US 11,865,484 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 Feb. 7, 2022, as Appl. No. 17/666,496.
Application 17/666,496 is a continuation of application No. 16/579,645, filed on Sep. 23, 2019, granted, now 11,241,647.
Application 16/579,645 is a continuation of application No. 15/288,473, filed on Oct. 7, 2016, granted, now 10,512,872.
Application 15/288,473 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 2022/0152542 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 46/00 (2022.01); B01D 46/10 (2006.01); B01D 39/08 (2006.01); B01D 41/04 (2006.01); F24F 8/10 (2021.01); F24F 8/192 (2021.01); B01D 46/66 (2022.01); B01D 46/52 (2006.01); 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)] 20 Claims
OG exemplary drawing
 
1. An air filter to clean air within residential spaces, comprising:
a first media layer;
a second media layer coupled with the first media layer; and
a frame for supporting the first and second filter media layers within an HVAC system and further wherein the frame orients for orienting the first media layer and the second media layer within a residential HVAC system and further wherein the frame is disposed along a perimeter of the first and second media layers; and
a plurality of corner sections configured to fit within the HVAC system to receive the frame of the air filter.