US 11,772,023 B2
Filter assembly and floor cleaner
Kin-leung Tam, Hong Kong (CN)
Assigned to BISSELL Inc., Grand Rapids, MI (US)
Filed by BISSELL Inc., Grand Rapids, MI (US)
Filed on Apr. 25, 2022, as Appl. No. 17/728,051.
Application 17/728,051 is a division of application No. 17/408,800, filed on Aug. 23, 2021, granted, now 11,337,575.
Prior Publication US 2023/0053356 A1, Feb. 23, 2023
Int. Cl. B01D 46/00 (2022.01); B01D 46/42 (2006.01); G01R 33/07 (2006.01); A47L 11/40 (2006.01); B01D 46/52 (2006.01); B01D 46/10 (2006.01); A47L 11/30 (2006.01); B01D 46/62 (2022.01)
CPC B01D 46/009 (2013.01) [A47L 11/302 (2013.01); A47L 11/403 (2013.01); A47L 11/408 (2013.01); A47L 11/4011 (2013.01); A47L 11/4016 (2013.01); A47L 11/4025 (2013.01); A47L 11/4041 (2013.01); B01D 46/0004 (2013.01); B01D 46/10 (2013.01); B01D 46/4227 (2013.01); B01D 46/521 (2013.01); B01D 46/645 (2022.01); G01R 33/07 (2013.01); B01D 2267/40 (2013.01); B01D 2271/02 (2013.01); B01D 2279/55 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A floor cleaner, comprising:
a housing;
an air flow pathway through the housing and comprising a dirty inlet and a clean outlet;
a working air treatment assembly defining a portion of the air flow pathway;
a suction source defining a portion of the air flow pathway and in fluid communication with the working air treatment assembly;
at least one electrically-powered component;
a filter assembly removably installed on the housing, comprising:
a filter having an intake side and an exhaust side, the filter located in the air flow pathway;
a filter housing comprising a frame having an open area through which air may pass, the filter supported within the frame;
a seal on the filter housing, the seal extending around the exhaust side of the filter; and
a handle projecting from the filter housing; and
a filter detection mechanism comprising:
a permanent magnet disposed on the handle of the filter assembly; and
a Hall Effect sensor positioned to detect the permanent magnet when the filter assembly is correctly installed on the housing;
wherein the filter detection mechanism is configured to allow operation of the at least one electrically-powered component when the permanent magnet is detected by the Hall Effect sensor and to prevent operation of the at least one electrically-powered component when the permanent magnet is not detected by the Hall Effect sensor.