# US 10,870,074 B2 · Multi-component holding assembly for multi-panel air filter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,870,074 B2 - Document ID: US10870074B2 - Status: Granted - Kind: B2 - Application number: 15/211,527 - Filed: 2016-07-15 - Published: 2017-01-19 - Granted: 2020-12-22 - Earliest claimed: 2015-07-15 - Assignees: Baldwin Filters, Inc. - Applicants: Benny Mathew Varghese; Levi William Dexter - Inventors: Benny Mathew Varghese; Levi William Dexter - Web page: https://patentgrep.com/patent/US10870074B2 ## CPC - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/121: V-type arrangements - B01D 46/4227: {Manipulating filters or filter elements, e.g. handles or extracting tools} - B01D 46/521: {using folded, pleated material} - B01D 46/58: connected in parallel - B01D 2265/04: Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding - B01D 2271/02: Gaskets, sealings - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) ## Abstract A filter element and multi-component holding assembly for a filter element is provided. The filter element includes first and second media panels, a support frame, a base frame and first and second end cap structures. Each filter media panel defines first, second, third and fourth sides. The first and second sides extend between the third and fourth sides. The support frame maintains the first and second filter media panels in a spaced orientation forming a cavity therebetween. The base frame defines a first opening in fluid communication with the cavity. The first end cap structure seals the third side of the first and second filter media panels and the second end cap structure 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. ## Claims ### Claim 1 A filter element comprising: first and second filter media panels, each filter media panel defining 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; a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween; a base frame defining a first opening in fluid communication with the cavity; first and second end cap structures, the first end cap structure operably sealing the third side of the first and second filter media panels and the second end cap structure operably sealing the fourth side of the first and second filter media panels, the base frame having a first portion captured in the first end cap structure and a second portion captured in the second end cap structure; and the first portion of the base frame is first outward extending flange that is received inside the first end cap structure and the second portion of the base frame is a second outward extending flange that is received inside the second end cap structure, the first and second flanges being on opposite sides of the first opening and extending outward away from one another. ### Claim 2 (depends on 1) The filter element of claim 1, wherein the support frame 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 side of the support frame being positioned adjacent the first sides of the first and second filter media panels; the second side of the support frame being positioned adjacent the second sides of the first and second filter media panels; the third side of the support frame being positioned adjacent the third sides of the first and second filter media panels; the fourth side of the support frame being positioned adjacent the fourth sides of the first and second filter media panels. ### Claim 3 (depends on 2) The filter element of claim 2, wherein 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. ### Claim 4 (depends on 2) The filter element of claim 2, further comprising 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 extending between first and second ends, the first end being captured in the first end cap structure and the second end being captured in the second end cap structure. ### Claim 5 (depends on 4) The filter element of claim 4, wherein the first and second filter media panels are pleated media panels, wherein 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. ### Claim 6 (depends on 2) The filter element of claim 2, wherein the second side of the support frame overlaps, at least in part, the second sides of the first and second filter media panels. ### Claim 7 (depends on 2) The filter element of claim 2, wherein 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. ### Claim 8 (depends on 7) The filter element of claim 7, wherein 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. ### Claim 9 (depends on 8) The filter element of claim 8, wherein 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 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. ### Claim 10 (depends on 1) The filter element of claim 1, further comprising a housing seal carried by the base frame for operably sealing the filter element to a housing structure. ### Claim 11 (depends on 1) The filter element of claim 1, wherein the first and second end cap structures are formed from rigid urethane, the rigid urethane capturing 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. ### Claim 12 (depends on 1) The filter element of claim 1, wherein the first sides of the first and second filter media panels are sealingly attached to the base frame. ### Claim 13 (depends on 1) The filter element of claim 1, wherein 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. ### Claim 14 (depends on 13) The filter element of claim 13, wherein the support frame and base 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 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. ### Claim 15 (depends on 14) The filter element of claim 14, wherein 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 supported on the first tapered locating surfaces and the first side of the second filter media panel supported on the second tapered locating surfaces. ### Claim 16 (depends on 15) The filter element of claim 15, wherein the 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. ### Claim 17 (depends on 15) The filter element of claim 15, wherein 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. ### Claim 18 A filter element comprising: first and second filter media panels, each filter media panel defining 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 extended between the third and fourth sides which are offset from one another; a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween; a base frame defining a first opening in fluid communication with the cavity; first and second end cap structures, the first end cap structure operably sealing the third side of the first and second filter media panels and the second end cap structure operably sealing the fourth side of the first and second filter media panels, the base frame having a first portion captured in the first end cap structure and a second portion captured in the second end cap structure, and wherein 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 capturing 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. ### Claim 19 A filter element comprising: first and second filter media panels, each filter media panel defining first, second, third and fourth sides, for each filter media panel, 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; a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween; a base frame defining 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 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; wherein 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; a first end cap capturing therein the third side of the first and second filter media panels, the first tapered locating surface, and a first end of the support frame, a second end cap capturing therein the fourth side of the first and second filter media panels, the tapered locating surface, and a second end of the support frame, opposite the first end. ### Claim 20 (depends on 19) The filter element of claim 19, wherein the first and second tapered locating surfaces are non-perpendicular and non-parallel to one another. ### Claim 21 (depends on 19) The filter element of claim 19, wherein the first and second tapered locating surfaces are non-perpendicular and non-parallel to a bisecting plane extending between the first and second filter media panels, the first and second tapered locating surfaces extending 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. ### Claim 22 (depends on 19) The filter element of claim 19, wherein the 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. ### Claim 23 (depends on 19) The filter element of claim 19, wherein 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. ### Claim 24 A filter element comprising: first and second filter media panels, each filter media panel defining first, second, third and fourth sides, for each filter media panel, 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; a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween; a base frame defining 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 being 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; and the support frame being directly mechanically snap attached to the base frame. ### Claim 25 (depends on 24) The filter element of claim 24, further comprising a handle member, the handle member being attached to the support frame, proximate the second sides of the filter media panels. ### Claim 26 (depends on 25) The filter element of claim 25, further comprising first and second end cap structures, the base frame having a first portion captured in the first end cap structure and a second portion captured in the second end cap structure. ### Claim 27 (depends on 26) The filter element of claim 26, wherein: 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, the third and fourth sides being spaced apart and extending between the first and second sides, the third side of the support frame being captured by the first end cap structure and the fourth side of the support frame being captured by the second end cap structure. ### Claim 28 (depends on 27) The filter element of claim 27, wherein 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. ### Claim 29 A frame for holding first and second filter media panels, the frame comprising: a base frame defining a first opening therethrough; a support frame mechanically, snap attached to the base frame and extending outward therefrom, the base frame and support frame 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 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 being 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. ### Claim 30 (depends on 29) The frame of claim 29, wherein 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. ### Claim 31 (depends on 30) The frame of claim 30, wherein: the third side of the support frame 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 being closer to the first side of the support frame than the second side of the support frame; the fourth side of the support frame is formed by a pair of fourth side elongated segments that converge at the second side and a fourth side cross brace that extends between the pair of first side elongated segments, the fourth side cross brace being closer to the first side of the support frame than the second side of the support frame. ### Claim 32 A filter element comprising: first and second filter media panels, each filter media panel defining first, second, third and fourth sides, for each filter media panel, 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; a support frame maintaining the first and second filter media panels in a generally spaced orientation forming a cavity therebetween, the support frame being located between first and second filter media panels; a base frame defining a first opening in fluid communication with the cavity and located proximate the first sides of the first and second filter media panels; and first and second support screens, each screen being substantially L-shaped having a first side portion and an interior face portion, the first side portion of the first support screen being adjacent the first side of the first filter media panel and the interior face portion being adjacent the interior face of the first filter media, the first side portion of the second support screen being adjacent the first side of the second filter media panel and the interior face portion of the second support screen being adjacent the interior face of the second filter media. ### Claim 33 (depends on 32) The filter element of claim 32, wherein: 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. ### Claim 34 (depends on 33) The filter element of claim 33, wherein 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. ### Claim 35 A filter element comprising: first and second filter media panels, each filter media panel defining 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; first and second frame members maintaining the first and second filter media panels in a non-parallel orientation forming a cavity therebetween with the second sides adjacent one another and the first sides spaced apart from one another; the first frame member including a first portion that extends over at least a portion of the second side of the first filter media panel and a second portion that extends over at least a portion of the second side of the second filter media panel; the second frame member including a first portion that extends over the first side of the first filter media panel and a second portion that extends over the first side of the second filter media panel; a first end cap structure attached to the third side of the first filter media panel and the third side of the second filter media panel, the first end cap structure capturing portions of the first and second frame members therein; a second end cap structure attached to the fourth side of the first filter media panel and the fourth side of the second filter media panel, the second end cap structure capturing portions of the first and second frame members therein, wherein the portions of the first frame member that are captured in the first and second end caps are located between the first and second end caps; and wherein the portions of the second frame member that are captured in the first and second end caps are located between the first and second end caps. ### Claim 36 (depends on 35) The filter element of claim 35, wherein: the first end cap structure includes an adhesive material that captures the third side of the first filter media panel and the third side of the second filter media panel; the second end cap structure includes an adhesive material that captures the fourth side of the first filter media panel and the third side of the second filter media panel. ### Claim 37 (depends on 36) The filter element of claim 36, wherein: the adhesive material of the first end cap structure captures a portion of the first frame member and a portion of the second frame member; and the adhesive material of the second end cap structure captures a portion of the first frame member and a portion of the second frame member. ### Claim 38 (depends on 36) The filter element of claim 36, wherein: the first end cap structure includes a first cupped end cap secured to the first and second filter media panels and the first and second frame members by the adhesive material of the first end cap structure; the second end cap structure includes a second cupped end cap secured to the first and second filter media panels and the first and second frame members by the adhesive material of the second end cap structure. ### Claim 39 (depends on 35) The filter element of claim 35, wherein the first portion of the first frame member covers less than the entirety of the second side of the first filter media panel and the second portion of the first frame member covers less than the entirety of the second side of the second filter media panel. ### Claim 40 (depends on 39) The filter element of claim 39, wherein the second frame member includes: a first plurality of tapered surfaces positioned adjacent to the first side of the first filter media panel; and a second plurality of tapered surfaces positioned adjacent to the first side of the second filter media panel. ### Claim 41 (depends on 40) The filter element of claim 40, wherein the first plurality of tapered surfaces form an angle with the second plurality of tapered surfaces that is less than one hundred eighty degrees. ### Claim 42 (depends on 41) The filter element of claim 41, wherein the first portion of the first frame member has a first tapered bottom surface and the second portion of the first frame member has a second tapered bottom surface, the first and second tapered bottom surfaces extend at an angle relative to one another that is greater than one hundred eighty degrees. ### Claim 43 (depends on 42) The filter element of claim 42, wherein: the first tapered bottom surface of the first portion of the first frame member is parallel to the first plurality of tapered surfaces of the second frame member; and the second tapered bottom surface of the second portion of the first frame member is parallel to second plurality of tapered surfaces of the second frame member. ### Claim 44 (depends on 35) The filter element of claim 35, wherein the first and second frame members directly engage one another. ### Claim 45 (depends on 35) The filter element of claim 35, wherein the first and second media panels, first and second end cap structures and first and second frame members are permanently secured together by the first and second end cap structures.