US 12,070,712 B2
Collapsible air filter assemblies
Joey Fralin, Raleigh, NC (US); Fredrik Perman, Raleigh, NC (US); Jeffrey Silver Taggart, Raleigh, NC (US); Kevin James Barry, Raleigh, NC (US); Aly Khalifa, Raleigh, NC (US); and Thaddeus Worth Tarkington, Raleigh, NC (US)
Assigned to FILTEREASY, LLC, Raleigh, NC (US)
Filed by FILTEREASY, LLC, Raleigh, NC (US)
Filed on Oct. 8, 2021, as Appl. No. 17/497,468.
Application 17/497,468 is a continuation of application No. PCT/US2020/027476, filed on Apr. 9, 2020.
Claims priority of provisional application 62/831,263, filed on Apr. 9, 2019.
Prior Publication US 2022/0023791 A1, Jan. 27, 2022
Int. Cl. B01D 46/10 (2006.01); B01D 46/00 (2022.01); B01D 46/52 (2006.01)
CPC B01D 46/10 (2013.01) [B01D 46/0016 (2013.01); B01D 46/521 (2013.01); B01D 2275/203 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A collapsible air filter assembly for a heating and ventilation air conditioner (HVAC) system, the filter assembly comprising:
a filter element; and
a frame engaging and supporting the filter element, wherein the frame includes at least two edges, each edge including a respective spring element comprising a bi-convex tape spring assembly having a first profiled spring member, a second profiled spring member, and an internal channel therebetween, wherein the first profiled spring member comprises a concave side facing a concave side of the second profiled spring member,
wherein each spring element is configured to be moveable between an open state and a bent state, and
wherein the frame is positioned within an HVAC return to secure the filter element within an airflow of the HVAC system.