US 11,992,798 B2
HVAC home air filter
Steve Williams, Cherry Valley, CA (US); and Jere James Wall, Helendale, CA (US)
Assigned to K&N Engineering, Inc., Riverside, CA (US)
Filed by K&N Engineering, Inc., Riverside, CA (US)
Filed on Jun. 3, 2022, as Appl. No. 17/831,937.
Application 17/831,937 is a continuation of application No. 16/839,874, filed on Apr. 3, 2020, granted, now 11,351,495.
Application 16/839,874 is a continuation of application No. 15/207,025, filed on Jul. 11, 2016, granted, now 10,632,411.
Application 15/207,025 is a continuation in part of application No. 14/974,092, filed on Dec. 18, 2015, granted, now 10,434,466.
Application 14/974,092 is a continuation in part of application No. 14/668,772, filed on Mar. 25, 2015, granted, now 9,701,178.
Prior Publication US 2022/0370943 A1, Nov. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 46/00 (2022.01); B01D 39/08 (2006.01); B01D 41/04 (2006.01); B01D 46/04 (2006.01); B01D 46/10 (2006.01); B01D 46/52 (2006.01); B01D 46/66 (2022.01); F24F 8/10 (2021.01); F24F 8/192 (2021.01); F24F 8/108 (2021.01)
CPC B01D 46/10 (2013.01) [B01D 39/083 (2013.01); B01D 39/086 (2013.01); B01D 41/04 (2013.01); B01D 46/0005 (2013.01); B01D 46/0028 (2013.01); B01D 46/0032 (2013.01); B01D 46/0035 (2013.01); B01D 46/0038 (2013.01); B01D 46/0097 (2013.01); B01D 46/521 (2013.01); B01D 46/66 (2022.01); F24F 8/10 (2021.01); F24F 8/192 (2021.01); B01D 2279/50 (2013.01); F24F 8/108 (2021.01)] 7 Claims
OG exemplary drawing
 
1. A method for air filter to clean air within residential spaces, comprising:
forming a composite filter medium comprising a first media layer coupled with a second media layer; and
disposing a frame for supporting the filter medium within the HVAC system, the frame including a plurality of elongate sections and a plurality of corner sections each of the plurality of elongate sections and the plurality of corner sections comprise a U-shaped cross-sectional shape configured to slidably receive an outer edge of the filter medium wherein the frame is disposed along a perimeter of the composite filter medium for orienting the air filter within a residential HVAC wherein the plurality of corner sections are configured to receive an end of an elongate section.