# US 11,992,796 B2 · Filter frame with foldable sealing flap > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,796 B2 - Document ID: US11992796B2 - Status: Granted - Kind: B2 - Application number: 17/353,253 - Filed: 2021-06-21 - Published: 2022-01-13 - Granted: 2024-05-28 - Earliest claimed: 2020-07-09 - Assignees: Baldwin Filters, Inc. - Applicants: Levi William Dexter - Inventors: Levi William Dexter - Web page: https://patentgrep.com/patent/US11992796B2 ## CPC - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces - B01D 46/0001: {Making filtering elements} - B01D 46/0002: {Casings; Housings; Frame constructions} - B01D 46/0016: {Folded frame or housing constructions} - B01D 46/521: {using folded, pleated material} - B01D 2265/04: Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - 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 Filter elements and methods of manufacturing filter elements are provided. Examples of filter elements include a media pack and a frame attached thereto. In one example, the frame includes a side panel that is or includes a foldable portion. The foldable portion is folded away from the media pack and an adhesive is located therebetween during assembly. In other examples, a media support member is provided that includes at least one side support panel that supports a side of the media pack. A portion of the side support member is positioned between adjacent pleat panels of the media pack. ## Claims ### Claim 1 A filter element comprising: a media pack; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack; a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the frame to the media pack; wherein: the media pack has a plurality of pleat panels, pairs of adjacent ones of the plurality of pleat panels being interconnected by a fold; a media support member having a first side support panel having a first portion interposed between first and second pleat panels of a first pair of adjacent pleat panels; the adhesive being interposed between the first pleat panel and the frame with the adhesive directly contacting the frame and directly contacting the first pleat panel. ### Claim 2 (depends on 1) The filter element of claim 1, wherein the media pack has a first flow face, a second flow face opposed to the first flow face, and a first side extending between the first and second flow faces, the first side is formed, at least in part, by the first pleat panel, the first side support panel positioned, at least in part, between the first and second flow faces and being adjacent the first side. ### Claim 3 (depends on 2) The filter element of claim 2, wherein the first pleat panel extends less than an entire length between the first flow face and the second flow face such that the second pleat panel forms part of the first side of the media pack. ### Claim 4 (depends on 3) The filter element of claim 3, wherein the first side support panel overlaps, at least in part, a portion of the second pleat panel that forms part of the first side of the media pack, the portion being positioned between the first pleat panel and the second flow face. ### Claim 5 (depends on 1) The filter element of claim 1, wherein the media pack is formed from a first material and the first side support panel is formed from a second material, the second material being plastic or cardboard. ### Claim 6 (depends on 1) The filter element of claim 1, further comprising an attachment mechanism between at least one of the first and second pleat panels and the first side support panel. ### Claim 7 (depends on 6) The filter element of claim 6, wherein the attachment mechanism is double-sided tape. ### Claim 8 (depends on 1) The filter element of claim 1, wherein: the media pack includes third and fourth pleat panels forming a second pair of adjacent pleat panels, the first pair of pleat panels being proximate a first side of the filter media pack and the second pair of pleat panels being proximate an opposed second side of the filter media pack; the media pack includes opposed first and second flow faces, the first and second sides extending between the first and second flow faces; the media support member includes a second side support panel having a second portion interposed between third and fourth pleat panels, the second side support panel adjacent the second side; the adhesive being interposed between the third pleat panel and the frame with the adhesive directly contacting the frame and directly contacting the third pleat panel. ### Claim 9 (depends on 8) The filter element of claim 8, wherein: the media support member includes a flow face support panel extending across the second flow face of the media pack between the first and second sides of the media pack; and the flow face support panel is connected to the first and second side support panels. ### Claim 10 (depends on 9) The filter element of claim 9, wherein the flow face support panel and first and second side support panels are formed from a continuous piece of material. ### Claim 11 (depends on 10) The filter element of claim 10, wherein: a first web of material is positioned between and connects the flow face support panel to the first side support panel; and a second web of material is positioned between and connects the flow face support panel to the second side support panel. ### Claim 12 (depends on 11) The filter element of claim 11, wherein: the first web of material has a thickness that is less than a thickness of the flow face support panel proximate the first web and less than a thickness of the first side support panel proximate the first web; and the second web of material has a thickness that is less than a thickness of the flow face support panel proximate the second web and less than a thickness of the second side support panel proximate the second web. ### Claim 13 A filter element comprising: a media pack having first and second opposed flow faces and a first side extending between the first and second flow faces; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack during assembly, the foldable portion having a distal free end; and a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the distal free end adjacent to the first side of the media pack after assembly. ### Claim 14 (depends on 13) The filter element as in claim 13, wherein: the media pack comprises an elongated rectangular structure with opposing side surfaces; and the frame includes a pair of side panels, with each side panel extending along a respective side surface of the media pack, and each side panel having a foldable portion, with a mass of adhesive between the foldable portion of each side panel and the respective side surface of the media pack. ### Claim 15 (depends on 13) The filter element as in claim 13, wherein the side panel includes a fixed first portion adjacent a base of the frame and a hinge between the first portion and the foldable portion. ### Claim 16 (depends on 15) The filter element of claim 15, wherein the first portion and the foldable portion are formed from a continuous piece of material and the hinge is a living hinge formed from material connecting the first portion to the foldable portion. ### Claim 17 A filter element comprising: a media pack; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack; a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the frame to the media pack; wherein the side panel includes a fixed first portion adjacent a base of the frame and a hinge between the first portion and the foldable portion; wherein the hinge has a reduced thickness as compared to a thickness of the first portion proximate the foldable portion and a thickness of the foldable portion proximate the first portion. ### Claim 18 A filter element comprising: a media pack; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack; a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the frame to the media pack; wherein the side panel includes a fixed first portion adjacent a base of the frame and a hinge between the first portion and the foldable portion; wherein a first groove is formed between the first portion and the foldable portion at the hinge. ### Claim 19 (depends on 18) The filter element of claim 18, wherein the first portion and foldable portion each have an inner side that faces the media pack, the first groove is formed between the inner side of the first portion and the outer side of the foldable portion. ### Claim 20 (depends on 17) The filter element of claim 17, wherein a second groove is formed between the first portion and the foldable portion at the hinge. ### Claim 21 (depends on 20) The filter element of claim 20, wherein the first portion and foldable portion each have an outer side that faces away from the media pack, the second groove is formed between the outer side of the first portion and the outer side of the foldable portion. ### Claim 22 A filter element comprising: a media pack; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack; a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the frame to the media pack; wherein the side panel includes a fixed first portion adjacent a base of the frame and a hinge between the first portion and the foldable portion; wherein: the first portion and foldable portion each have an inner side that faces the media pack, a first groove is formed between the inner side of the first portion and the inner side of the foldable portion at the hinge, the first groove has a first depth; and the first portion and foldable portion each have an outer side that faces away from the media pack, a second groove is formed between the outer side of the first portion and the outer side of the foldable portion at the hinge, the second groove has a second depth that is different than the first depth. ### Claim 23 A filter element comprising: a media pack; a frame including at least one side panel extending along a side of the media pack, the side panel having a foldable portion enabling the side panel to be folded relative to the media pack; a mass of adhesive between the foldable portion of the side panel and the media pack, fixing the frame to the media pack; and an end cap secured to an end of the media pack, the end cap having a sidewall extending over the side of the media pack, the foldable portion being located between the side of the media pack and the sidewall of the end cap with the foldable portion being folded towards the media pack. ### Claim 24 A method of assembling a filter element including a frame, a media pack, and a media support member, the media support member includes at least one side panel positioned adjacent the side of the media pack, wherein the frame includes at least one side flap extending along a side of the media pack, comprising the steps of: i. folding a foldable portion of the at least one side flap away from the media pack; ii. applying a bead of adhesive between the foldable portion of the side flap and the media pack; iii. folding the foldable portion of the side flap back towards the media pack, capturing the adhesive between the side flap and the media pack; iv. curing the adhesive; the method further comprising: i. folding a portion of the media pack to form first and second pleat panels; ii. positioning the side panel of the media support member adjacent the side of the media pack such that a portion of the side panel is positioned between the first and second pleat panels; iii. positioning the media pack within the frame with frame extending over the first pleat panel such that the first pleat panel is located between the frame and the side panel of the media support member; and iv. applying the bead of adhesive between the frame and the first pleat panel of the media pack such that the adhesive directly contacts an inner surface of frame and an outer surface of the first pleat panel. ### Claim 25 (depends on 24) The method of claim 24, wherein the frame includes a side panel that extends from an annular body portion of the frame, the side panel extends over the side of the media pack, the adhesive is directly engaged with an inner surface of the side panel.