# US 10,307,703 B1 · Air filter housing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,703 B1 - Document ID: US10307703B1 - Status: Granted - Kind: B1 - Application number: 15/955,937 - Filed: 2018-04-18 - Granted: 2019-06-04 - Earliest claimed: 2018-04-18 - Applicants: Daniel M. Dearden - Inventors: Daniel M. Dearden - Web page: https://patentgrep.com/patent/US10307703B1 ## CPC - B01D 46/121: V-type arrangements - B01D 46/0004: {Details of removable closures, lids, caps or filter heads} - B01D 46/58: connected in parallel - B01D 2265/028: Snap, latch or clip connecting means - 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 An air filter housing includes an air inlet opening, an air outlet opening, and at least four filter bays each of which is configured to receive and hold a filter. The at least four filter bays form a V shape in the air filter housing and each side of the V shape includes at least two of the at least four filter bays. The air filter housing can be used in an air filtration system such as a residential HVAC system to achieve a MERV 16 filtration rating. ## Claims ### Claim 1 An air filter housing comprising: a first side having an air inlet opening; a second side having an air outlet opening, the air inlet opening and the air outlet opening being in fluid communication with each other; a front side extending between the first side and the second side; and at least four filter bays each of which is configured to receive and hold a separate filter through a filter bay opening in the front side; wherein the filter bay openings form a V shape in the front side of the air filter housing; and wherein at least two of the at least four filter bays are accessible through each leg of the V shape formed by the filter bay openings in the front side of the air filter housing. ### Claim 2 (depends on 1) The air filter housing of claim 1 wherein the at least four filter bays are arranged in a V shape in the air filter housing. ### Claim 3 (depends on 2) The air filter housing of claim 2 wherein the air filter housing includes only one V shaped arrangement of filter bays. ### Claim 4 (depends on 1) The air filter housing of claim 1 wherein the air filter housing includes only one V shaped arrangement of filter bay openings. ### Claim 5 (depends on 1) The air filter housing of claim 1 comprising filter support frames configured to hold the filters in the at least four filter bays. ### Claim 6 (depends on 5) The air filter housing of claim 5 wherein each of the filter support frames includes a support base configured to support a bottom edge of the filters. ### Claim 7 (depends on 6) The air filter housing of claim 6 wherein the at least four filter bays are arranged in a V shape in the air filter housing, and wherein the support base of one filter support frame on each leg of the V shape formed by the at least four filter bays supports the bottom edge of at least one of the filters and holds a top edge of another one of the filters. ### Claim 8 (depends on 1) The air filter housing of claim 1 comprising a door movable between a closed position where the door covers the filter bay openings and an open position where the door does not cover the filter bay openings. ### Claim 9 (depends on 1) The air filter housing of claim 1 wherein the air filter housing has a rectangular prism shape. ### Claim 10 (depends on 9) The air filter housing of claim 9 wherein the air filter housing has a height of approximately 30 in to approximately 72 in, a width of approximately 12 in to approximately 36 in, and a depth of approximately 4 in to approximately 24 in. ### Claim 11 (depends on 1) An air filtration system comprising: the air filter housing of claim 1; and a filter positioned in each of the at least four filter bays. ### Claim 12 (depends on 11) The air filtration system of claim 11 wherein the air filtration system has a MERV rating of at least 16. ### Claim 13 (depends on 11) The air filtration system of claim 11 wherein the filters are pleated filters. ### Claim 14 (depends on 11) The air filtration system of claim 11 wherein a total filter surface area of all the filters is at least 100 ft2. ### Claim 15 (depends on 11) The air filtration system of claim 11 wherein the air filtration system has a MERV rating of at least 16 and the air flow rate (AF) through the air filter housing is at least the value given by the following equation when a pressure drop (PD) is 0.14 wc to 0.33 wc and A is at least 275: AF (cfm)=3093*PD+A. ### Claim 16 (depends on 11) The air filtration system of claim 11 wherein the air filtration system has a MERV rating of at least 16 and the pressure drop (PD) in the air filter housing is no more than the value given by the following equation when an air flow rate (AF) is 1,000 cfm to 1,600 cfm and B is no more than 0.126: PD (wc)=0.00032*AF+B. ### Claim 17 (depends on 11) The air filtration system of claim 11 wherein the filters are approximately 14 in to approximately 22 in long, approximately 19 in to approximately 29 in wide, and no more than 2 in thick. ### Claim 18 (depends on 11) The air filtration system of claim 11 wherein the filters are approximately 14.5 in or approximately 19.5 in long, approximately 24.5 in wide, and approximately 2 in thick. ### Claim 19 (depends on 1) An air filtration system comprising: an air handler; supply ductwork coupled to the air handler; and return ductwork coupled to the air handler; wherein the air filter housing of claim 1 forms at least part of the return ductwork. ### Claim 20 (depends on 19) The air filtration system of claim 19 wherein the air filter housing is positioned upright in the return ductwork and the air inlet opening is at the top of the air filter housing and the air outlet opening is at the bottom of the air filter housing. ### Claim 21 (depends on 1) The air filter housing of claim 1 wherein each of the at least four filter bays is independently accessible through the filter bay openings in the front side of the air filter housing. ### Claim 22 (depends on 1) The air filter housing of claim 1 wherein the front side includes a front sidewall extending between the first side and the second side, wherein the filter bay openings form a V shape in the front sidewall of the air filter housing. ### Claim 23 (depends on 1) The air filter housing of claim 1 comprising a rear side, wherein each of the at least four filter bays extends lengthwise from the front side of the air filter housing to the rear side of the air filter housing.