US 12,134,064 B2
Self-cleaning air filtration apparatus and method
Eric L. Ehrenberg, Jacksonville, FL (US); and James G. Moredock, Saint Augustine, FL (US)
Assigned to THE SY-KLONE COMPANY, LLC, Jacksonville, FL (US)
Filed by THE SY-KLONE COMPANY, LLC, Jacksonville, FL (US)
Filed on Jun. 24, 2021, as Appl. No. 17/356,973.
Prior Publication US 2022/0410058 A1, Dec. 29, 2022
Int. Cl. B01D 45/16 (2006.01); B01D 46/00 (2022.01); B01D 46/24 (2006.01); B01D 46/42 (2006.01); B01D 46/48 (2006.01); B01D 46/62 (2022.01); B01D 50/20 (2022.01); F02M 35/02 (2006.01); F02M 35/024 (2006.01)
CPC B01D 50/20 (2022.01) [B01D 45/16 (2013.01); B01D 46/0043 (2013.01); B01D 46/009 (2013.01); B01D 46/2403 (2013.01); B01D 46/4227 (2013.01); B01D 46/4245 (2013.01); B01D 46/48 (2013.01); B01D 46/62 (2022.01); B01D 2265/024 (2013.01); B01D 2271/022 (2013.01); B01D 2273/30 (2013.01); B01D 2279/60 (2013.01); F02M 35/0201 (2013.01); F02M 35/024 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An air filtration apparatus comprising:
an airflow powerhead assembly including a motor-driven fan assembly and a vane assembly, the airflow powerhead assembly defining a dirty air inlet at which debris-laden air is drawn into the air filtration apparatus using the fan assembly;
a filter assembly including filter media, the filter assembly being configured to remove debris from the debris-laden air; and
a separator chamber housing inside of which the filter assembly is disposed, wherein
the airflow powerhead assembly is disposed on a first axial side of the separator chamber housing with respect to a longitudinal axis of the air filtration apparatus,
the separator chamber housing has a chamber inlet at the first axial side and a clean air outlet at a second axial side of the separator chamber housing opposite the first axial side,
the filter assembly has a first axial end adjacent the chamber inlet and a second axial end adjacent the clean air outlet,
the separator chamber housing includes at least one debris ejection slot extension configured to eject the debris from an inner space of the separator chamber housing to a surrounding environment,
the filter assembly includes a debris catch tray disposed at the second axial end, the debris catch tray having a debris ejection slot radially aligned with and communicating with the at least one debris ejection slot extension for ejecting the debris radially from the inner space of the separator chamber housing to the surrounding environment, and
the debris ejection slot is positioned radially inward of the debris ejection slot extension and is formed in part by a first wall extending away from an outer circumferential surface of the debris catch tray.