US2019120522A1PendingUtilityA1
System for lowering and raising a hvac air return filter
Est. expiryOct 22, 2037(~11.3 yrs left)· nominal 20-yr term from priority
Inventors:Chris Green
F24F 13/28F24F 3/1603F24F 8/10
44
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
A system for lowering an air return filter comprising: a reel; a cable system attached to the reel; and an air return filter engaged at the end of the cable system, where the reel and the cable system enable a vertical adjustment of the air return filter. Preferably, the air return filter may seal a return air duct, where the air return filter is with a frame opening of a ceiling. Further, the air return filter may include a removable filter and is connected to a HVAC system.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A system for lowering an air return filter comprising:
a. a reel; b. a cable system attached to the reel; and c. a motor where engaged with the reel; and d. an air return filter engaged at the end of the cable system, where the reel and the cable system enable a vertical adjustment of the air return filter, wherein the motor rotates the reel to move the air return filter into and away from a return air duct.
2 . The system according to claim 1 , where the air return filter is with a frame opening of a ceiling.
3 . The system according to claim 1 , where the air return filter includes a removable filter.
4 . The system according to claim 1 , where the air return filter is connected to a HVAC system.Cited by (0)
No later patents cite this yet.
References (0)
No backward citations on record.