WO2022109017A1 - Filtre doté d'éléments de protection - Google Patents

Filtre doté d'éléments de protection Download PDF

Info

Publication number
WO2022109017A1
WO2022109017A1 PCT/US2021/059713 US2021059713W WO2022109017A1 WO 2022109017 A1 WO2022109017 A1 WO 2022109017A1 US 2021059713 W US2021059713 W US 2021059713W WO 2022109017 A1 WO2022109017 A1 WO 2022109017A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter media
filter
panel
support
end cap
Prior art date
Application number
PCT/US2021/059713
Other languages
English (en)
Inventor
Benny Mathew VARGHESE
Levi William DEXTER
Brian T. Ehrenberg
Original Assignee
Baldwin Filters, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/100,714 external-priority patent/US20210069629A1/en
Application filed by Baldwin Filters, Inc. filed Critical Baldwin Filters, Inc.
Priority to EP21831393.0A priority Critical patent/EP4221866A1/fr
Publication of WO2022109017A1 publication Critical patent/WO2022109017A1/fr

Links

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
    • B01D46/10—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
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/06—Details of supporting structures for filtering material, e.g. cores

Definitions

  • This invention generally relates to filters and more particularly to air filters and more particularly to air filters having panels of filter media.
  • Filter elements are used to filter fluid such as air to prevent damage or reduced functionality of downstream systems.
  • the filter elements are configured to be a replacement part such that when they become clogged or their useful life is otherwise spent, they can be replaced.
  • One particular type of filter element utilizes a plurality of panels of filter media operably mounted to a frame.
  • the panels of filter media are operably sealed relative to each other on three sides to form a cavity that is open on a single side.
  • filter housing includes covers that include projections that extend toward the filter element. Unfortunately, if these projections are pushed into the pleated media, the pleated media can likewise be damaged.
  • the present invention relates to improvements over the state of the art for this type of filter element.
  • a filter element includes first and second media panels, a support frame, a base frame and first and second end cap structures is provided.
  • SUBSTITUTE SHEET (RULE 26) media panel defines a first, a second, a third, and a fourth side. For each filter media panel, the first and second sides are offset from one another and extend between the third and fourth sides which are offset from one another.
  • the support frame maintains the first and second filter media panels in a generally spaced orientation forming a cavity therebetween.
  • the base frame defines a first opening in fluid communication with the cavity.
  • the first end cap structure operably seals the third side of the first and second filter media panels and the second end cap structure operably seals the fourth side of the first and second filter media panels.
  • the base frame has a first portion captured in the first end cap structure and a second portion captured in the second end cap structure.
  • the first portion of the base frame is a first outward extending flange that is received in the first end cap structure and the second portion of the base frame is a second outward extending flange that is received in the second end cap structure.
  • the first and second flanges are on opposite sides of the first opening and extend outward away from one another.
  • the support frame defines first, second, third, and fourth sides with, the first and second sides offset from one another and extending between the third and fourth sides.
  • the first side of the support frame is positioned adjacent the first sides of the first and second filter media panels.
  • the second side of the support frame is positioned adjacent the second sides of the first and second filter media panels.
  • the third side of the support frame is positioned adjacent the third sides of the first and second filter media panels.
  • the fourth side of the support frame is positioned adjacent the fourth sides of the first and second filter media panels.
  • the third side of the support frame is captured in the first end cap structure and the fourth side of the support frame is captured in the second end cap structure.
  • the filter element includes a second side support structure adjacent the second sides of the first and second media panels and the support frame.
  • the second side support structure extends between first and second ends. The first end is
  • SUBSTITUTE SHEET (RULE 26) captured in the first end cap structure and the second end is captured in the second end cap structure.
  • the first and second filter media panels are pleated media panels. At least one pleat of the first and second filter media panels is pinched between the second side of the support frame and the second side support structure.
  • a seal material is interposed between the second side of the support frame and the second side support structure.
  • the seal material seals the second side of the first and second filter media panels to at least one of the second side of the support frame and the second side support structure.
  • the second side support structure includes a handle member.
  • the second side of the support frame overlaps, at least in part, the second sides of the first and second filter media panels.
  • a housing seal is carried by the base frame for operably sealing the filter element to a housing structure.
  • the first and second end cap structures are each composite structures including a cupped end cap and adhesive within the cupped end cap. At least the adhesive captures the corresponding side of the support frame, portion of the base frame and sealing the corresponding sides of the first and second filter media panel.
  • the first and second end cap structures are formed from rigid urethane.
  • the rigid urethane captures the corresponding side of the support frame, portion of the base frame and sealing the corresponding sides of the first and second filter media panel.
  • first sides of the first and second filter media panels are sealingly attached to the base frame.
  • the first side of the support frame defines a second opening in fluid communication with the cavity between the first and second filter media panels.
  • the first, second, third, and fourth sides of the support frame bound first and second flow openings.
  • the first flow opening being adjacent the first filter media panel and the second flow opening being adjacent the second filter media panel.
  • the first and second filter media panels define interior faces.
  • the interior faces of the first and second filter media panels generally facing each other.
  • the support frame and base frame maintain the interior faces of the first and second filter media panels in a non-parallel orientation with the first sides of the first and second panels spaced apart from one another at a greater distance than the second sides of the first and second panels such that the cavity is generally wedge shaped.
  • each of the first and second portions of the base frame defines first and second tapered locating surfaces.
  • the first side of the first filter media panel is supported on the first tapered locating surfaces and the first side of the second filter media panel supported on the second tapered locating surfaces.
  • first tapered locating surfaces are substantially parallel to the first side of the first filter media panel and the second tapered locating surfaces are substantially parallel to the first side of the second filter media panel.
  • first tapered locating surfaces are substantially perpendicular to the interior face of the first filter media panel and the second tapered locating surfaces are substantially perpendicular to the interior face of the second filter media panel.
  • the first and second filter media panels are pleated media panels formed from a sheet of filter media having a plurality of panels formed by alternating folds, the folds extending longitudinally between the third and fourth sides of the filter media panels, the first side of the filter media panels being adjacent the base frame and the
  • SUBSTITUTE SHEET (RULE 26) second side of the filter media panel being spaced apart from the first side and the base frame, the third and fourth sides of the filter media panels extending between the first and second sides.
  • a filter element including first and second filter media panels, a support frame and a base frame.
  • Each filter media panel defines first, second, third and fourth sides. The first and second sides are offset from one another and extend between the third and fourth sides.
  • the first and second filter media panels define interior faces. The interior faces of the first and second filter media panels generally facing each other.
  • the support frame maintains the first and second filter media panels in a generally spaced orientation forming a cavity therebetween.
  • the base frame defines a first opening in fluid communication with the cavity.
  • the support frame and base frame maintaining the interior faces of the first and second filter media panels in a non-parallel orientation with the first sides of the first and second panels spaced apart from one another at a greater distance than the second sides of the first and second panels such that the cavity is generally wedge shaped.
  • the base frame defines first and second tapered locating surfaces. The first side of the first filter media panel supported on the first tapered locating surfaces and the first side of the second filter media panel supported on the second tapered locating surfaces.
  • first and second tapered locating surfaces are nonperpendicular and non-parallel to one another.
  • the first and second tapered locating surfaces are nonperpendicular and non-parallel to a bisecting plane extending between the first and second filter media panels.
  • the first and second tapered locating surfaces extend at a first angle relative to the bisecting plane.
  • the interior faces of the first and second filter media panels extending at a second angle relative to the bisecting plane, the first and second angles being substantially complimentary .
  • first tapered locating surfaces are substantially parallel to the first side of the first filter media panel and the second tapered locating surfaces are substantially parallel to the first side of the second filter media panel.
  • the first tapered locating surfaces are substantially perpendicular to the interior face of the first filter media panel and the second tapered locating surfaces are substantially perpendicular to the interior face of the second filter media panel.
  • a filter element including first and second filter media panels, a support frame and a base frame.
  • Each filter media panel defines first, second, third and fourth sides. The first and second sides are offset from one another and extend between the third and fourth sides.
  • the first and second filter media panels define interior faces. The interior faces of the first and second filter media panels generally facing each other.
  • the support frame maintains the first and second filter media panels in a generally spaced orientation forming a cavity therebetween.
  • the base frame defines a first opening in fluid communication with the cavity.
  • the support frame maintains the interior faces of the first and second filter media panels in a non-parallel orientation with the first sides of the first and second panels being spaced apart from one another at a greater distance than the second sides of the first and second panels such that the cavity is generally wedge shaped.
  • the support frame being attached to the base frame.
  • the support frame is snap attached to the base frame.
  • a handle member is attached to the support frame proximate the second sides of the filter media panels.
  • the support frame has receptacles and the handle member has projections that extend into the receptacles.
  • the base frame has a first portion captured in a first end cap structure and a second portion captured in a second end cap structure.
  • the first end cap structure operably seals the third side of the first and second filter media panels and the second end cap structure operably seals the fourth side of the first and second filter media panels.
  • the support frame has first, second, third and fourth sides with, the third and fourth sides being spaced apart and extending
  • SUBSTITUTE SHEET (RULE 26) between the first and second sides.
  • the third side of the support frame is captured by the first end cap structure and the fourth side of the support frame is captured by the second end cap structure.
  • a first end of the handle member is captured by the first end cap structure and a second opposed end of the handle member is captured by the second end cap structure.
  • the handle member includes a gripping portion configured to be gripped by a user.
  • the gripping portion is positioned between and offset from the first and second ends of the handle member.
  • the end cap structures are generally cup shaped and define an end cap cavity holding an adhesive therein.
  • the end cap structures capture the components within the adhesive within the end cap cavity.
  • a frame for holding first and second filter media panels including a base frame and a support frame.
  • the base frame defines a first opening therethrough.
  • the support frame is attached to the base frame and extends outward therefrom.
  • the base frame and support frame are configured to maintain the first and second filter media panels in a generally spaced orientation forming a cavity therebetween when mounted to the support frame and base frame.
  • the support frame and base frame maintain interior faces of the first and second filter media panels in a non-parallel orientation with the first sides of the first and second panels spaced part from one another at a greater distance than the second sides of the first and second panels such that the cavity is generally wedge shaped.
  • the support frame has first, second, third and fourth sides.
  • the first side defines a second opening in fluid communication with the first opening in the base frame.
  • the third and fourth sides have converging edges that converge proximate the second side.
  • the third side is formed by a pair of third side elongated segments that converge at the second side and a third side cross brace that extends between the pair of third side elongated segments.
  • the third side cross brace is closer to the first side than the second side.
  • a pair of fourth side elongated segments converge at the second side and a fourth side cross brace extends between the pair of first side elongated segments.
  • the fourth side cross brace is closer to the first side than the second side.
  • the first side of the support frame is provided by a pair of first side elongated segments that extend generally parallel to one another between the third and fourth sides.
  • the third and fourth side cross braces are located at the first side.
  • the third and fourth side cross braces include connection members for connecting the support frame to the main frame.
  • a filter element including first and second filter media panels, a support frame, a base frame and first and second support screens.
  • Each filter media panel defines first, second, third and fourth sides. The first and second sides are offset from one another and extend between the third and fourth sides.
  • the first and second filter media panels define interior faces. The interior faces of the first and second filter media panels generally face each other.
  • the support frame maintains the first and second filter media panels in a generally spaced orientation forming a cavity therebetween.
  • the support frame is located between first and second filter media panels.
  • the base frame defines a first opening in fluid communication with the cavity and is located proximate the first sides of the first and second filter media panels.
  • Each screen is substantially L-shaped having a first side portion and an interior face portion.
  • the first side portion of the first support screen is adjacent the first side of the first filter media panel and the interior face portion of the first support screen is adjacent the interior face of the first filter media.
  • the first side portion of the second support screen is adjacent the first side of the second filter media panel and the interior face portion of the second support screen is adjacent the interior face of the second filter media.
  • the interior face portion of the first support screen is positioned between the support frame and the interior face of the first filter media panel and the first side portion of the first support screen is positioned between the base frame and the first side of the first filter media panel.
  • the interior face portion of the second support screen is positioned between the support frame and the interior face of the second filter media panel and the first side portion of the second support screen is positioned between the base frame and the first side of the second filter media panel.
  • each of the first and second support screens is formed from separate first and second pieces of screen with the first side portion being formed from the first piece of screen and the interior face portion being formed from the second piece of screen.
  • the first and second support screens are formed from a single piece.
  • a filter includes first and second media packs, a housing seal system, a handle and a shield element.
  • the first and second filter media packs extend from a first end to a second end.
  • the first end has a length dimension and a width dimension that extend transversely.
  • the width dimension is defined by the first and second media packs.
  • the first and second filter media packs converge at the first end and diverge when moving away from the first end toward the second end to define an air flow cavity therebetween.
  • the housing seal system is located at the second end.
  • a handle is located at the first end.
  • a shield element projects over the first and second media packs at the first end a span in the width direction of at least 40% of the width dimension defined by the first and second media packs and projecting a span in the length direction of at least 5% of the length dimension defined by the first end.
  • the shield element comprises wing panels covering the first and second filter media packs underneath the handle and in a central region along the length of the first end.
  • the shield element comprises wing panels covering the first and second filter media packs proximate at least one edge region along the length of the first end.
  • the wing panels extend over the first and second media packs at the first end in the length direction at least 0.5 inches.
  • the wing panels extend over the first and second media packs at the first end in the length direction at least 0.75 inches.
  • the span the shield element projects over the first and second media packs in the width direction is at least 75% of the width dimension of the first end.
  • the wing panels extend over the media pack at the first end at least 90% of the width dimension in the width direction.
  • the shield element is a preformed component secured to the first and second media packs.
  • the first and second filter media packs are pleated having pleat folds.
  • the filter further includes first and second end caps and a handle frame.
  • the first and second end caps are on opposite first and second sides of the first and second filter media packs.
  • the pleat folds run laterally between the first and second opposite sides and the end caps.
  • the handle frame is located at the first end and includes the handle extending from a bridge element.
  • the bridge element spans intermediate of the first and second filter media packs and between the first and second end caps.
  • the handle frame includes the shield element which projects laterally from the bridge element.
  • the shield element is located proximate a first end of the bridge element and extends partially into the first end cap defining an unexposed portion and extends partially out of the first end cap defining an exposed portion that is exposed exteriorly of the first end cap.
  • the exposed portion extends at least 0.5 inches in the length direction and the unexposed portion extends less than 0.5 inches in the length direction.
  • a filter including first and second filter media packs, a housing seal system, first and second end caps and a handle frame.
  • the first and second filter media packs extend from a first end to a second end.
  • the first end has a length dimension and a width dimension that extend transversely.
  • the first and second filter media packs converge at the first end and diverge when moving away from the first end toward the second end to define an air flow cavity therebetween.
  • the first and second filter media packs are pleated having pleat folds.
  • the housing seal system is at the second end.
  • the first and second end caps are on opposite first and second sides of the first and second filter media packs.
  • the pleat folds run laterally between the first and second opposite sides.
  • the handle frame is at the first end and includes a bridge element spanning intermediate of the first and second filter media packs and between the first and second end caps.
  • the handle frame includes a first shield element that includes at least one wing panel projecting laterally from the bridge element.
  • the first shield element is located proximate a first end of the bridge element and extends partially into the first end cap and partially out of the first end cap defining an exposed portion that is exposed exteriorly of the first end cap.
  • the exposed portion of the first shield element covers the first and second filter media packs in the width direction at least 75% of the width dimension and in the length direction at least 5% of the length.
  • the filter includes a second shield element located proximate a second end of the bridge element and which extends partially into the second end cap and partially out of the second end cap defining an exposed portion that is exposed exteriorly of the second end cap.
  • the filter further includes a third shield element located centrally along the length.
  • the third shield element is spaced from both the first and second shield elements along the length.
  • a housing and filter assembly in another embodiment, includes an air cleaner housing assembly and a filter.
  • the air cleaner housing assembly includes a
  • SUBSTITUTE SHEET (RULE 26) housing base defining a filter cavity and a housing lid removably covering the housing base to define a filter cavity.
  • the air cleaner assembly includes a clean air outlet and an unfiltered air inlet.
  • the housing lid comprises a tubular element projecting toward the housing base and into the cavity.
  • the filter is disposed in the filter cavity and arranged to filter air between the clean air outlet and the unfiltered air inlet.
  • the filter includes a filter media arrangement having a first end and a second end.
  • the filter includes a housing seal system at the second end.
  • the filter includes a frame member at the first end and comprises a first shield element.
  • the first shield element defines a perimeter larger than the tubular element to prevent the tubular element from contacting the filter media arrangement.
  • the frame member includes an outward extending handle member spaced away from the first shield element.
  • the handle member is received within the tubular member when the housing lid is attached to the housing base.
  • a filter including first and second filter media panels is provided.
  • Each filter media panel defines a first, a second, a third and a fourth side.
  • the first and second sides are offset from one another and extend between the third and fourth sides which are offset from one another.
  • a support frame maintains the first and second filter media panels in a generally spaced orientation forming a cavity therebetween.
  • a base frame defines a first opening in fluid communication with the cavity.
  • a seal gasket is attached to the base frame.
  • the base frame includes a plurality of openings through which the seal gasket extends. The seal gasket closes the openings.
  • a first end cap structure operably seals the third side of the first and second filter media panels.
  • a second end cap structure operably seals the fourth side of the first and second filter media panels.
  • the base frame has a first portion captured in the first end cap structure and a second portion captured in the second end cap structure.
  • the seal gasket is molded directly to the base frame and through the openings.
  • a filter element in an embodiment, includes a frame and a filter media pack.
  • the frame includes a panel support portion having opposed first and second panel supports and a first end positioned between the first and second panel supports.
  • the filter media pack has a
  • SUBSTITUTE SHEET (RULE 26) first portion of filter media positioned against the first panel support, a second portion of filter media positioned against the second panel support, and a connection region of filter media connecting the first and second portions of filter media.
  • the connection portion extends across the first end.
  • the first end is provided by a connection portion.
  • the connection portion is non-parallel and non-perpendicular to the first and second panel supports.
  • a handle extends across the connection region of filter media with the connection region of filter media positioned between the handle and the first end of the frame.
  • the filter media pack is pleated filter media having a plurality of pleat folds forming a plurality of pleat panels.
  • the pleat folds extend generally parallel to the first end of the frame.
  • the first portion of filter media forms a first panel of pleated filter media having a first inner face.
  • the second portion of filter media forms a second panel of pleated filter media having a second inner face.
  • the first and second panel supports are angled relative to one another such that the first and second inner faces are non-parallel to one another and form a cavity therebetween.
  • a filter media support frame for supporting first and second panels of filter media in a spaced apart relation.
  • the filter media support frame includes a first panel support, a second panel support and a connection portion.
  • the first panel support has a first inner side and a first outer side.
  • the second panel support has a second inner side and a second outer side.
  • the second inner side faces the first panel support.
  • the second outer side faces away from the first panel support.
  • the first connection portion connects the first panel support to the second panel support.
  • the first connection portion hingedly connects to the first panel support by a first hinge portion and hingedly connects to the second panel support by a second hinge portion.
  • first and second hinge portions are living hinges and the first panel support, second panel support and the first connection portion are formed as a single continuous piece of material.
  • the first panel support has a first end proximate the first connection portion and a second end spaced apart from the first end.
  • the first panel support has a first engagement region positioned between the first end and second end. The first engagement region is spaced away from the first connection portion.
  • the second panel support has a first end proximate the first connection portion and a second end spaced apart from the first end.
  • the second panel support has a second engagement region positioned between the first end and second end. The second engagement region is spaced away from the first connection portion. The second engagement region engaging the first engagement region. This engagement secures the two panel supports relative to one another.
  • engagement between the first and second engagement regions inhibits movement of the first and second panel supports relative to the connection portion via the first and second hinge portions.
  • the living hinges are provided, at least in part, by reduced thickness regions.
  • the first and second engagement regions snap engage one another, are adhesively bonded to one another, are frictionally engaged with one another, are engaged with an interference fit or are ultrasonically welded to one another.
  • the first hinge portion has a first hinge region connecting the first connection portion to the first panel support.
  • the first hinge region is proximate a first end of the first connection portion.
  • the first hinge portion has a second hinge region connecting the first connection portion to the first panel support.
  • a first slot is formed between the first and second hinge regions of the first hinge portion and between the first connection portion and the first panel support.
  • the second hinge portion has a first hinge region connecting the first connection portion to the second panel support.
  • the first hinge region is proximate the first end of the first connection portion.
  • SUBSTITUTE SHEET (RULE 26) has a second hinge region connecting the first connection portion to the second panel support.
  • the second slot is formed between the first and second hinge regions of the second hinge portion and between the first connection portion and the second panel support.
  • annular base frame has opposed first and second sidewalls and opposed third and fourth sidewalls extending between the opposed first and second sidewalls.
  • the first, second, third and fourth sidewalls surround an opening through the base frame.
  • the first, second, third and fourth sidewalls define a continuous groove.
  • the filter element includes a first end cap that is cup shaped having a panel portion and an annular wall extending outward from the panel portion defining a first well.
  • the first well of the first end cap receives a first end of the first panel support, a first end of the second panel support, and a first end of the first connection portion.
  • a second end cap is provided that is cup shaped having a panel portion and an annular wall extending outward from the panel portion defining a second well.
  • the second well of the second end cap receives a second end of the first panel support, a second end of the second panel support, and a second end of the first connection portion;
  • a continuous sealant material is located within the continuous groove and extends around the opening.
  • the sealant material seals the annular wall of the first end cap to the first sidewall of the base frame.
  • the sealant material seals the annular sidewall of the second end cap to the second sidewall of the base frame.
  • the first end cap includes a first attachment flange that extends into a portion of the continuous groove provided by the first sidewall of the base frame.
  • the sealant material engages the first attachment flange.
  • the second end cap includes a second attachment flange that extends into a portion of the continuous groove provided by the second sidewall of the base frame. The sealant material engages the second attachment flange.
  • the first attachment flange includes at least one aperture.
  • the sealant material extends through the at least one aperture of the first attachment flange.
  • the second atachment flange includes at least one aperture.
  • the sealant material extends through the at least one aperture of the second atachment flange.
  • a first snap connection arrangement is between the first endcap and the base frame.
  • a second snap connection arrangement is between the second endcap and the base frame.
  • a handle having a first end is received in the first end cap and a second end is received in the second end cap.
  • the handle is adjacent the first connection portion.
  • the handle has a gripping portion.
  • a first alignment projection extends between the first end and the gripping portion.
  • a second alignment projection extends between the second end and the gripping portion.
  • the first end cap includes a first alignment groove that receives the first alignment projection when the first end of the handle is received in the first end cap.
  • the second end cap includes a second alignment groove that receives the second alignment projection when the second end of the handle is received in the second end cap.
  • the first engagement region defines a channel and the second engagement region is received within the channel.
  • a filter element including a filter media support frame of as outlined above and first and second filter media portions is provided.
  • the first filter media portion is supported against the first panel support.
  • the second filter media portion is supported against the second panel support.
  • the first and second panel supports are positioned between the first and second filter media portions.
  • a connection region of filter media connects the first and second portions of filter media.
  • the first and second filter media portions and connection region of filter media are formed from a continuous piece of filter media.
  • the connection region of filter media extends across the first connection portion of the filter media support frame.
  • the continuous piece of filter media is a sheet of filter media that is folded to form a plurality of pleats.
  • a first end cap structure is secured to a first end of the first filter media portion, a first end of the second filter media portion, a first end of the filter media support frame and a first end of the connection region of the filter media.
  • a second end cap structure is secured to a second end of the first filter media portion, a second end of the second filter media portion, a second end of the filter media support frame and a second end of the connection region of the filter media.
  • first and second filter media portions, filter media support frame and connection region of filter media are positioned between the first and second end cap structures.
  • a base frame is adhesively secured to the first and second filter media portions and the first and second end cap structures by a continuous piece of adhesive.
  • the continuous piece of adhesive also provides a seal for sealing with a filter housing.
  • the continuous piece of adhesive is formed by a foamed urethane.
  • a filter element that includes a filter media support frame as outlined above and first and second filter media portions.
  • the first filter media portion is supported against the first panel support.
  • the first filter media portion has a first end received in the first end cap; a second end received in the second end cap; a third end adjacent the first connection portion; and a fourth end sealed to the third sidewall of the base frame by the sealant material.
  • the second filter media portion is supported against the second panel support.
  • the first and second panel supports are positioned between the first and second filter media portions.
  • SUBSTITUTE SHEET (RULE 26) media portion has a first end received in the first end cap; a second end received in the second end cap; a third end adjacent the first connection portion; and a fourth end sealed to the fourth sidewall of the base frame by the sealant material.
  • a method of making the filter element as outlined above includes forming the filter media support frame; folding the first panel support relative to the first connection portion about the first hinge portion; folding the second panel support relative to the first connection portion about the second hinge portion; and locating the filter media support frame between the first and second filter media portions.
  • the first and second portions of filter media are formed from a continuous piece of filter media and are connected to one another by a connection region of filter media.
  • the connection region of filter media extends across the first connection portion of the filter media support frame.
  • the method includes attaching a first end cap structure to a first end of the first filter media portion, a first end of the second filter media portion, a first end of the filter media support frame and a first end of the connection region of the filter media.
  • the method also attaching a second end cap structure to a second end of the first filter media portion, a second end of the second filter media portion, a second end of the filter media support frame and a second end of the connection region of the filter media, such that the first and second filter media portions, filter media support frame and connection region of filter media being positioned between the first and second end cap structures.
  • the method includes comprising using an adhesive to adhesively seal the first and second end caps and first and second portions of filter media to a base frame that defines a base frame opening that is in fluid communication with a cavity formed between the first and second portions of filter media.
  • the adhesive is a foamed urethane.
  • the adhesive forms a filter housing seal that surrounds the base frame opening.
  • FIG. 1 is a perspective illustration of a first embodiment of a filter element
  • FIG. 2 is a partial perspective illustration of the filter element of FIG. 1;
  • FIG. 3 is an exploded illustration of the filter element of FIG. 1;
  • FIG. 4 partial perspective illustration of the filter element of FIG. 1;
  • FIG. 5 is an enlarged partial illustration of the filter element of FIG. 1;
  • FIG. 6 is an enlarged partial illustration of the filter element of FIG. 1 ;
  • FIG. 7 is partial cross-sectional illustration of the filter element of FIG. 1;
  • FIG. 8 is an enlarged partial cross-sectional illustration of the filter element of
  • FIG. 1 A first figure.
  • FIG. 9 is a partial perspective illustration of another embodiment of a filter element
  • FIG. 10 is a partial perspective illustration of the filter element of FIG. 9;
  • FIG. 11 is a perspective illustration of another embodiment of a filter element
  • FIG. 12 illustrates the base frame of the filter element of FIG. 1 ;
  • FIG. 13 illustrates the support frame of the filter element of FIG. 1;
  • FIG. 14 is a partial perspective illustration of an alternative embodiment of a filter element
  • FIG. 15 is a partial perspective illustration of an alternative embodiment of a filter element
  • FIG. 16 is a perspective illustration of a filter assembly according to an embodiment
  • FIG. 17 is a cross-section of the filter assembly of FIG. 16;
  • FIG. 18 is a perspective illustration of the filter element of the filter assembly of
  • FIG. 16 is a diagrammatic representation of FIG. 16
  • FIG. 19 is an exploded illustration of the filter element of FIG. 18;
  • FIG. 20 is a cross-section of the filter assembly of FIG. 16;
  • FIG. 21 is a perspective illustration of a further filter assembly according to an embodiment
  • FIG. 22 is a cross-section of the filter assembly of FIG. 21;
  • FIG. 23 is a cross-section of the filter assembly of FIG. 20 with the housing lid removed;
  • FIG. 24 is a perspective illustration of the filter element of the filter assembly of FIG. 21;
  • FIG. 25 is an exploded illustration of the fdter element of FIG. 24;
  • FIG. 26 is a perspective illustration of another embodiment of a fdter element
  • FIG. 27 is a partial exploded illustration of the fdter element of FIG. 26;
  • FIG. 28 is a cross-sectional, partial exploded illustration of the fdter element of
  • FIG. 26
  • FIG. 29 is a perspective illustration of another embodiment of a fdter element
  • FIG. 30 is a perspective illustration of the fdter element of FIG. 29 with one end cap structure removed;
  • FIG. 31 is an exploded illustration of the fdter element of FIG. 29;
  • FIG. 32 is a partial illustration of the frame members of the fdter element of FIG. 29;
  • FIG. 33 is a perspective illustration of a support frame of the fdter element of FIG. 29;
  • FIG. 34 is a partial cross-sectional illustration of the fdter element of FIG. 29;
  • FIG. a cross-section and exploded illustration of the filter element of FIG. 29;
  • FIG. 36 is a perspective illustration of an end cap of the fdter element of FIG.
  • FIG. 37 is a cross-sectional illustration of the fdter element of Fig. 29 with the fdter media thereof removed;
  • FIG. 38 is a further cross-sectional illustration and exploded illustration of the fdter element of FIG. 29 with the fdter media thereof removed;
  • FIG. 39 is a perspective illustration of the base frame and some adhesive of the fdter element of FIG. 29;
  • FIG. 40 is a further cross-sectional illustration of the fdter element of FIG. 29;
  • FIG. 41 is a perspective illustration of another embodiment of a fdter element
  • FIG. 42 is an exploded illustration of the fdter element of FIG. 41;
  • FIG. 43 is a partial, cross-sectional illustration of the fdter element of FIG. 41 with the fdter media thereof removed;
  • FIG. 44 is a perspective dlustration of a support frame of the fdter element of FIG. 41.
  • FIG. 1 is a perspective illustration of an embodiment of a fdter element 100 for filtering air.
  • the fdter element 100 will fdter fluid such as air as it is passed therethrough to remove particulates and impurities carried by the fluid being filtered.
  • the fdter element 100 includes a pair of fdter media panels 102, 104 through which the fluid passes that performs the filtering.
  • the filter media panels 102, 104 may be formed from various different types of filter media and in one embodiment the filter media panels 102, 104 are provided by pleated filter media.
  • the pleated filter media is formed by a plurality of adjacent pleat panels connected to one another at a plurality of alternating folds in an accordion fashion.
  • the filter media panels 102, 104 are mounted to a multi-component holding assembly and oriented such that the filter media panels extend at an angle a relative to one another. Due at least to the angle a between the filter media panels 102, 104, the filter media panels 102, 104 form a cavity 106 therebetween.
  • the filter media panels 102, 104 each have a generally rectangular periphery including a first side 112, 114, a second side 116, 118, a third side 120, 122 and a fourth side 124, 126.
  • the filter media panels 102, 104 also include inner faces 128, 130 that face one another when assembled and outer faces 132, 134 that face away from one another when assembled. The faces are bounded by the first 112, 114, second 116, 118, third 120, 122 and fourth 124, 126 sides.
  • the inner and outer faces 128, 130, 132, 134 may be considered flow faces as the primary fluid flow through the filter media panels 102, 104 is through these faces 128, 130, 132, 134.
  • the multi-component holding assembly 140 is configured to mount the filter media panels 102, 104 in the desired orientation.
  • the multi-component holding assembly 140 of the illustrated embodiment generally includes a support frame 142, a base frame 144, first and second end cap structures 146, 148 and a second side support structure 178.
  • the support frame 142 generally maintains the first and second filter media panels in the desired spaced orientation such that cavity 106 (FIG. 2) is formed.
  • the spaced orientation is angled at angle a as indicated previously.
  • the interior faces 128, 130 are maintained in a non-parallel, nonperpendicular orientation with the first sides 112, 114 of the first and second filter media panels 102, 104 spaced apart from one another a greater distance than the second sides 116, 118. This orientation gives cavity 106 a wedge shape.
  • the support frame 142 generally defines first, second, third and fourth sides 152, 154, 156, 158.
  • the first and second sides 152, 154 are generally offset from one another and extend between the third and fourth sides 156, 158.
  • FIG. 4 which has filter media panel 102 and end cap structure 146 removed for clarity, in the assembled state, the first side 152 of the support frame 142 is adjacent the first sides 112, 114 of the filter media panels 102, 104, the second
  • SUBSTITUTE SHEET (RULE 26) side 154 of the support frame 142 is adjacent the second sides 116, 118 of the filter media panels 102, 104, the third side 156 of the support frame 142 is adjacent the third sides 120, 122 of the filter media panels 102, 104 and the fourth side 158 of the support frame 142 is adjacent the fourth sides 124, 126 of the filter media panels 102, 104.
  • the first side 152 of the support frame 142 defines a first side opening 160 through which fluid flows during the filtering process to exit cavity 160 between the filter media panels 102, 104.
  • the first, second, third and fourth sides 152, 154, 156, 158 of the support frame 142 also bound first and second flow openings 162, 164 that are adjacent to filter media panels 102, 104, respectively, when assembled, through which fluid flows prior to or after passing through corresponding filter media panels 102, 104 depending on if the filter element 100 is configured for inside-out or outside-in fluid flow.
  • the support frame 142 in the illustrated embodiment, includes an overlap portion 166 that has opposite first and second flange portions 168, 170 that extend laterally outward in opposite directions.
  • the first and second flange portions 168, 170 extend laterally outward such that the overlap portion 166 overlaps at least a portion of each of the second sides 116, 118 ofthe first and second filter media panels 102, 104.
  • the bottom surfaces of the flange portions 168, 170 adjacent the filter media panels 102, 104 may be angled relative to a central bisecting plane 172 of the support frame 142 at an angle equivalent to angle a/2 plus ninety degrees.
  • the support frame 142 is operably connected to the base frame 144.
  • the support frame 142 in the illustrated embodiment includes snap structures 174 that snap engage corresponding snap structures 176 of the base frame 144.
  • snap structures 174 are provided by apertures formed in a portion of the support frame 142 proximate the intersection of the first side 152 with the third and fourth sides 156, 158.
  • Snap structures 176 are outward extending projections sized and positioned to extend into the apertures provided by snap structures 174.
  • the projections provided by the snap structures 176 may have tapers or ramps to facilitate connecting the support frame 142 to the base frame 144. Engagement of the snap structures 174 with snap structures 176 is illustrated in FIG. 5.
  • the snap structures could be reversed and other cooperating snap structures are contemplated.
  • the snap engagement facilitates initial assembly of the multi-component holding assembly 140 prior to mounting of the fdter media panels 102, 104.
  • a second side support structure 178 is operably connected to the second side 154 of the support frame 142.
  • the second side support structure 178 includes connection elements 180 that extend into recesses 182 (also referred to as receptacles) formed in the support frame 142.
  • the fit between the connection elements 180 and the recesses provides a snap engagement.
  • the second side support structure 178 extends between opposed first and second ends 184, 186 with a connection element 180 at each end.
  • the cooperating catch arrangement of the connection elements 180 and recesses 182 may include catches or undercuts to form an improved connection between the support frame 142 and the second side support structure 178 such as illustrated in FIG. 7.
  • the second side support structure 178 overlaps the flange portions 168, 170 of the support frame 142.
  • the filter media panels 102, 104 are formed from pleated media with the folds 185 (see FIG. 1) of the pleated media extending perpendicularly between the third and fourth sides 120, 122, 124, 126 of the filter media panels, at least one panel 187 of each filter media panel 102, 104 is pinched between a top surface of the corresponding flange portion 102, 104 and a bottom surface of the second side support structure 178.
  • a seal material 188 such as a glue bead or adhesive is applied to seal the portion of the pleated media between the second side support structure 178 and the second side 154, e.g. flange portions 168, 170, to seal the filter media panels 102, 104 along the second sides 116, 118 thereof.
  • the seal material 188 will also help secure the second side support structure to the second side 154 of the support frame 142.
  • the support frame 142 defines a second side stop 179 that extends between the third and fourth sides 156, 158 against which the inner faces 128, 130 of the first and second filter media panels 102, 104 proximate the second sides 116, 118 thereof rest when in an assembled state.
  • the second side support structure 178 (also referred to as a handle member) includes a handle 189 including a gripping portion configured to be grasped by a user to
  • SUBSTITUTE SHEET remove the filter element 100 at maintenance intervals.
  • the handle 189 is located axially between the opposed first and second ends 184, 186 of the second side support structure 178.
  • the third and fourth sides 156, 158 are formed from frame segments including a pair of converging elongated segments 190, 192 and a cross-brace segment 194 that extends between the elongated segments 190, 192.
  • the pair of converging elongated segments 190, 192 for the third and fourth sides 156, 158 converge proximate the second side 154.
  • the snap structures 174 are formed as part of the cross brace segments 194.
  • the first side 152 of the support frame is defined by the cross-brace segments 194 and a pair of first side elongated segments 196, 198 that extend generally parallel to one another between the third and fourth sides 156, 158 in a spaced apart relation.
  • the support frame opening is defined by the cross-brace segments 194 and the pair of first side elongated segments 196, 198.
  • the inner faces 128, 130 of the first and second filter media panels may rest against the elongated segments 190, 192 and 196, 198.
  • the base frame 144 cooperates with the support frame 142 to support the filter media panels 102, 104.
  • the base frame 144 supports a first side 112, 114 of the filter media panels 102, 104.
  • the base frame 144 defines a base frame opening 200 through which dirty fluid enters or clean fluid exits the filter element based on the flow direction of the fluid through the filter element. More than one base frame opening may be provided if multiple sets of filter media panels are mounted to a single base frame 144.
  • the base frame 144 includes a pair of opposed captured portions in the form of first and second outward extending flanges 202, 204.
  • SUBSTITUTE SHEET (RULE 26) outward extending flanges 202, 204 extend away from one another on opposite sides of the base frame opening 200 and form under cuts 206, 208.
  • L ocating surfaces 210, 212, 214, 216 of the outward extending flanges 202, 204 support opposed ends of the first sides 112, 114 of the filter media panels 102, 104.
  • the locating surfaces 210, 212, 214, 216 are tapered relative to central plane 172 at angle of 90 minus angle a/2.
  • the locating surfaces are generally perpendicular to the planes 220, 222 (see FIG. 2) defined by the first, second, third and fourth sides 152, 154, 156 , 158 of the support frame 142 against which the first and second filter media panels 102, 104 rest when assembled.
  • Locating surfaces 210, 214 that support the first filter media panel 102 are generally parallel to flange portion 168 of the support frame 142 as well as the first side 112 of the filter media panel 102 while locating surfaces 212, 216 support the first side 114 of filter media panel 104 and are general parallel to flange portion 170 of the support frame 142 as well as the first side 114 of filter media panel 104.
  • the tapered locating surfaces are generally perpendicular to the inner and outer faces 128, 130, 132, 134 of the filter media panels 102, 104.
  • Locating surfaces 210, 212 of the first flange 202 extend at a non-parallel non-perpendicular angle relative to one another as well as bisecting central plane 172.
  • Locating surfaces 214, 216 of the first flange 204 extend at a non-parallel non-perpendicular angle relative to one another as well as bisecting central plane 172.
  • Flanges 202, 204 each define a corresponding elevated segment 224, 226 positioned between corresponding tapered locating surfaces 210, 212 and 214, 216.
  • the elevated segments 224, 226 define snap structures 176 that cooperate with snap structures 174 as described above.
  • the elevated segments 224, 226 are straddled by segments 196, 198 when assembled to assist in locating the support frame 142 relative to the base frame 144.
  • the base frame 144 includes support members 228 that have tapered surfaces 230, 232 similar to tapered locating surfaces 210, 212, 214, 216 and that facilitate support of the first sides 112, 114 of the filter media panels 102, 104 as well as elevated projections 234 (also referred to as tabs) for locating the elongated segments 196, 198.
  • the support members 228 that have tapered surfaces 230, 232 similar to tapered locating surfaces 210, 212, 214, 216 and that facilitate support of the first sides 112, 114 of the filter media panels 102, 104 as well as elevated projections 234 (also referred to as tabs) for locating the elongated segments 196, 198.
  • the support members 228 that have tapered surfaces 230, 232 similar to tapered locating surfaces 210, 212, 214, 216 and that facilitate support of the first sides 112, 114 of the filter media panels 102, 104 as well as elevated projections 234 (also referred to as tabs
  • SUBSTITUTE SHEET (RULE 26) members 228 extend across base frame opening 200 between parallel extending side member portions 236, 238
  • the base frame 144 carnes a sealing gasket 240 used to seal the filter element 100 to a filter housing (not shown).
  • the sealing gasket 240 in the illustrated embodiment is a continuous piece of D-style rope stock.
  • the sealing gasket 240 is carried in an annular groove 242 that circumscribes the base frame 144.
  • the sealing gasket 240 defines a radial seal.
  • other embodiments could define an axial seal.
  • the first and second end cap structures 146, 148 assist in operably sealing the filter media panels 102, 104 to the support frame 142 and/or base frame 144 to prevent fluid from bypassing the filter media panels 102, 104.
  • the first end cap structure 146 operably seals the third sides 120, 122 of the filter media panels 102, 104 and the second end cap structure 148 operably seals the fourth sides 124, 126.
  • the first outward extending flange 202 of the base frame 144 is captured in the first end cap structure 146 while the second outward extending flange 204 of the base frame 144 is captured in the second end cap structure 148.
  • the first and second outward extending flanges 202, 204 captured by the first and second end cap structures 146, 148, but the third side 156 of the support frame 142 is captures by the first end cap structure 146 while the fourth side 158 of the support frame 142 is captured by the second end cap structure 148.
  • the first and second end cap structures 146, 148 are composite structures with each including a cupped end cap 250, 252 and adhesive within the cupped end cap 250, 252.
  • the cupped end caps 250, 252 form wells for holding the adhesive.
  • the adhesive may be a foamed urethane or known potting material. Other materials include hot melt, plastisol, epoxy, non-foamed urethane, etc.
  • the adhesive of the first end cap structure 146 captures the third sides 120, 122 of the filter media panels 102, 104, the first outward extending flange 202, the third side 156 of the support frame 142 and
  • SUBSTITUTE SHEET (RULE 26) the first end 184 of the second side support structure 178.
  • the adhesive of the second end cap structure 148 captures the fourth sides 124, 126 of the filter media panels 102, 104, the second outward extending flange 204, the fourth side 158 of the support frame 142 and the second end 186 of the second side support structure 178.
  • cupped end caps 250, 252 also each include outward extending mounting flanges 254, 256 for assisting in mounting the filter element 100 in a filter housing (not shown).
  • sealant beads may be applied between the first sides 112, 114 of the filter media panels 102, 104 and the base frame 144 to sealingly secure the filter media panels 102, 104 to the base frame 144.
  • adhesive may be applied to the tapered surfaces 230, 232 of the support members 228 as well as to the top surfaces of side members 236, 238. Further yet, adhesive is applied to the second sides 116, 118 of the filter media panels 102, 104 and the second side 154 of the support frame 142 as described above.
  • FIG. 3 an optional support screens 290 are illustrated that will be positioned between the first and second filter media panels 102, 104 and the support frame 142 and the base frame 144 as will be described in more detail with regard to the embodiment of FIG. 9 described below.
  • the support screens 290 are formed from an expanded metal to form the through apertures and include embossed rib structures 292.
  • the rib structures 292 are pressed into the support screens 290 to provide increased support for the filter media panels 102, 104. While illustrated as being horizontal rib structures 292 that extend longitudinally between the third and fourth sides 120, 122, 124, 126 of the filter media panels 102, 104 when assembled, the rib structures 292 could have other orientations and shapes.
  • the rib structures 292 extend inward and away from the corresponding media panels 102, 104 so that the rib structures 292 do not interfere with mounting or locating of the filter media panels 102, 104.
  • This embodiment is also illustrated with optional pleat stabilizers mounted on the inner and outer faces of the filter media panels.
  • the pleat stabilizers may be in the form
  • SUBSTITUTE SHEET (RULE 26) of molded components mounted to the filter media panels or could be hot melt or urethane beads applied to the filter media panels in a direction extending generally transverse to the edges/tips of the pleats when pleated media is used.
  • FIG. 9 illustrates a further embodiment of a filter element 300 according to the teachings of the present invention.
  • This embodiment is substantially similar to the prior embodiment and only the primary differences will be described. Where not contradicted by context, the features of this embodiment may be used with the structure of the prior embodiment.
  • One of the filter media panels and end cap structures has been removed for ease of understanding.
  • This filter element 300 is generally designed for an outside-in flow. As such, fluid will flow through the outer faces 334 of the filter media panels 304 (only one is shown) first and then exit the filter element 300 through base from opening 400 formed in the bottom of the base frame 344.
  • first and second support screens 305 are provided. Only one of the support screens 305 is readily visible. This support screen 305 would support the filter media panel that has been removed. However, a similar support screen 305 supports filter media panel 304 that is illustrated.
  • the support screens 305 are positioned between the support frame 342 and base frame 344 and the filter media panels 304.
  • the support frame 342 and base frame 344 support the support screens 305.
  • the support screens 305 are generally L-shaped having a first side portion 307 and an inner face portion 309.
  • the first side portion 307 is positioned adjacent the first sides 314 of the filter media panels 304 as well as the outward extending flanges 402, 404 and support members 428.
  • the inner face portion 309 is positioned adjacent the inner faces 130 of the filter media panels 304.
  • the first side portion 307 and inner face portion 309 of the support screens are formed from a single piece of material bent to correspond to the L-shape formed by the connected support frame 342 and base frame 344.
  • the first side portion 307 and inner face portion 309 may be formed from separate pieces of screen.
  • the support screens are formed from embossed expanded screen material.
  • this embodiment also utilizes pleat stabilizers 472 when the filter media panels are formed from pleated filter media.
  • the pleat stabilizers 472 provide support to the filter media due to a pressure drop across the filter media panels.
  • the pleat stabilizers 472 may also maintain a desired spacing of the adjacent pleats.
  • end cap structures of the prior embodiments are described as multicomponent end caps, other embodiments may utilize one-piece end caps.
  • the end cap could be formed from a single piece of rigid urethane that is formed around the various components that are to be captured by the end cap structures discussed previously.
  • FIG. 11 illustrates a further embodiment of a filter element 500.
  • This embodiment is similar to and can include substantially all of the features of the prior embodiments. However, this embodiment utilizes two banks of filter media panels 502A, 504 A and 502B, 504B mounted to a single base frame 544.
  • FIG. 14 is a partial perspective illustration of a further embodiment of a filter element 100'.
  • the filter element 100' has an alternative handle 189' having first and second curved portions 191, 193.
  • the filter element 100' has pleat stabilizers 472' extending the entire length of the filter media panels 102,104.
  • the filter element 100' has intermediate cross-braces 195 that extend between the converging elongated segments 190, 192 that provide additional structural support to the support frame 142.
  • the handle 189', pleat stabilizers 472' and cross-braces 195 can be used individually or in combination with any of the embodiments disclosed herein.
  • FIG. 15 is a partial perspective illustration of a further embodiment of a filter element 100".
  • the filter element 100" has an alternative handle 189" having first and second handle base flanges 197, 199.
  • the filter element 100" has pleat stabilizers 472' extending the entire length of the filter media panels 102,104.
  • the filter element 100" has intermediate cross-braces 195 that extend between the converging elongated segments 190, 192 that provide additional structural support to the support frame 142.
  • the handle 189", the first and second handle base flanges 197, 199, pleat stabilizers 472' and cross-braces 195 can be used individually or in combination with any of the embodiments disclosed herein.
  • FIGS. 16 and 17 illustrate a filter assembly 701 in accordance with an embodiment of the invention.
  • the filter assembly 701 includes a filter housing 703 that houses a filter element 700 (see FIG. 17) for filtering a flow of fluid (typically air) that flows from an unfiltered inlet 709 to a clean air outlet 711 while passing through the filter element 700.
  • a filter element 700 for filtering a flow of fluid (typically air) that flows from an unfiltered inlet 709 to a clean air outlet 711 while passing through the filter element 700.
  • the filter housing 703 generally includes a housing base 705 and a housing lid 707 that define a central cavity 708 interposed between the inlet 709 and the outlet 711.
  • the housing base 705 may be made from multiple components connected together.
  • the housing lid 707 is removable to provide access to the central cavity 708 to provide access to the filter element 700 for replacement of the filter element 700 when it becomes spent.
  • a pre-cleaner arrangement 713 is positioned proximate the inlet 709 and is upstream of the filter element 700 to help filter larger impurities prior to the air reaching the filter element 700.
  • the filter element can include most features and structures of the prior filter elements described in FIGS. 1-15. More particularly, the filter element 700 includes a pair of filter media panels 702, 704 (also referred to as media packs) and a multi-component holding assembly configured to mount the filter media panels 702, 704 in the desired orientation.
  • the multi-component holding assembly is similar to those described previously and generally includes a support frame 742 (see FIG. 19), a base frame 744, first and second
  • SUBSTITUTE SHEET (RULE 26) end cap structures 746, 748 and a second side support structure 778.
  • the filter media panels 702, 704 the multi-component holding assembly is configured such the filter media panels 702, 704 are canted relative to one another such that the filter media packs converge proximate second sides 716, 718 and diverge, i.e. are spaced apart, proximate sides 712, 714.
  • a clean air cavity is formed between inner faces of the filter media panels 702, 704.
  • the second side support structure 778 is connected to the filter media panels 702, 704 as described above with reference to FIGS. 7 and 8.
  • the second side support structure 778 may also be referred to as a handle frame as it supports handle 789.
  • the second side support structure 778 bridges any gap formed between the adjacent second sides 716, 718 of the filter media panels 702, 704.
  • the base frame 744 carnes a sealing gasket 840 used to seal the filter element 700 to a filter housing 703 (see FIG. 17).
  • the sealing gasket 840 in the illustrated embodiment is a continuous piece of D-style rope stock.
  • the sealing gasket 840 defines a radially directed seal with a radially inner surface of the housing base 705.
  • axial seals could be provided.
  • the seal provided by sealing gasket 840 prevents dirty air from bypassing the filter element 700 as it flows from inlet 709 to outlet 711.
  • the sealing gasket 840 alone or in combination with other components such as base frame 744 may be considered a housing seal system.
  • the housing lid 707 includes an inward extending tubular projection 715.
  • the tubular projection 715 can be used to make sure that the filter element 700 is axially inserted far enough into the filter housing 703.
  • the second side support structure 778 of this embodiment is configured to provide improved protection of the filter media of the filter media panels 702, 704, particularly during installation of the filter element 700 into the filter housing.
  • the second side support structure 778 includes a central bridge element that spans the region between the second sides 716, 718 of the filter media panels 702 704.
  • a plurality of shield elements in the form of wing panels 777, 781 and 783 project laterally from the bridge element 775
  • SUBSTITUTE SHEET (RULE 26) out over the second sides 716, 718 for protecting the filter media defining second sides 716, 718 of the filter media panels 702, 704.
  • the shield elements extend over the end region, e.g. second sides 716, 178 of the filter media packs.
  • the shield elements e.g. wing panels 777, 781, 783 provide a location where a user directly or indirectly (e.g. via projection 715) can apply axial pressure to the filter element 700 to press the filter element 700 into the filter housing 703 through the opening of the filter housing 703 covered by housing lid 707.
  • wing panels 777, 781, 783 are beneficial when filter media panels 702, 704 are formed from pleated filter media with the pleat panels extending generally parallel to second sides 716, 718, i.e. oriented such as illustrated in FIG. 8.
  • the pleat panels, and corresponding folds (also illustrated in FIG. 8), of the filter media panels 702, 704 extend laterally between the third and fourth sides 720, 722 and 724, 726 and corresponding end cap structures 746, 748..
  • wing panel 783 helps prevent projection 715 from pressing directly on the pleat panel.
  • the wing panels 777, 781, 783 extend on both sides of bridge element 775.
  • other embodiments could have wing panels that are formed on only a single side of the bridge element 775.
  • the second side support structure 778 including the bridge element 775 and wing panels 777, 781 and 783 are formed from a single molded plastic component and then operably secured to the rest of the frame components as further described with regard to prior embodiments.
  • the second sides 716, 718 of filter media panels 702, 704 define a width W1 between opposed outer faces 732, 734.
  • Wing panels 777, 781, 783 have widths W2-W4.
  • Widths W1-W4 are transverse to a length LI of the filter media panels 702, 704 proximate second sides 716, 718, which define an end of the filter element.
  • the widths W2-W4 are at least 40% the width W1 defined by the filter media panels 702, 704. More preferably, the widths W2-W4 are at least 75% the width W1 and more preferably at least 90% of width Wl.
  • the wing panels 777, 781, 783 could have widths W2-W4 that are equal to or greater than width Wl.
  • width Wl is between 3 and 5 inches and more preferably between 3.5 and 4.5 inches. In some embodiments, widths W2 and W3 are between 2.5 inches and 5 inches and more preferably between 3.5 and 4.5 inches. In some embodiments, width W4 is between 2.5 and 5 inches and more preferably between 3 and 4 inches.
  • the length LI is measured between third sides 720, 722 and fourth sides 724, 726.
  • the wing panel 777, 781, 783 have lengths L2-L4 measured parallel to length LI.
  • lengths L2-L4 are at least 5% of length LI.
  • length L4 is at least 10% of length LI.
  • length LI is between 10 and 20 inches and more preferably between 13 and 17 inches.
  • lengths L2 and L3 are at least 0.5 inches and more preferably at least 0.75 inches and more preferably at least 0.85 inches.
  • Length L4 is preferably at least 2 inches and more preferably at least 2.5 inches and more preferably at least 3 inches.
  • wing panels 777 and 781 have a tapering length when moving towards bridge element 775. More particularly, the portion of the wing panels 777, 781 furthest from the bridge element 775 have a smaller length than the portion of the wing panels 777, 781 proximate the bridge element 775 where the wing panels 777, 781 transition into the bridge element 775.
  • the length proximate the bridge element may be between 0.75 and 1.5 inches and more preferably between 1.15 inches and 1.35 inches.
  • the end cap structures 746, 748 are cup shaped including a panel section and an outward extending annular wall that define a cavity.
  • the outer most edges of the wing panels 777, 781 extend into the cavity formed by the annular wall of end cap structures 746, 748 such that opposed ends of the second side support structure 778 are received in the correspondence end cap structures 746, 748. Due to this configuration, a portion of wing panels 777, 781 are hidden within the end cap structures 746, 748 while another portion is exterior of the end cap structures 746, 748 and exposed.
  • SUBSTITUTE SHEET (RULE 26) As discussed above, this allows for proper sealing of the fdter media panels 702, 704 to prevent undesirable fluid bypass.
  • a greater extent of the lengths L2, L3 of the wing panels 777, 781 extends out of the end cap structures 746, 748 than is received and hidden therein.
  • the annular wall of the end cap that overlaps the wing panels 777, 781 overlap the wing panels 777, 781 by less than 0.5 inches and at least 0.25 inches.
  • the exposed portion of lengths L2, L3 of the wing panels 777, 781 is at least 0.4 inches and more preferably at least 0.5 inches.
  • the shield elements could cover the entire length LI and width W1 of second sides 716, 718 of the filter media panels 702, 704. However, this arrangement would increase flow restriction.
  • a handle 789 is spaced away from the wing panel 783 and is used for removing the filter element 700 from the housing 703 at maintenance intervals. As illustrated in FIG. 17, handle 789 is received within an open free end of tubular projection 715 when installed within housing 703.
  • the filter assembly 701 further includes a safety filter 721 downstream from filter element 700 and upstream from the outlet 711 of the filter housing 703.
  • the safety filter 721 assists in protecting any downstream systems in the event of a failure of the filter element 700.
  • Filter element 700 may also be referred to as a primary filter element.
  • Safety filter 721 includes a frame 723 that carries a seal element 725 for sealing with filter housing 703.
  • the frame 723 is downstream from and supports filter media 727.
  • Filter media 727 may take many forms but is most typically a panel of pleated filter media.
  • the outer perimeter of tubular projection 715 is smaller than wing panel 783. More particularly, the diameter DI of the outer perimeter of tubular projection 715 is smaller than or equal to the width W4 of wing panel 783. This relative relationship prevents the free end of the tubular projection 715 from coming into contact with the outer most panel(s) of the media pack and damaging the integrity of the filter media.
  • the inner periphery of the tubular projection 715 is sized to receive the handle 789.
  • FIGS. 21-25 illustrate a filter assembly 901 according to another embodiment.
  • the filter assembly 901 is similar in many respects to filter assembly 701 except it includes a filter element 900 (see e g. FIGS. 22-25) that is similar to filter element 500. More particularly, the filter element 900 of this embodiment utilizes two banks of filter media panels 902A, 904A and 902B, 904B mounted to a single base frame 944.
  • the filter housing 903 includes a housing base 905 and a housing lid 907.
  • the filter housing 903 include inlet 909 and outlet 911.
  • the filter element 900 includes a pair of banks of filter media panels 902A, 904A and 902B, 904B (also referred to as media packs) and a multi-component holding assembly configured to mount the filter media panels 902A, 904A and 902B, 904B in the desired orientation.
  • the multi-component holding assembly is similar to those described previously and generally includes a pair of support frames 942A, 942B (see FIG. 19), a base frame 944, first and second end cap structures 946 A, 948A and 946B, 948B and a pair of second side support structures 978A, 978B.
  • the multi-component holding assembly is configured such that the filter media panels 902A, 904A and 902B, 904B of each bank are canted relative to one another such that the filter media packs converge proximate second sides and diverge, i.e. are spaced apart, proximate the opposed sides.
  • a clean air cavity is formed between inner faces of the corresponding sets of filter media panels 902A, 904A and 902B, 904B, respectively.
  • the second side support structures 978 A, 978B are connected to the corresponding banks of filter media panels 902A, 904A and 902B, 904B as described above.
  • the second side support structures 978A, 978B may also be referred to as a handle frame as it supports handles 989A, 989B.
  • the second side support structures 978A and 978B bridge any gap formed between the adjacent second sides of the corresponding filter media panels 902A, 904A and 902B, 904B of the corresponding bank of filter media panels. More particularly, each second side support structure 978A, 978B includes a central bridge element 975 A, 975B.
  • Each second side support structure 978 A, 978B also includes A plurality of shield elements in the form of wing panels 977A, 981 A, 983A, 977B, 981B, 983B that project laterally from the bridge elements 975A, 975B.
  • the housing lid 907 includes a pair of tubular projections 915A, 915B that cooperate with the corresponding handles of the second side support structures 978 A, 978B.
  • FIGS. 26-28 illustrate a further feature of some embodiments. While prior embodiments illustrate the use of preformed sealing gaskets (e.g. sealing gasket 840), the sealing gasket of filter element 1100 is a sealing gasket 1240 molded directly to the base frame 1144.
  • the base frame 1144 of this embodiment includes a plurality of openings 1145 that allow material of the sealing gasket 1240 to extend therethrough for securing the sealing gasket 1240 to the base frame 1144.
  • the portions of the sealing gasket 1240 extending through the openings 1145 seal the openings 1145 to prevent fluid bypass.
  • the openings are formed between adjacent leg segments 1147.
  • the leg segments 1147 are connected at distal ends by an annular bottom segment 1149.
  • filter element 1100 The rest of the construction of filter element 1100 can be according to the features described above for the other filter elements.
  • FIG. 29 is a perspective illustration of a filter element 1200 for filtering fluid such as air according to a further embodiment.
  • the filter element 1200 is similar in many respects to the prior embodiments and the differences thereof will be focused on below.
  • the filter element 1200 includes a pair of filter media portions 1202, 1204 that take the form of filter media panel portions, similar to the filter media panels discussed above (e.g. filter media panels 102, 104, 304, 502, 504, etc.).
  • the filter media portions 1202, 1204 are formed from a single continuous piece of filter media.
  • a connection region of filter media 1203 extends between and interconnects filter media portion 1202 with filter media portion 1204.
  • the filter media portions 1202, 1204 are formed from pleated filter media.
  • other filter media e.g. non-pleated block portions of filter media.
  • Filter media portions 1202, 1204 and interconnection region of filter media 1203, in some embodiments, are formed from a single continuous sheet of filter media. This sheet of media can be folded to form the pleated configuration of each filter media portion 1202, 1204 and then folded to provide connection region 1203.
  • the filter media portions 1202, 1204 are mounted to a multi-component holding assembly 1240 and oriented such that the filter media portions 1202, 1204 extend at angle relative to one another similar to angle a described above, for example, with regard to filter element 100.
  • Each of filter media portion 1202 and 1204 could be considered to be a filter media panel portion and in general have the same general rectangular periphery and inner and outer faces 1228, 1232, which, again, may be considered flow faces as the primary fluid flow through the filter media portions 1202, 1204 is through these faces.
  • the multi-component holding assembly 1240 supports the filter media panel portions 1202, 1204 in the desired orientation.
  • the angle orientation mentioned above helps define cavity 1206 between the inner faces 1232 of the filter media panel portions 1202, 1204. Due to the angled orientation, this cavity is generally wedge shaped and the faces 1228, 1232 of the filter media portion 1202 are generally non-parallel and nonperpendicular to the faces 1228, 1232 of the filter media portion 1204. However, the faces 1228, 1232 of filter media portion 1202 are generally parallel to one another and the faces 1228, 1232 of filter media portion 1204 are generally parallel to one another.
  • the multi-component holding assembly 1240 generally includes a support frame 1242, a base frame 1244 and first and second end cap structures 1246, 1248.
  • a support member 1278 may be provided that can include a handle 1289 similar to prior embodiments.
  • the support frame 1242 of this embodiment includes a first panel support 1250, a second panel support 1252 and a connection portion
  • connection portion 1254 that extends between and connects the first and second panel supports 1250, 1252.
  • the connection portion 1254 is hingedly connected to first panel support 1250 by hinge 1255 and the connection portion 1254 is hingedly connected to second panel support 1252 by hinge 1256.
  • the hinges 1255, 1256 in the illustrated embodiment are formed by living hinges.
  • the first and second panel supports 1250, 1252 and connection portion 1254 can be formed by a single body formed from a single continuous piece of material, e.g. a single molded body.
  • the living hinges may be provided by reduced strength hinge regions 1257.
  • the reduced strength hinge regions 1257 can be provided by reduced thickness.
  • the reduced thickness could be intermittent along the corresponding hinges 1255, 1256 in some embodiments.
  • slits 1258 may extend along the hinges 1255, 1256 between adjacent hinge regions 1257 that connect the connection portion 1254 to first and second panel supports 1250, 1252.
  • the panel supports 1250, 1252 include a pair of elongated segments 1260, 1262 that are generally spaced apart from another with a plurality of interconnection elongated segments 1264, 1265, 1266 extending therebetween.
  • the outer surfaces of these elongated segments 1260, 1262, 1264, 1265, 1266 provide support for the inner faces 1232 of the filter media portions 1202, 1204 (see FIG. 34).
  • the first panel support 1250 includes a first engagement region 1270 that cooperates with a second engagement region 1271 of the second panel support 1252.
  • the first and second engagement regions 1270, 1271 abut one another in a face-to-face orientation.
  • the engagement regions 1270, 1271 can be affixed to one another, such as by way of ultrasonic bonding, adhesive boding, snap engagement, and friction and/or interference fits.
  • one engagement region defines a slit
  • SUBSTITUTE SHEET (RULE 26) in which a portion of the other engagement region is received to help maintain engagement and proper orientation during assembly.
  • the engagement regions are only provided by the center elongated segments 1265 of each of the panel supports 1250, 1252.
  • the engagement regions could be provided by other ones of the elongated segments 1260, 1262, 1264, 1266 in the alternative or inclusive of center elongated segments 1265.
  • Elongated segment 1262 may include a shelf configuration provided by an outwardly extending flange 1272. A side of the filter media panel portions 1202, 1204 can rest on this flange 1272 to properly locate the filter media panel portions 1202, 1204.
  • FIG. 35 illustrates the filter element 1200 in cross-section and in partially exploded form but further illustrates the flange portion 1272 as well as the engagement regions 1270, 1271.
  • FIGS. 34 and 35 illustrate filter media connection region 1203 sandwiched between support member 1278 and connection portion 1254. This avoids the need to provide sealant between the media and the support frame 1240 to prevent leak paths as in prior embodiments discussed above where only a portion of a pleat of each individual filter media panel is sandwiched between the support member and the support frame. Thus, providing the filter media connection region 1203 eliminates one potential leak path.
  • the pleat folds of the filter media will typically be oriented similar to that as illustrated in FIG. 1 and FIG. 8 illustrated for prior filter elements, e.g. the pleat fold will extend between the end cap structures 1246, 1248.
  • the base frame 1244 is an annular member that defines a base frame opening 1300 through which fluid flows.
  • the base frame opening 1300 is downstream from the filter media provided by media portions 1202, 1204 such that dirty fluid will pass through the filter media portions 1202, 1204 and then clean fluid will exit cavity 1206 through base frame opening 1300.
  • the dirty fluid will flow through base frame opening 1300 and then pass through the filter media portions 1202,
  • the base frame 1244 is generally annular and includes a plurality of sidewalls that bound the base frame opening 1300.
  • the base frame 1244 is generally rectangular shaped and includes and generally includes first, second, third and fourth sidewalls with the first and second sidewalls being parallel and spaced apart with the third and fourth sidewalls being parallel, spaced apart and extending between the first and second sidewalls.
  • a seal gasket 1241 is mounted to and extends around the base frame 1244.
  • the seal gasket 1244 is used to seal the filter element 1200 and particularly the base frame 1244 to a filter housing, such as illustrated with regard to FIG. 17 for prior embodiments.
  • the seal gasket 1241 is mounted in a groove formed in the outer periphery of the base frame 1244 and provides a radially outward directed seal surface.
  • axial seals are contemplated.
  • the seal gasket 1241 may be a preformed section of sealing gasket that is wrapped around the base frame 1244 (with or without an adhesive between the base frame 1244 and the sealing gasket 1241) or could be a mold in place seal gasket.
  • the first and second end cap structures 1246, 1248 are attached to and seal opposed ends of the filter media portions 1202, 1204.
  • the end cap structures 1246, 1248 assist in sealing the filter media portions 1202, 1204 to the base frame 1244 to prevent fluid from bypassing the filter media portions 1202, 1204 in use.
  • the first and second end cap structures 1246, 1248 could take numerous forms.
  • the first and second end cap structures 1246, 1248 could be composite structures, mold in place structures or single body structures in which the filter media and various other components are embedded therein (e.g. after heating thereol).
  • the end cap structures 1246, 1248 are composite structures with each including a cupped end cap 1268 and an adhesive within the cupped end cap 1268.
  • FIG. 36 illustrates the cupped end cap 1268.
  • the cupped end cap 1268 forms well 1269 for holding the adhesive.
  • the adhesive may be a foamed urethane or
  • SUBSTITUTE SHEET (RULE 26) known potting material.
  • Other materials include hot melt, plastisol, epoxy, non-foamed urethane, etc.
  • the well 1269 is generally V-shaped with one portion 1280 receiving an end of the first filter media portion 1202, another portion 1282 receiving an end of the second filter media portion 1204.
  • a connection region 1284 of the well 1269 connects the first and second portions 1280, 1282 and accommodates an end of the support member 1278, an end of the connection portion 1254 of the support frame 1242, and the connection region of the filter media 1203.
  • ends of the first and second panel supports 1250, 1252 are also received in first and second portions 1280, 1282, respectively of the well 1269.
  • the cup shaped end cap 1268 generally has a flat panel from which a sidewall projects to form the V-shaped well 1269 and define the various portions thereof. Again, the well 1269 would be filled with an adhesive material to seal the ends of the filter media to the end cap structure and prevent fluid bypass. The adhesive also secures the end cap structures 1246, 1248 to the support frame 1242.
  • the ends of the support frame 1242 are stepped in various locations to facilitate locating the support frame 1242 within the wells 1269 of the end cap structures 1246, 1248.
  • the outer elongated segments 1266, 1264 are stepped such as at region 1286 to abut the inner edge of wall portions 1288 of the cupped end cap 1286.
  • the support frame 1242 is stepped at region 1290 such that the ends of flanges 1272 abut wall portion 1292 of the cupped end cap 1286.
  • the flange 1272 is preferably flush with wall portion 1292 when assembled so as to provide for a good seating and support of the filter media portions 1202, 1204.
  • the base frame 1244 also includes locating abutments 1294 that abut wall portion 1292 of the cupped end cap 1286 to assist in proper positioning of the end caps 1286 during assembly.
  • the base frame 1244 defines an annular groove 1296 (identified with a dashed arrow in FIG. 39 as the groove 1296 is filled with an adhesive 1298) for holding adhesive 1298.
  • the groove 1296 is continuous and extends within all of the four sidewalls of the base frame 1244.
  • adhesive 1298 also forms a continuous bead of adhesive that extends around the base frame opening 1300.
  • the adhesive 1298 seals the ends cap structures 1246, 1248 to the base frame 1244 and particularly cooperates with an outer surface of wall portion 1292 that faces the base frame 1244.
  • the adhesive 1298 seals the filter media portions 1202, 1204 to the base frame 1244. As illustrated, the adhesive 1298 engages ends 1302 of the filter media portions 1202, 1204, which rest on the upper surface of the sidewalls of the base frame 1244.
  • the filter media is sealed to the end caps 1246, 1248 and base frame 1244 to prevent dirty fluid bypass.
  • end caps 1286 also include securement tabs 1306 for increasing the connection between the end caps 1286 and the base frame 1244.
  • the securement tabs 1306 extend into the groove 1296 and into adhesive 1298 once assembled.
  • the securement tabs 1306 include apertures 1308 through which the adhesive 1298 extends to further increase strength of the connection therebetween.
  • snap structure 1276 engages snap structure 1274.
  • Snap structure 1276 is a tab that has an outward extending head that engages snap structure 1274 which is in the form of a shelf formed into the base frame 1244 (see e.g. FIGS. 37, 38 and 40).
  • FIG. 41 illustrates a further filter element 1400.
  • the filter element 1400 is similar to the prior filter elements in many respects and the discussion of filter element 1400 will be focused on the differences thereof.
  • Filter element 1400 includes filter media portions 1402, 1404 that are connected to one another by a connection region 1403 (se FIG. 42) such that filter media portions 1402, 1404 are formed from a single continuous piece of filter media similar to filter media portions 1202, 1204.
  • Endcap structures 1446, 1448 include an alignment member 1447 to assist in assembly as well as to provide additional rigidity to the resulting filter element 1400 post assembly.
  • Each alignment member 1447 includes a slot 1449 that receives projection 1451 of the support member 1478. Slot 1449 is formed between legs 1453 that are formed with end caps 1468. In the illustrated embodiment, the legs 1453 are formed as a projection extending from the sidewall portion that defines the well 1469 of the end cap structures 1446, 1448.
  • end caps 1468 include vertically extending projections 1455 that extend from legs 1453. These vertically extending projections 1455 are laterally spaced and straddle the projection 1451. These projections 1455 are used to locate the filter element 1400 on an inner periphery of a corresponding filter housing in which the filter element 1400 is to be installed.
  • the snap structures 1474, 1476 have been reversed from the prior example.
  • the base frame 1444 snap structure 1476 that is in the form of an axially extending projection that includes a laterally extending head portion.
  • the end cap 1468 provide snap structure 1474 that are engaged by the head portion of snap structure 1476.
  • the base frame 1444 provides annular groove 1496.
  • the groove 1496 has pockets
  • SUBSTITUTE SHEET (RULE 26) 1497 that extend entirely axially through the sidewalls forming the base frame 1444.
  • the groove 1496 and included pockets 1497 allow a portion 1498 of gasket member 1441 to be molded to the base frame 1444.
  • the gasket member 1441 is molded directly to base frame 1444 after the rest of the filter element 1400 has generally been assembled.
  • portion 1498 of gasket member 1441 will extend through pockets 1497 and within groove 1496. This portion 1498 will seal the end caps 1468 to the base frame 1444 as well as seal ends 1502 of the filter media portions 1402, 1404 to the base frame 1444.
  • the gasket member 1441 provides a housing seal, seals the filter media, at least in part, to the base frame 1444 and seals end cap structures 1446, 1448 to the base frame.
  • Support frame 1442 is substantially similar to support frame 1242 discussed previously. Preferably, the support frame 1442 is formed in a more flat orientation and then folded into the A-shaped orientation of FIG. 44.
  • the first panel support 1450 includes a first engagement region 1470 that cooperates with a second engagement region 1471 of the second panel support 1452.
  • the first and second engagement regions 1470, 1471 have a male-female configuration where engagement region 1470 is a female receiver that receives the male second engagement region 1471.
  • the first engagement region includes side portions 1473 that form a slot that receives second engagement region 1471.
  • Adhesive, friction, welding, mechanically engaging nibs and slots or other means can be used to secure the second engagement region 1471 within the slot of the first engagement region 1470.
  • engagement regions 1470, 1471 are provided by the central elongated segments 1465, they could be provided on more or different ones of the elongated segments.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Dans un mode de réalisation, un cadre de support de milieu filtrant destiné à supporter des premier et second panneaux de milieu filtrant dans une relation espacée est divulgué. Le cadre de support de milieu filtrant comprend un premier support de panneau, un second support de panneau et une partie de liaison. Le premier support de panneau comprend un premier côté interne et un premier côté externe. Le second support de panneau comprend un second côté interne et un second côté externe. Le second côté interne fait face au premier support de panneau. La première partie de liaison est reliée de manière articulée au premier support de panneau par une première partie de charnière et est reliée de manière articulée au second support de panneau par une seconde partie de charnière. Des éléments filtrants comprenant le support de milieu filtrant et un milieu filtrant sont divulgués.
PCT/US2021/059713 2020-11-20 2021-11-17 Filtre doté d'éléments de protection WO2022109017A1 (fr)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17/100,714 US20210069629A1 (en) 2015-07-15 2020-11-20 Filter with shield features
US17/100,714 2020-11-20

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138874A (en) * 1936-03-05 1938-12-06 Owens Illinois Glass Co Filter unit
GB640873A (en) * 1948-09-21 1950-08-02 Ozonair Ltd Improvements in or relating to air filters
US3871849A (en) * 1973-04-05 1975-03-18 American Air Filter Co Disposable carbon filter
US5693108A (en) * 1995-09-15 1997-12-02 Consler Corporation One-piece filter housing
US6214076B1 (en) * 1999-02-09 2001-04-10 Products Unlimited, Inc. Adjustable mounting system for filtration media
EP1270059A1 (fr) * 2001-06-28 2003-01-02 Frank Hammes Elément filtrant à usage unique et patron de pliage pour la fabrication du filtre.
JP3381006B2 (ja) * 1993-10-19 2003-02-24 日本バイリーン株式会社 折り畳み式フィルタ
US7410520B2 (en) * 2006-12-22 2008-08-12 Hamilton Beach Brands, Inc. Foldable filter for an air filtration unit and method
WO2014040657A1 (fr) * 2012-09-12 2014-03-20 Camfil Ab Cadre filtrant
WO2017011787A1 (fr) * 2015-07-15 2017-01-19 Baldwin Filters, Inc. Ensemble de maintien à plusieurs composants destiné à un filtre à air à plusieurs panneaux
EP3322504A1 (fr) * 2015-07-15 2018-05-23 Baldwin Filters, Inc. Ensemble de maintien à plusieurs composants destiné à un filtre à air à plusieurs panneaux
CN110227309A (zh) * 2019-05-17 2019-09-13 美埃（中国）环境净化有限公司 一种滤芯可替换的v型空气过滤器

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2138874A (en) * 1936-03-05 1938-12-06 Owens Illinois Glass Co Filter unit
GB640873A (en) * 1948-09-21 1950-08-02 Ozonair Ltd Improvements in or relating to air filters
US3871849A (en) * 1973-04-05 1975-03-18 American Air Filter Co Disposable carbon filter
JP3381006B2 (ja) * 1993-10-19 2003-02-24 日本バイリーン株式会社 折り畳み式フィルタ
US5693108A (en) * 1995-09-15 1997-12-02 Consler Corporation One-piece filter housing
US6214076B1 (en) * 1999-02-09 2001-04-10 Products Unlimited, Inc. Adjustable mounting system for filtration media
EP1270059A1 (fr) * 2001-06-28 2003-01-02 Frank Hammes Elément filtrant à usage unique et patron de pliage pour la fabrication du filtre.
US7410520B2 (en) * 2006-12-22 2008-08-12 Hamilton Beach Brands, Inc. Foldable filter for an air filtration unit and method
WO2014040657A1 (fr) * 2012-09-12 2014-03-20 Camfil Ab Cadre filtrant
WO2017011787A1 (fr) * 2015-07-15 2017-01-19 Baldwin Filters, Inc. Ensemble de maintien à plusieurs composants destiné à un filtre à air à plusieurs panneaux
EP3322504A1 (fr) * 2015-07-15 2018-05-23 Baldwin Filters, Inc. Ensemble de maintien à plusieurs composants destiné à un filtre à air à plusieurs panneaux
CN110227309A (zh) * 2019-05-17 2019-09-13 美埃（中国）环境净化有限公司 一种滤芯可替换的v型空气过滤器

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