# US 8,771,395 B2 · Filter cartridge with seal member and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,771,395 B2 - Document ID: US8771395B2 - Status: Granted - Kind: B2 - Application number: 13/943,451 - Filed: 2013-07-16 - Published: 2013-11-14 - Granted: 2014-07-08 - Earliest claimed: 2009-10-14 - Assignees: Donaldson Company, Inc. - Applicants: Donaldson Company, Inc. - Inventors: Thomas Donald Raether - Web page: https://patentgrep.com/patent/US8771395B2 ## CPC - B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)} - B01D 46/121: V-type arrangements - B01D 46/42: Auxiliary equipment or operation thereof - B01D 46/4227: {Manipulating filters or filter elements, e.g. handles or extracting tools} - B01D 46/525: {which comprises flutes} - B01D 46/526: {in stacked arrangement} - B01D 46/71: with pressurised gas, e.g. pulsed air - F16J 15/02: between relatively-stationary surfaces (F16J15/46, F16J15/48 take precedence) - B01D 2265/025: making use of ramps or cams - B01D 2265/04: Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding - B01D 2267/30: Same type of filters - B01D 2267/60: Vertical arrangement - B01D 2271/02: Gaskets, sealings - Y10T 29/4973: Replacing of defective part - 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) - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An air filter cartridge has filter media and a gasket arrangement with a perimeter gasket member against the downstream flow face and a side gasket member adjacent to at least a partial extension of a first side panel. The side gasket member includes no portion against second, third, and fourth side panels of the air filter cartridge. The air filter cartridge can be used in a dust collector having a tubesheet and a frame arrangement extending from the tubesheet. The perimeter gasket member seals against the frame arrangement and the side gasket member seals against the tubesheet. ## Claims ### Claim 1 An air filter cartridge comprising: (a) a media pack having upstream and downstream opposite flow faces, first and second opposite sides extending between the upstream and downstream opposite flow faces, and third and fourth opposite sides extending between the upstream and downstream opposite flow faces; the media pack comprises a stack of strips of single facer filter media material, each strip including a fluted media sheet secured to a facing media sheet and oriented with flutes of each fluted sheet extending in a direction between the upstream and downstream flow faces; (b) a first side panel against the first side of the media pack; (c) a second side panel against the second side of the media pack; (d) a third side panel against the third side of the media pack; (e) a fourth side panel against the fourth side of the media pack; and (f) a gasket arrangement including: (i) a perimeter gasket member against the downstream flow face and around a perimeter of the downstream flow face; and (ii) a side gasket member, adjacent to at least a partial extension of the first side panel; the side gasket member including no portion against the second, third, and fourth side panel; (A) the side gasket member extends against the first side panel from the downstream flow face a distance no greater than 40% of an overall length of the first side panel; and (g) a handle secured to the cartridge. ### Claim 2 (depends on 1) An air filter cartridge according to claim 1 wherein the side gasket member is angled relative to the downstream flow face at an angle of 20-80 degrees. ### Claim 3 (depends on 1) An air filter cartridge according to claim 1 wherein the side gasket member includes at least the portion adjacent to the first side panel and an intermediate segment bridging the first side panel and the downstream flow face. ### Claim 4 (depends on 1) An air filter cartridge according to claim 1 wherein the side gasket member includes a segment against the downstream flow face. ### Claim 5 (depends on 1) An air filter cartridge according to claim 1 wherein the side gasket member is angled relative to the downstream flow face at an angle of 30-60 degrees. ### Claim 6 (depends on 1) An air filter cartridge according to claim 1 wherein the side gasket is made of a compressive material having a resistance of 3-5 psi at 25% compression. ### Claim 7 (depends on 1) An air filter cartridge of claim 1 wherein: (a) the side gasket member and perimeter gasket member are adjacent to each other without a gap in between and includes two separate pieces attached or fitted together. ### Claim 8 (depends on 1) An air filter cartridge of claim 1 wherein: (a) the side gasket member and perimeter gasket member are molded into one single unitary piece. ### Claim 9 An air filter cartridge comprising: (a) a filter media pack having upstream and downstream opposite flow faces and first and second opposite sides extending between the upstream and downstream opposite flow faces; (i) the filter media pack comprises a stack of strips of single facer filter media material, each strip including a fluted media sheet secured to a facing media sheet and oriented with flutes of each fluted sheet extending in a direction between the upstream and downstream flow faces; (b) a first side panel against the first side of the media pack; and (c) a gasket arrangement including: (i) a perimeter gasket member against the downstream flow face and around a perimeter of the downstream flow face; and (ii) a side gasket member adjacent to at least a partial extension of the first side panel; the side gasket member being angled relative the downstream flow face at an angle of 20-80 degrees. ### Claim 10 (depends on 9) An air filter cartridge according to claim 9 wherein the upstream flow face and downstream flow face are parallel, flat, and planar. ### Claim 11 (depends on 9) An air filter cartridge according to claim 9 wherein the side gasket member is angled relative to the downstream flow face at an angle of 30-60 degrees. ### Claim 12 (depends on 9) An air filter cartridge according to claim 9 wherein each strip of the media pack is angled relative to a horizontal surface from the upstream flow face to the downstream flow face at an angle of 20-80 degrees. ### Claim 13 (depends on 9) An air filter cartridge of claim 9 wherein: (a) the media pack further includes third and fourth opposite sides extending between the upstream and downstream opposite flow faces; and (b) the air filter cartridge further includes: a second side panel against the second side of the media pack; (ii) a third side panel against the third side of the media pack; and (iii) a fourth side panel against the fourth side of the media pack. ### Claim 14 (depends on 13) An air filter cartridge of claim 13 wherein: (a) the side gasket member includes no portion against the second, third, and fourth side panel. ### Claim 15 (depends on 9) An air filter cartridge of claim 9 wherein: (a) the side gasket member extends against the first side panel from the downstream flow face a distance no greater than 40% of an overall length of the first side panel. ### Claim 16 (depends on 9) An air filter cartridge according to claim 9 wherein the side gasket member includes at least the portion adjacent to the first side panel and an intermediate segment bridging the first side panel and the downstream flow face. ### Claim 17 (depends on 9) An air filter cartridge according to claim 9 wherein the side gasket member includes a segment against the downstream flow face. ### Claim 18 (depends on 9) An air filter cartridge of claim 9 further comprising: (a) a handle (345) secured to a portion of the cartridge. ### Claim 19 (depends on 9) An air filter cartridge of claim 9 wherein the side gasket member comprises polyurethane foam material.