WO2014040615A1 - Filter assembly and filter assembly manufacturing method - Google Patents
Filter assembly and filter assembly manufacturing method Download PDFInfo
- Publication number
- WO2014040615A1 WO2014040615A1 PCT/EP2012/067746 EP2012067746W WO2014040615A1 WO 2014040615 A1 WO2014040615 A1 WO 2014040615A1 EP 2012067746 W EP2012067746 W EP 2012067746W WO 2014040615 A1 WO2014040615 A1 WO 2014040615A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- media pack
- sealed
- filter assembly
- frame structure
- media
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 74
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000002245 particle Substances 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 37
- 230000000087 stabilizing effect Effects 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000010410 layer Substances 0.000 description 42
- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 238000001914 filtration Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- -1 Polypropylene Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920001944 Plastisol Polymers 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
- B01D46/121—V-type arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2271/00—Sealings for filters specially adapted for separating dispersed particles from gases or vapours
Definitions
- the present invention relates to filter assemblies for removing particles from an air flow, and more particularly to a filter assembly comprising pleated media packs arranged in a frame structure, and a corresponding method for manufacturing such a filter assembly.
- Filter assemblies comprising pleated media packs disposed in a frame structure are known.
- a pleated filter pack is typically formed from a sheet of filter media, e.g. a fiberglass sheet, or a nonwoven polyester sheet, which is pleated to increase the effective filtering area of the filter body.
- the media pack is typically arranged in a frame structure. To prevent air from bypassing the filtering area of the media pack as it flows through the filter assembly, the edges of the media pack need to be sealed against the frame structure.
- edges of the filter media pack having accordion like folds are generally referred to as open ends of the filter media pack.
- Edges of the filter media pack at the first and last pleat are referred to as closed ends.
- a known method to seal open ends when arranging media packs in the frame structure of the filter media pack is shown in US 2007/0204578 A1 , which discloses a filter assembly comprising a pleated filter media pack which is arranged in a frame structure.
- the frame structure comprises a top panel and a bottom panel at which open ends of the pleated filter media pack are adhered and sealed by means of an adhesive, like a hot melt or other filter securing adhesive applied to the top and bottom panels of the frame assembly.
- the open ends of the pleated media pack are subsequently put in contact with the adhesive as the filter assembly is mounted.
- the adhesive is then allowed to cure. This manner of sealing the media pack to the housing generally may provide a reliable seal, but requires a substantial amount of raw material, i.e. adhesive, and is time consuming to perform.
- This object and other objects are achieved by a method according to the present invention as defined in claim 1 of the appended claims.
- This object and other objects are also achieved by a filter assembly as defined in claim 7 of the appended claims.
- Preferred embodiments of the present invention are defined in the dependent claims.
- a method for manufacturing a filter assembly for removing particles from an air stream comprising at least one media pack arranged in a frame structure.
- the media pack is pleated and has opposing first and second open ends.
- the method comprises for each media pack: sealing the first and second open ends in a first molding step, thereby providing a sealed first edge and a sealed second edge of each respective media pack, and subsequently arranging the at least one media pack in the frame structure and in a second molding step sealing the sealed first edge and the sealed second edge, respectively, to at least one frame element of the frame structure.
- the method is advantageous in that a stepwise sealing of the whole filter assembly is achieved. This simplifies the manufacturing process of the filter assembly and increases the yield.
- the open ends of the media pack is provided with a sealing layer, forming sealed edges of the media pack, which may be allowed to completely cure before the filters are mounted into the frame structure.
- the sealed edges further increases the mechanical stability of the media packs, which thereby facilitates the precision of the mounting of the filters into the frame structure.
- the sealed edges are sealed and fastened to the frame structure in the second molding step.
- the second molding step comprises providing a second molding compound layer in at least one frame element of the frame structure such that at least one sealed edge of the at least one media pack is embedded in the second molding compound layer, and curing the second molding compound layer. Since the open ends of the media packs are already provided with sealed edges, the required amount of molding compound in the second molding step to provide a controlled sealing against the frame structure is substantially decreased. This in turn decreases the required curing time for the second molding step for instance when utilizing adhesives, or other applicable molding compounds, having curing times that are dependent on the thickness/amount of material of the molding compound layer.
- the first molding step comprises for each open end of the media pack: providing a pot which is adapted to receive at least the open end, arranging the open end and a first molding compound layer in the pot, and curing the first molding compound layer.
- the open end is embedded in the molding compound layer.
- the pot advantageously increases the stiffness of the sealed edge. Further, the pot is arranged to provide a controlled outer edge profile of the sealed edge, which facilitates the mounting of the filters in the frame structure, e.g. by providing positioning features.
- the surface structure or selected outer edge profile of the pot is selected to increase the strength of the joining between the sealed edges and the frame structure provided in the second molding step.
- the method further comprises arranging a stabilizing element onto the media pack.
- the stabilizing element is arranged to cover substantially the whole filtering area of the media packs, and to provide stabilization along the edges of the media pack.
- the stabilizing element is arranged on the media pack prior to the step of curing the first molding layer. Further, when an outer frame of the stabilizing element is arranged to substantially extend along a corresponding outer edge of the media pack, which edge is an open end thereof, that frame element of the stabilizing element is sealed together with the open end in the first molding step, which is advantageous.
- the media pack and the stabilizing element then form a self sustained filter unit.
- it further comprises providing the second molding compound layer in at least one further frame element of the frame structure, such that at least one closed end of the at least one media pack is embedded in the second molding compound layer, and curing the second molding compound layer.
- a filter assembly for removing particles from an air stream comprising: at least one media pack which is pleated, and having opposing first and second open ends.
- the filter assembly further comprises a frame structure into which the at least one media pack is arranged.
- the first and second open ends of each media pack are sealed by means of a first sealing layer arranged to embed the open ends thereby forming sealed edges of the media pack.
- the filter assembly comprises at least one second sealing layer arranged at at least one frame element of the frame structure, which second sealing layer is arranged to embed at least one sealed edge of the media pack, thereby securing and sealing the media pack to the filter element.
- the double sealing layer arrangement of the present filter assembly provides a secure sealing of the filters to the filter structure, which requires less molding compound material, and which ensures a reliable joining between the media pack and the frame structure.
- each sealed edge of the media pack further comprises a respective pot which is adapted to receive at least the open end of the media pack and which is secured to the media pack by means of the first sealing layer, which is advantageous as described above.
- the second sealing layer is arranged at at least one further frame element of the frame structure to embed at least one closed end of the at least one media pack, thereby securing and sealing the media pack to the further frame element, which provides an improved joining of the filters against the frame structure.
- the filter assembly of the invention further comprises a stabilizing element arranged onto each media pack, which is advantageous as described above.
- frame elements of the stabilizing element extending along an open end of the filter media pack are sealed by the first sealing layer, such that the filter media pack and the stabilizing element form a separate filter unit which after curing of the first sealing layer is arranged in the frame structure.
- the filter assembly of the invention further comprises at least one spacer element for providing a distance between the sealed edge and the frame structure.
- the spacer elements may optionally be arranged directly on the sealed edge itself, as illustrated in Fig. 2c), or as part of the surface of the frame structure element that faces the sealed edge (not shown).
- the spacer elements facilitate assembling of the filter assembly by centering the filters in the frame structure, and keeping the filters in place before the second molding step is performed. Further, the spacer elements ensure that the second molding compound material can flow in between the sealed edge and the frame structure to sufficiently embed the sealed edge before curing. Further, the spacer elements provide an increased bonding surface between the sealed edges and the frame structure, thereby increasing the strength of their mutual joining.
- the multiple media packs when comprising multiple media packs, are stacked in the frame structure in a V-orientation, which allows a large number of media packs (providing a large total filtering area) to be mounted in a relatively small space, thereby providing less friction with respect to the air flowing through the filter assembly, and therefore an increase in the filter assembly application life time.
- the filter assembly of the invention further comprises guiding tracks arranged in at least one frame element, and being arranged to orient the media packs in predetermined directions.
- the guiding tracks may be arranged to form a V-orientation of the stacked multiple media packs.
- Fig. 1 a) is a schematic exploded view of a filter of an embodiment of a filter assembly according to the invention
- 1 b) is a perspective exploded view
- c) is a perspective view, respectively, of an embodiment of a filter assembly according to the invention
- Fig. 2a) - 2f) are schematic cross-sectional close up views illustrating embodiments of a filter assembly according to the invention.
- Fig. 3 is a flow chart schematically illustrating embodiments of a method for manufacturing a filter assembly according to the invention.
- Embodiments of the invention generally provide a filter assembly and a method for manufacturing such a filter assembly.
- the filter assembly comprises filter media packs arranged in a frame structure, in which the filter media packs are arranged having individual sealing elements disposed on opposite open ends of the respective filter media pack by means of a first molding step during manufacturing of the filter assembly, and for which filter assembly the individual sealing elements of the filter media packs are further arranged having a second sealing element in which the individual sealing elements are embedded by means of a second molding step, thereby sealing and fixating the filter media packs to the frame structure.
- FIG. 1 a Shown in Fig. 1 a) is an exploded perspective view of a filter 1 10 of an embodiment of the filter assembly according to the present invention.
- the filter 1 10 comprises a rectangular pleated media pack 1 1 1 , having opposing first and second open ends 1 12, and opposing first and second closed ends 1 13.
- the media pack 1 1 1 is fabricated from a sheet of filter media, made of e.g. a fiberglass sheet, or a nonwoven polyester sheet, which is pleated to increase the effective filtering area of the filter body.
- the filter 1 10 is at its open ends 1 12 further provided with a respective sealing element 1 15 extending along the open ends 1 12 thereof, and which sealing element 1 15 is further arranged to embed the open ends 1 12 of the media pack 1 1 1 . Thereby, sealed edges of the media pack 1 1 1 are formed.
- Embodiments of the sealing element 1 15 will be explained in greater detail herein under with reference to Figs. 2 and 3.
- Fig. 1 b) is an exploded view of an embodiment of a filter assembly 100 of the present invention
- Fig. 1 c) is an illustration of the same embodiment when assembled.
- the filter assembly 100 includes a frame structure 150, and six filters 1 10 arranged in the frame structure 150.
- the frame structure 150 is here a frame assembly comprising a plurality of frame elements: side panels 152, a top panel 153, and three bottom panels 151 .
- the filters 1 10 are stacked in a repeated V-structure within the frame structure 150, having their opposite sealed edges 1 15 arranged facing a respective side panel 152, while at least one of the closed ends 1 13 of each stacked filter 1 10 bare against the closed end 1 13 ' of an adjacent filter 1 10 ' to form the V-structure.
- the opposite closed ends 1 13 of the filters 1 10 are arranged facing the top panel 153 and one of the bottom panels 151 , respectively. Further, when the filter assembly is mounted, the sealed edges formed by the sealing elements 1 15 and the closed ends 1 13 of the filters are sealed against the frame elements 151 , 152, 153 of the frame structure 150, such that substantially all of the air passing through the filter assembly will pass through the media packs 1 1 1 of the filters 1 10.
- the air enters the filter assembly 100 via the top panel 153 and exits the filter assembly 100 at the bottom panels 151 , although the opposite direction of the air flow is possible depending on the orientation of the filter assembly when installed in an air filtering system.
- the frame structure may be provided as a single piece, or contain other types and shapes of frame elements.
- the frame structure may contain merely one top panel and one bottom panel.
- the frame structure is preferably made of Acrylonitrile Butadiene Styrene (ABS) polymer or any other applicable thermosetting polymer like e.g. Polystyrene (PS), or Polypropylene (PP).
- ABS Acrylonitrile Butadiene Styrene
- PS Polystyrene
- PP Polypropylene
- the frame structure may further be electrically conducting.
- Fig. 3 is a flow chart illustrating embodiments of the method for manufacturing a filter assembly according to the present invention
- Fig. 2 shows cross sectional close up views of embodiments of a filter assembly according to the invention.
- the method begins at step S300 by providing at least one media pack.
- step S310 each provided media pack is provided with a sealing element on its respective open ends, by means of a first molding step, such that sealed edges of each media pack are obtained.
- step S310 comprises, referring now to Fig.
- sealing layer 1 15 is obtained by providing a molding compound, like a polymer material in a liquid or tixotrop phase, in which polymer material the open end 1 12 is emerged and which polymer is subsequently allowed to cure to provide the sealing layer 1 15.
- the polymer material may be a foamed adhesive or other polymer material which is provided over the open ends 1 12 of the media pack 1 1 1 by means of for instance molding or melting.
- step S320 of the method the media packs, which now are provided with the sealing layer, are arranged in the frame structure, and in a second molding step, represented by step S330, the sealed edges of the media packs are secured and sealed against the frame structure.
- step S330 the sealing edges of the media packs are secured and sealed against the frame structure.
- the second molding compound layer 162 is a liquid adhesive material provided in the frame element, here the side panel 152, before the sealed edge provided by the sealing layer 1 15 of the media pack 1 1 1 is emerged therein.
- the sealed edge of the media pack is a liquid adhesive material provided in the frame element, here the side panel 152, before the sealed edge provided by the sealing layer 1 15 of the media pack 1 1 1 is emerged therein.
- 1 1 1 1 is arranged in the side panel 152, and subsequently a sufficient amount of adhesive is added to the side panel 152 to embed the closed edges in the formed adhesive layer 162.
- the latter is favorable for instance when the filters and the frame structure are pre-mounted e.g. by utilizing snap fit connections, and subsequently provided with the second sealing layer.
- step S310 in Fig. 3 an additional step S301 : providing a pot 216 adapted to receive the open end 1 12 of the media pack 1 1 1 , is added to the method.
- the sealing element 215 is formed by arranging a first molding compound layer 217 in the pot 216 such that the open end 1 12, when emerged in the pot 216, is embedded in the first molding compound layer 217.
- the first molding compound layer 217 is then cured such that the open end 1 12 of the media pack 1 1 1 is sealed and fixated in the pot 216.
- a pot as used herein is a receptacle adapted to receive at least an open end of the pleated media pack, and the molding compound layer in which the open end of the pleated media pack is embedded.
- the pot may be
- any suitable material such as galvanized steel, aluminum, brass, carbon steel, or injection molded plastics such as high density polyethylene, polypropylene, nylon, polyvinylchloride, Acrylonitrile Butadiene Styrene (ABS), or Polystyrene (PS).
- suitable material such as galvanized steel, aluminum, brass, carbon steel, or injection molded plastics such as high density polyethylene, polypropylene, nylon, polyvinylchloride, Acrylonitrile Butadiene Styrene (ABS), or Polystyrene (PS).
- ABS Acrylonitrile Butadiene Styrene
- PS Polystyrene
- the first molding compound layer 217 is a liquid adhesive material provided into the pot 216 before the open end 1 12 of the media pack 1 1 1 is emerged therein.
- the open end 1 12 of the media pack 1 1 1 is arranged in the pot 216 and subsequently a sufficient amount of adhesive is added to the pot 216 to embed the open end 1 12 in the formed adhesive layer 217.
- the pot is arranged having spacer elements arranged at a sealed edge of the at least one media pack, or at a frame element surface facing a sealed edge of the at least one media pack.
- spacer elements 318 as illustrated in the embodiment shown in Fig. 2c) are arranged on the surface of the pot 316 which faces the frame element, side panel 152.
- the spacer elements may optionally be arranged on a surface of a frame structure that faces the sealed edge (not shown).
- the second molding step, step S330 further comprises providing the second molding compound layer 162 in at least one further frame element, here front panel 153, which is thereby connected to the side panel 152, of the frame structure 150, such that at the closed end 1 13 of the media pack 1 1 1 is embedded in the second molding compound layer 162.
- the closed end 1 13 of the media pack is efficiently sealed and fastened to the frame structure.
- the frame structure is at surfaces facing the filter sides provided with guiding tracks or protrusions to facilitate the positioning of the filters with respect to the frame structure.
- FIG. 2 e shows a cross section A of a filter assembly as illustrated in Fig. 1 b) and 1 c), in which filters 210 are arranged in a side panel 252, provided with receiving tracks 256 in which the sealed edges of the filters 210 are emerged and sealed and fixated in the second molding step.
- the receiving tracks 256 are formed by protruding tracks 255 arranged in the surface of the side panel 252 which faces the filters 210.
- a stabilizing element is arranged on the media pack to improve the strength of the media pack.
- Fig. 2f shows a cross section A of a filter assembly as illustrated in Fig. 1 b) and 1 c), in which two filters 510 are arranged in a frame element, here side panel 152.
- the media packs 1 1 1 are, preferably before being emerged in a pot 516 in the first molding step S310, provided with a stabilizing element 154, which is emerged together with the media pack 1 1 1 into the first molding compound layer 517, and subsequently fixated and sealed within the sealed edge, i.e. with the sealing element 515 formed in the first molding step S310.
- the stabilizing element may be designed to substantially cover the filtering area of the media pack. Any frame element of the stabilizing element which extends along the open end of the media pack may then be sealed in the first molding step. Any frame element of the stabilizing element which extends along a closed end of the media pack may be sealed and fastened to the frame structure in the second molding step.
- the molding compound used in the first and/or second molding step is selected from suitable single or multi-component materials which can be dispensed as a liquid and subsequently be hardened, i.e. cured, such as a material chosen from a group consisting of polyvinylchloride plastisols, polyurethanes epoxies, silicones and ceramics.
- the filter media preferably comprises fibers of glass, polymers, or cellulose, or a combination thereof, and may be a woven or nonwoven fabric, e.g. nonwoven needle felt.
- the filter media may be spunbonded, air-laid, dry-laid, wet-laid, spun-bonded, melt-blown, or electro- spun fabrics.
- the filter media may further be impregnated for instance to make the filter waterproof, or made electrically conductive.
Abstract
Description
Claims
Priority Applications (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12756500.0A EP2895251B1 (en) | 2012-09-12 | 2012-09-12 | Filter assembly and filter assembly manufacturing method |
US14/427,584 US9694307B2 (en) | 2012-09-12 | 2012-09-12 | Filter assembly and filter assembly manufacturing method |
BR112015005367A BR112015005367B8 (en) | 2012-09-12 | 2012-09-12 | FILTER ASSEMBLY AND FILTER ASSEMBLY MANUFACTURING METHOD |
CN201280075763.1A CN104768628B (en) | 2012-09-12 | 2012-09-12 | The manufacture method of filter assemblies and filter assemblies |
PCT/EP2012/067746 WO2014040615A1 (en) | 2012-09-12 | 2012-09-12 | Filter assembly and filter assembly manufacturing method |
CN201280075771.6A CN104755150B (en) | 2012-09-12 | 2012-12-05 | backing mesh structure |
US14/427,605 US10369507B2 (en) | 2012-09-12 | 2012-12-05 | Filter frame |
EP12795010.3A EP2895250B1 (en) | 2012-09-12 | 2012-12-05 | Backing net structure |
EP12799545.4A EP2895252B1 (en) | 2012-09-12 | 2012-12-05 | A filter frame |
PCT/EP2012/074546 WO2014040658A1 (en) | 2012-09-12 | 2012-12-05 | Backing net structure |
US14/427,609 US10071331B2 (en) | 2012-09-12 | 2012-12-05 | Backing net structure |
PCT/EP2012/074548 WO2014040659A1 (en) | 2012-09-12 | 2012-12-05 | A filter frame |
PCT/EP2012/074545 WO2014040657A1 (en) | 2012-09-12 | 2012-12-05 | A filter frame |
US14/427,392 US9737838B2 (en) | 2012-09-12 | 2012-12-05 | Filter frame |
BR112015005591A BR112015005591B8 (en) | 2012-09-12 | 2012-12-05 | SUPPORT SCREEN, FILTER MEDIUM PACKAGE FOR A TYPE-V FILTER AND TYPE-V FILTER PACKAGE |
EP12805647.0A EP2895253B1 (en) | 2012-09-12 | 2012-12-05 | A filter frame |
IN2489DEN2015 IN2015DN02489A (en) | 2012-09-12 | 2015-03-26 | |
IN2490DEN2015 IN2015DN02490A (en) | 2012-09-12 | 2015-03-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2012/067746 WO2014040615A1 (en) | 2012-09-12 | 2012-09-12 | Filter assembly and filter assembly manufacturing method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014040615A1 true WO2014040615A1 (en) | 2014-03-20 |
Family
ID=46826539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/067746 WO2014040615A1 (en) | 2012-09-12 | 2012-09-12 | Filter assembly and filter assembly manufacturing method |
Country Status (6)
Country | Link |
---|---|
US (1) | US9694307B2 (en) |
EP (1) | EP2895251B1 (en) |
CN (1) | CN104768628B (en) |
BR (1) | BR112015005367B8 (en) |
IN (1) | IN2015DN02489A (en) |
WO (1) | WO2014040615A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106999821A (en) * | 2014-09-25 | 2017-08-01 | 卡菲尔有限公司 | V-type filter frame |
EP3322504A4 (en) * | 2015-07-15 | 2019-02-27 | Baldwin Filters, Inc. | Multi-component holding assembly for multi-panel air filter |
US10369508B2 (en) | 2017-02-23 | 2019-08-06 | Baldwin Filters, Inc. | Filter with shield features |
US10870074B2 (en) | 2015-07-15 | 2020-12-22 | Baldwin Filters, Inc. | Multi-component holding assembly for multi-panel air filter |
US10974188B2 (en) | 2015-07-15 | 2021-04-13 | Baldwin Filters, Inc. | Filter with shield features |
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Publication number | Priority date | Publication date | Assignee | Title |
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US10071331B2 (en) * | 2012-09-12 | 2018-09-11 | Camfil Ab | Backing net structure |
CN105148436A (en) * | 2015-08-31 | 2015-12-16 | 福建新偌环境科技有限公司 | Multifunctional fire extinguishing device ejecting double fire extinguishing media |
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WO2018191147A1 (en) | 2017-04-11 | 2018-10-18 | Cummins Filtration Ip, Inc. | Panel filter element |
CN111886063A (en) * | 2018-02-12 | 2020-11-03 | 康明斯滤清系统知识产权公司 | Spray-coated and molded polymer layer wrapper for filter media |
CA3190795A1 (en) * | 2020-08-07 | 2022-02-10 | Healthway Home Products Company Inc. | V-bank filter |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5487767A (en) * | 1993-09-30 | 1996-01-30 | Dana Corporation | Radially sealed air filters |
US5512074A (en) * | 1994-09-19 | 1996-04-30 | Farr Company | Air filter assembly |
US6485538B1 (en) * | 1999-03-31 | 2002-11-26 | Yugen Caisha Infinity Kenkyusho | Air-conditioning air filter |
US20040074387A1 (en) * | 2002-07-12 | 2004-04-22 | Jaisinghani Rajan A. | Low pressure drop deep electrically enhanced filter |
US20070204578A1 (en) | 2006-03-01 | 2007-09-06 | Camfil Ab | Method of making a filter assembly |
US20070204577A1 (en) * | 2006-03-01 | 2007-09-06 | Camfil Ab | Reduced adhesive filter assembly |
JP2008253886A (en) * | 2007-04-02 | 2008-10-23 | Nitta Ind Corp | Air filter |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857017A (en) | 1955-11-14 | 1958-10-21 | American Air Filter Co | Corrugated web filter |
US3494113A (en) | 1968-05-22 | 1970-02-10 | Microtron Corp | Air filter assembly and sub-assemblies |
FR2088900A5 (en) * | 1970-04-29 | 1972-01-07 | Filtration Ste Indle | Gas filter cell - for use with toxic or radioactive solids in gases and/or hot gases |
DE2739815C3 (en) | 1977-09-03 | 1979-12-06 | Ceagfilter Und Entstaubungstechnik Gmbh, 4600 Dortmund | Air filter cell |
US4364751A (en) * | 1980-10-10 | 1982-12-21 | Donaldson Company, Inc. | Self-cleaning pulsed air cleaner |
DE3150392A1 (en) | 1981-12-16 | 1983-06-23 | Delbag-Luftfilter Gmbh, 1000 Berlin | COMPACT UNIVERSAL LARGE AREA FILTER SYSTEM ACCORDING TO THE MODULE-BASED PRINCIPLE FOR AIR PURIFICATION |
US4732675A (en) | 1983-01-10 | 1988-03-22 | Mcneilab, Inc. | Density gradient filtration media |
JP3284652B2 (en) | 1993-03-11 | 2002-05-20 | 松下電器産業株式会社 | air purifier |
US5584988A (en) | 1993-11-11 | 1996-12-17 | Nissan Motor Co., Ltd. | Filter for in-tank fuel pump |
US5618419A (en) | 1994-05-24 | 1997-04-08 | Aquaria, Inc. | Filter cartridge with back structure defining a weir |
AU4954797A (en) | 1996-11-14 | 1998-06-03 | Mcleod Russel Holdings Plc | Air filter |
US6279570B1 (en) | 1999-03-02 | 2001-08-28 | 3M Innovative Properties Company | Filter support, assembly and system |
US6248155B1 (en) | 1999-08-13 | 2001-06-19 | Bemis Manufacturing Company | Combination humidifier and air purifier |
DE20002124U1 (en) | 2000-02-07 | 2000-04-13 | Pfannenberg Otto Gmbh | Air passage device |
GB2364256B (en) | 2000-05-16 | 2003-06-25 | Walker Filtration Ltd | Filter assembly |
US6447566B1 (en) | 2000-06-21 | 2002-09-10 | Freudenberg Nonwovens Limited Partnership | Air filtration system with recessed filter and edge banding |
GB0119523D0 (en) | 2001-08-10 | 2001-10-03 | Ever 1529 Ltd | Screen system |
US6692637B2 (en) | 2001-11-07 | 2004-02-17 | Tetra Holding (Us), Inc. | Dual density filter cartridge |
US6656243B2 (en) | 2002-02-06 | 2003-12-02 | Joseph Hodge | Filtered air vent |
EP1551530B8 (en) | 2002-07-18 | 2009-04-29 | Freudenberg Filtration Technologies, L.P. | Filter pack having nonwoven filter media and nonwoven edge banding frame |
GB0302927D0 (en) | 2003-02-08 | 2003-03-12 | Axiom Process Ltd | Screen mounting system |
US6955696B1 (en) | 2003-07-31 | 2005-10-18 | Filtration Group, Inc. | Filter frame and assembly |
US7255723B2 (en) | 2004-01-09 | 2007-08-14 | Aaf Mcquay, Inc. | Crest supported filter frame assembly and method |
JP4593224B2 (en) | 2004-03-30 | 2010-12-08 | ニチアス株式会社 | Chemical filter and manufacturing method thereof |
DE102006048076A1 (en) | 2006-10-09 | 2008-04-10 | Mann + Hummel Gmbh | Filter device, in particular for the filtration of combustion air in internal combustion engines |
WO2008001396A1 (en) | 2006-06-28 | 2008-01-03 | Gianus S.P.A. | Filter-holder case |
EP1878484B1 (en) | 2006-07-13 | 2009-12-02 | Pfannenberg GmbH | Air passing device |
DE202006010888U1 (en) | 2006-07-13 | 2006-09-28 | Pfannenberg Gmbh | Air passage device e.g. air filter, for use with e.g. housings of computer systems, has top lamella unit or grill lamella unit that is swivellably arranged in fan grill and actuated for opening of design cover |
DE102006043729A1 (en) | 2006-09-13 | 2008-03-27 | Mann + Hummel Gmbh | Filter or adsorber element with enclosed adsorption particles and a process for its preparation |
JP4699340B2 (en) | 2006-11-16 | 2011-06-08 | 日東電工株式会社 | Filter unit |
JP5106999B2 (en) | 2007-11-16 | 2012-12-26 | 日東電工株式会社 | Filter unit panel |
JP2009154150A (en) * | 2007-12-06 | 2009-07-16 | Nitto Denko Corp | Air filter |
US8425644B2 (en) | 2008-01-31 | 2013-04-23 | Anders Sundvik | High flow V-bank filter |
KR20110002010A (en) | 2008-02-26 | 2011-01-06 | 만 운트 훔멜 게엠베하 | Filter device, in particular air filter for an internal combustion engine |
US8142537B2 (en) | 2009-03-17 | 2012-03-27 | Mann + Hummel Gmbh | Support grid and alignment appartus for a filter element and housing |
CN201461157U (en) * | 2009-05-31 | 2010-05-12 | 重庆宗申技术开发研究有限公司 | Filter member structure of air filter of motorcycle |
WO2010151580A1 (en) | 2009-06-24 | 2010-12-29 | Donaldson Company, Inc. | Filter arrangement and methods |
US8231700B2 (en) | 2009-06-25 | 2012-07-31 | 3M Innovative Properties Company | Pleated filter with tridirectional scrim |
DE102009060214A1 (en) | 2009-12-23 | 2011-06-30 | MAHLE International GmbH, 70376 | Filter element and manufacturing process |
DE102010016504B4 (en) | 2010-04-19 | 2014-05-15 | Rittal Gmbh & Co. Kg | Filter unit for a control cabinet |
US8523972B2 (en) | 2010-07-19 | 2013-09-03 | Fais Inc. | Atmospheric air filtration unit, air pre-filtration unit, and associated air filtration system for removeable attachment thereof |
US8764870B2 (en) | 2010-09-16 | 2014-07-01 | Cummins Filtration Ip, Inc. | V-shaped filter and fixture |
CN202398240U (en) * | 2012-01-14 | 2012-08-29 | 苏州市恩威特环境技术有限公司 | Seal structure of high-efficiency filter |
-
2012
- 2012-09-12 US US14/427,584 patent/US9694307B2/en active Active
- 2012-09-12 EP EP12756500.0A patent/EP2895251B1/en active Active
- 2012-09-12 WO PCT/EP2012/067746 patent/WO2014040615A1/en active Application Filing
- 2012-09-12 CN CN201280075763.1A patent/CN104768628B/en active Active
- 2012-09-12 BR BR112015005367A patent/BR112015005367B8/en active IP Right Grant
-
2015
- 2015-03-26 IN IN2489DEN2015 patent/IN2015DN02489A/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5487767A (en) * | 1993-09-30 | 1996-01-30 | Dana Corporation | Radially sealed air filters |
US5512074A (en) * | 1994-09-19 | 1996-04-30 | Farr Company | Air filter assembly |
US6485538B1 (en) * | 1999-03-31 | 2002-11-26 | Yugen Caisha Infinity Kenkyusho | Air-conditioning air filter |
US20040074387A1 (en) * | 2002-07-12 | 2004-04-22 | Jaisinghani Rajan A. | Low pressure drop deep electrically enhanced filter |
US20070204578A1 (en) | 2006-03-01 | 2007-09-06 | Camfil Ab | Method of making a filter assembly |
US20070204577A1 (en) * | 2006-03-01 | 2007-09-06 | Camfil Ab | Reduced adhesive filter assembly |
JP2008253886A (en) * | 2007-04-02 | 2008-10-23 | Nitta Ind Corp | Air filter |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106999821A (en) * | 2014-09-25 | 2017-08-01 | 卡菲尔有限公司 | V-type filter frame |
CN106999821B (en) * | 2014-09-25 | 2020-05-15 | 康斐尔集团公司 | V-shaped filter frame |
EP3322504A4 (en) * | 2015-07-15 | 2019-02-27 | Baldwin Filters, Inc. | Multi-component holding assembly for multi-panel air filter |
US10870074B2 (en) | 2015-07-15 | 2020-12-22 | Baldwin Filters, Inc. | Multi-component holding assembly for multi-panel air filter |
US10974188B2 (en) | 2015-07-15 | 2021-04-13 | Baldwin Filters, Inc. | Filter with shield features |
EP3871750A1 (en) * | 2015-07-15 | 2021-09-01 | Baldwin Filters, Inc. | Multi-component holding assembly for multi-panel air filter |
US10369508B2 (en) | 2017-02-23 | 2019-08-06 | Baldwin Filters, Inc. | Filter with shield features |
Also Published As
Publication number | Publication date |
---|---|
US9694307B2 (en) | 2017-07-04 |
IN2015DN02489A (en) | 2015-09-11 |
US20150246308A1 (en) | 2015-09-03 |
CN104768628A (en) | 2015-07-08 |
BR112015005367B8 (en) | 2022-08-02 |
EP2895251B1 (en) | 2018-12-26 |
BR112015005367A2 (en) | 2017-07-04 |
CN104768628B (en) | 2017-11-24 |
EP2895251A1 (en) | 2015-07-22 |
BR112015005367B1 (en) | 2020-11-24 |
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