medium and a sealing section that seals the flat filter element relative to a filter housing. A support element section is arranged on a circumferential side of the filter medium outside of the sealing section and supports the flat filter element relative to an inner side of the filter housing, wherein the support element section projects past the filter element in at least one direction. The filter housing has a mounting opening through which the flat filter element is inserted into the interior where the flat filter element is arranged such that the inlet is separated from the outlet of the filter housing. A projection arranged on an inner side of the filter housing supports under mechanical tension the support element section of the flat filter element in a mounting position of the flat filter element in the interior. | 01-08-2015 |
| 20150013288 | Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filter - Being described are a filter ( | 01-15-2015 |
| 20150013289 | Filter Element, Filter with a Filter Element and a Filter Housing of a Filter - A filter element ( | 01-15-2015 |
| 20150020487 | Air cleaner; replaceable filter cartridges; and, methods - The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided. | 01-22-2015 |
| 20150027093 | AIR CLEANER ASSEMBLY; COMPONENTS THEREFOR; AND, METHODS - Air filter cartridges for use in air cleaner assemblies are described. The air filter cartridges typically comprise a stack of strips of fluted media, having an inlet flow face and an outlet flow face. A projection is provided extending outwardly from adjacent the outlet flow face of the media pack, as a projection supporting a seal arrangement. The seal arrangement is typically rectangular, with four straight and four rounded corners. The projection can be configured with open corners, and in some instances comprises tabs, to facilitate flexing of the projection to accommodate variations in a housing seal surface, with which the cartridge is installed. Air cleaner assemblies and components therefor, using cartridges in accord with the descriptions herein, are described. | 01-29-2015 |
| 20150027094 | NON-CYLINDRICAL FILTER ELEMENTS, AND METHODS - Filter elements are described. In an example embodiment, the filter element has a support framework and media defining a closed end and an open end. A non-circular radial seal is depicted, in an example. Variations for particular applications are described. | 01-29-2015 |
| 20150068175 | AIR FILTER ARRANGEMENT; AIR CLEANER ASSEMBLY; AND, METHODS - A media pack for including in a filter cartridge of an air filter arrangement, is provided. A variety of configurations for the media pack are described and shown, an example shown being trapezoidal. Filter cartridges including such media packs, air cleaner assemblies and equipment systems are described. Also methods of use assembly are described. | 03-12-2015 |
| 20150107203 | MOLD-PREVENTING AIR FILTER FILTRATION MEDIUM AND MOLD-PREVENTING AIR FILTER - A mold-preventing air filter filtration medium loaded with a water-retaining macromolecule polymer, a mold-preventing agent, and a binder resin, is formed by immersing a filter material or a reinforcing nonwoven fabric (a backing material) in a mold-preventing composition in which the water-retaining macromolecule polymer, the mold-preventing agent and the binder resin are dissolved, and drying the filter material or the reinforcing nonwoven fabric. The reinforcing nonwoven fabric (a backing material) may be bonded to a filter material to form a mold-preventing air filter filtration medium. A mold-preventing air filter includes the mold-preventing air filter filtration medium that is pleated and accommodated in a frame. | 04-23-2015 |
| 20150107204 | COLLAPSIBLE EXTENDED SURFACE FILTER AND AIR CLEANER SYSTEM USING COLLAPSIBLE EXTENDED SURFACE FILTER - 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. | 04-23-2015 |
| 20150343358 | Air Filter Assembly Filling Plenum Interior Space - An air filter assembly for use with a plenum having an internal passage with a non-linear configuration comprising is provided. The air filter assembly includes a support assembly including a neck portion that is insertable into the internal passage in the plenum and a mounting face. The air filter assembly includes an air filter with a filter frame supporting a filter media. The filter frame has an annular mounting flange extending around a perimeter of an inlet side of the filter which is configured to be releasably connectable to the mounting face of the support assembly. An outlet side of the filter includes a plurality of planar sections that extend at non-90° angles relative to each other and that are configured to be complementary to the internal passage of the plenum. | 12-03-2015 |
| 20160030876 | AIR FILTER UNIT - An air filter unit has a pleated filter medium with a zigzag shape in which a fibrous filter medium has been folded multiple times. The coefficients of linear expansion of the space-supporting members provided in each of the multiple folded spaces of the pleated filter medium are equal to or greater than the coefficient of linear expansion of the metal filter frame of the filter unit. The linear expansion coefficients of first space-supporting members are smaller than the linear expansion coefficient of a second space-supporting member. The first space-supporting members are provided in side portion regions including both side portions positioned at outermost sides of the pleated filter medium in a second direction perpendicular to the first direction. The second space-supporting member is provided in a central portion region sandwiched between the side portion regions. | 02-04-2016 |
| 20160144311 | AIR CLEANER - An air cleaner includes a housing, a pleated filter element, and a spacing piece. The filter element is accommodated in the housing. The spacing piece is arranged between an inner surface of the housing and one of the pleats of the filter element that is located at an end of the filter element. The spacing piece maintains a space between the inner surface of the housing and the one of the pleats located at the end of the filter element. | 05-26-2016 |
| 20160158678 | VENTILATION MEMBER - A ventilation member ( | 06-09-2016 |
| 20180021716 | CONFORMABLE PLEATED AIR FILTER WITH BRIDGING FILAMENTS | 01-25-2018 |
| 20220136467 | Cover Rigidity Reinforcement Member of Air Cleaner and Air Cleaner Including the Same - An air cleaner includes an intake filter seated on an air cleaner body, an air cleaner cover spaced apart from the intake filter and coupled to the air cleaner body, and a cover rigidity reinforcement member detachably coupled to the intake filter and configured to restrict displacement toward the intake filter. The intake filter includes a non-woven fabric configured to filter foreign matters of introduced outside air, and a filter frame surrounding and fixing a circumference of the non-woven fabric. | 05-05-2022 |
