# US 10,118,120 B2 · Filter cartridge arrangements and assemblies; preferred features; methods of assembly and use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,118,120 B2 - Document ID: US10118120B2 - Status: Granted - Kind: B2 - Application number: 14/892,846 - Filed: 2014-05-30 - Published: 2016-05-26 - Granted: 2018-11-06 - Earliest claimed: 2013-05-31 - Assignees: Donaldson Company, Inc. - Applicants: Massimo Movia; Julien Dils; Paul Gossez - Inventors: Massimo Movia; Julien Dils; Paul Gossez - Web page: https://patentgrep.com/patent/US10118120B2 ## CPC - B01D 46/2414: {End caps including additional functions or special forms} - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/0046: {provoking a tangential stream (B01D46/0045 takes precedence)} - B01D 46/2411: {Filter cartridges} - B01D 46/521: {using folded, pleated material} - B01D 46/523: {with means for maintaining spacing between the pleats or folds} - B01D 46/64: arranged concentrically or coaxially - B01D 2265/021: Anti-rotational means - B01D 2265/026: with means for avoiding false mounting - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - B01D 2271/027: Radial sealings - B01D 2275/206: Special forms, e.g. adapted to a certain housing - 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 The present disclosure relates to filter assemblies. The features described and characterized are typically applied in gas (for example, air) cleaner assemblies. A typical use is in air cleaner assemblies for vehicles or other equipment. The techniques described relate, at least in part, to provision of assemblies with preferred configurations for convenient servicing and operation, while ensuring a proper cartridge is appropriately positioned, oriented and secured for use. Many of the techniques relate to arrangements in which features at opposite ends of a housing and/or cartridge are eccentrically positioned as described. ## Claims ### Claim 1 A filter cartridge comprising: (a) pleated filter media surrounding an open filter interior; (i) the filter media having first and second ends; (b) a first end piece positioned at the first end of the filter media; (i) the first end piece having a flow aperture therethrough; and, (ii) the first end piece including a radially directed housing seal member thereon; (c) a second end piece positioned at the second end of the filter media; (d) the filter media first end defining a first media outer perimeter at a location adjacent the first end piece; and, (e) the filter media second end defining a second media outer perimeter at a location adjacent the second end piece; (i) the first and second media outer perimeters being eccentrically aligned with respect to one another; and (ii) the first media outer perimeter, defined by outer pleat tips, has a first dimension of length and the second media outer perimeter has a second dimension of length, the first dimension of length being within 90-110% of the second dimension of length. ### Claim 2 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the second end piece is closed, and has no aperture therethrough, in direct flow communication with the open filter interior; and, (b) the second end piece includes a receiver projection extending into the open filter interior a distance, from the filter media second end toward the filter media first end, corresponding to at least 10% of a distance from the filter media second end to the filter media first end; (i) the receiver projection defining a receiver recess at an opposite side thereof, from the open filter interior. ### Claim 3 (depends on 2) A filter cartridge according to claim 2 wherein: (a) the receiver projection of the second end piece has a portion with a non-circular cross-sectional shape in a plane perpendicular to a direction of extension of the media. ### Claim 4 (depends on 2) A filter cartridge according to claim 2 wherein: (a) the receiver projection has a shape with: (i) a cap portion remote from the second end of the media having a circular cross-sectional shape; and, (ii) a base portion extending between the cap portion and a location adjacent the second end of the media; the base portion having a central section with a non-circular cross-sectional shape. ### Claim 5 (depends on 2) A filter cartridge according to claim 2 wherein: (a) the second end piece includes a second housing engagement member comprising a second resistive housing engagement member. ### Claim 6 (depends on 5) A filter cartridge according to claim 5 wherein: (a) the second resistive housing engagement member is a radially inwardly directed housing engagement member. ### Claim 7 (depends on 5) A filter cartridge according to claim 5 wherein: (a) the second, resistive, housing engagement member comprises an axially inwardly directed engagement member surrounding an opening into a receiver projection in the second end piece. ### Claim 8 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the second end piece includes a recess therein having a radially inwardly projecting, radial alignment locator projection arrangement thereon. ### Claim 9 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the second end piece includes an outer surface portion having a central axial projection thereon projecting in a direction away from the open filter interior and the first end piece. ### Claim 10 (depends on 9) A filter cartridge according to claim 9 wherein: (a) the central axial projection has a shape, in extension around a receiver space, having an outer surface comprising a plurality of radially outwardly projecting lobes separated by recesses. ### Claim 11 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the radially directed housing seal member includes a radially outwardly directed housing seal member. ### Claim 12 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the radially directed housing seal member comprises an integral portion of a molded-in-place portion of the first end piece. ### Claim 13 (depends on 12) A filter cartridge according to claim 12 wherein: (a) the radially directed housing seal member defines a seal surface having non-circular configuration comprising at least three lobes alternating with at least three recesses to define a plurality of spaced radially directed lobes in the seal surface, in direction around, and relative to, a central axis surrounded by the seal surface. ### Claim 14 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the second end piece has an outer perimeter; (i) the radially directed housing seal member and the second end piece outer perimeter being eccentrically aligned with respect to one another. ### Claim 15 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the first end piece includes a first housing seal member thereon having a seal pattern surrounding a first housing seal member center c1; and, (b) the second end piece includes a second housing engagement member having an engagement pattern surrounding a second housing engagement member center c2; (c) the centers c1 and c2 being eccentrically aligned. ### Claim 16 (depends on 15) A filter cartridge according to claim 15 wherein: (a) the centers c1 and c2 are offset by an eccentricity distance Z of at least 5 mm. ### Claim 17 (depends on 1) A filter cartridge according to claim 1 wherein: (a) the first end piece having a radially outwardly directed first housing radial seal thereon; and, (b) the second end piece has a radially inwardly directed, resistive, second housing engagement member thereon; and, (i)the radially directed housing seal member and the resistive second housing engagement member being eccentrically aligned relative to one another. ### Claim 18 (depends on 1) A filter cartridge according to claim 1 including: (a) a liner support having a first inner liner support section with a first inner liner end and a second inner liner end; (i) the first and second inner liner ends being eccentrically aligned with respect to one another; (b) the filter media surrounds the inner liner support section; (i) the first end of the filter media being adjacent the first inner liner end and the second end of the filter media being adjacent the second inner liner end. ### Claim 19 (depends on 18) A filter cartridge according to claim 18 wherein: (a) the liner support includes a first end member in axial overlap with the first media end including a seal support member secured to the inner liner section by spaced extensions; the seal support member is non-circular and eccentrically aligned relative to the second end of the liner support. ### Claim 20 (depends on 1) An air cleaner assembly comprising: (a) a housing having: at least one access cover; an air flow inlet; and, an air flow outlet; and, (b) a filter cartridge according to claim 1 operably positioned within the housing and releasably sealed thereto.