# US 10,500,533 B2 · Filter elements; air cleaner; assembly; and, methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,500,533 B2 - Document ID: US10500533B2 - Status: Granted - Kind: B2 - Application number: 15/978,263 - Filed: 2018-05-14 - Published: 2018-12-20 - Granted: 2019-12-10 - Earliest claimed: 2002-04-04 - Assignees: Donaldson Company, Inc. - Applicants: Donaldson Company, Inc. - Inventors: William Krisko; Wayne W. Bishop; Steven Scott Gieseke; Carolyn J. Finnerty; David W. Nelson - Web page: https://patentgrep.com/patent/US10500533B2 ## CPC - B01D 46/525: {which comprises flutes} - B01D 27/06: with corrugated, folded or wound material - B01D 45/12: by centrifugal forces (centrifuges B04B; cyclones B04C) - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/0015: {Throw-away type filters} - B01D 46/0095: {Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes} - B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces - B01D 46/4227: {Manipulating filters or filter elements, e.g. handles or extracting tools} - B01D 46/521: {using folded, pleated material} - B01D 46/527: {in wound arrangement} - B01D 50/20: Combinations of devices covered by groups B01D45/00 and B01D46/00 - B01D 2265/06: Details of supporting structures for filtering material, e.g. cores - B01D 2267/40: Different types of filters - B01D 2271/022: Axial sealings - Y10T 29/49826: Assembling or joining - 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) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally comprises z-filter media, arranged in a straight through configuration, and an axial seal gasket positioned to extend continuously around at outer perimeter of the straight through flow construction. The fluid cleaner assembly can have a precleaner positioned therein. Methods of assembly and use are provided. ## Claims ### Claim 1 An air filter cartridge comprising: (a) a z-filter media construction having an inlet flow face, an opposite outlet flow face, and a non-circular outer perimeter, wherein the z-filter media construction comprises: (i) a coiled construction of fluted media secured to non-fluted media; and (ii) a receiving socket in the outlet flow face; (b) a frame member secured to the z-filter media construction and including a seal support extending away from the z-filter media construction; and (c) a seal member attached to the seal support and constructed to provide a seal with an air cleaner housing. ### Claim 2 (depends on 1) An air filter cartridge according to claim 1 further wherein: (a) the receiving socket comprises a non-cylindrical core construction within said z-filter media construction, the non-cylindrical core construction having opposing walls defining an open volume therebetween. ### Claim 3 (depends on 2) An air filter cartridge according to claim 2 wherein: (a) the opposing walls of the non-cylindrical receiving socket are joined by curved ends. ### Claim 4 (depends on 2) An air filter cartridge according to claim 2 wherein: (a) the opposing walls of the non-cylindrical receiving socket define a gap of not more than about 20 mm. ### Claim 5 (depends on 2) An air filter cartridge according to claim 2 wherein: (a) the non-cylindrical core construction defines first and second receiver pockets. ### Claim 6 (depends on 5) An air filter cartridge according to claim 5 wherein: (a) non-cylindrical core construction comprises a centering structure that divides the first and second receiver pockets. ### Claim 7 (depends on 6) An air filter cartridge according to claim 6 wherein: (a) the centering structure of the non-cylindrical core construction is constructed to help center the air filter cartridge when installing the air filter cartridge in an air cleaner housing. ### Claim 8 (depends on 2) An air filter cartridge according to claim 2 wherein: (a) the non-cylindrical core construction is constructed to receive a handle arrangement from a safety filter installed in an air cleaner housing. ### Claim 9 (depends on 2) An air filter cartridge according to claim 2 wherein: (a) the non-cylindrical core construction extends completely between the inlet flow face and the outlet flow face of said z-filter media construction. ### Claim 10 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said z-filter media construction includes a plurality of flutes; each of said flutes having an upstream portion adjacent to said inlet flow face and a downstream portion adjacent to said outlet flow face; wherein selected ones of said flutes being open at said upstream portion and closed at said downstream portion; and selected ones of said flutes being closed at said upstream portion and open at said downstream portion. ### Claim 11 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said z-filter media construction has a racetrack-shaped cross-section. ### Claim 12 (depends on 11) An air filter cartridge according to claim 11 wherein: (a) said z-filter media construction has opposite straight sections joined by opposite rounded end sections. ### Claim 13 (depends on 12) An air filter cartridge according to claim 12 wherein: (a) the opposite rounded end sections are semi-circular; and (b) the opposite straight sections are parallel to each other. ### Claim 14 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said z-filter media construction has an oval-shaped cross-section. ### Claim 15 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) the seal support of said frame member extends radially away from said z-filter media construction. ### Claim 16 (depends on 15) An air filter cartridge according to claim 15 wherein: (a) said seal support extends completely, peripherally, around said z-filter media construction. ### Claim 17 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said seal member includes a portion located within 5 mm of one of the flow faces. ### Claim 18 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said frame member includes a band secured to the non-circular outer perimeter of said z-filter media construction. ### Claim 19 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said frame member includes a portion extending over one of the flow faces. ### Claim 20 (depends on 19) An air filter cartridge according to claim 19 wherein: (a) the portion extending over one of flow faces extends from the non-circular outer perimeter of said z-filter media construction. ### Claim 21 (depends on 19) An air filter cartridge according to claim 19 wherein: (a) the portion extending over one of the flow faces comprises a lip. ### Claim 22 (depends on 1) An air filter cartridge according to claim 1 wherein: (a) said frame member further includes a brace construction that provides the strength to the air filter cartridge. ### Claim 23 (depends on 22) An air filter cartridge according to claim 22 wherein: (a) the brace construction is provided extending over the inlet flow face of said z-filter media construction. ### Claim 24 An air filter cartridge comprising: (a) a z-filter media construction having an inlet flow face, an opposite outlet flow face, and a non-circular outer perimeter, wherein the z-filter media construction comprises: (i) a coiled construction of fluted media secured to non-fluted media and including a plurality of flutes, each of said flutes having upstream portion adjacent to said inlet flow face and a downstream portion adjacent to said outlet flow face, wherein selected ones of said flutes being open at said upstream portion and closed at said downstream portion, and selected ones of said flutes being closed at said upstream portion and open at said downstream portion; (ii) a receiving socket in the outlet flow face; and (iii) a non-cylindrical core construction within the receiving socket of said z-filter media construction, wherein the non-cylindrical core construction includes opposing walls joined by ends and is constructed to receive a projection when the air filter cartridge is installed in an air cleaner housing; (b) a frame member secured to the z-filter media construction and including a seal support extending away from the z-filter media construction; and (c) a seal member attached to the seal support and constructed to provide a seal with an air cleaner housing.