US 12,329,348 B2
Cleaner head for a vacuum cleaning appliance
Aaron Yii How Teo, Swindon (GB); and Stuart Lloyd Genn, Swindon (GB)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Appl. No. 17/761,122
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Sep. 28, 2020, PCT No. PCT/GB2020/052342
§ 371(c)(1), (2) Date Mar. 16, 2022,
PCT Pub. No. WO2021/064355, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 1914228.0 (GB), filed on Oct. 2, 2019.
Prior Publication US 2022/0400915 A1, Dec. 22, 2022
Int. Cl. A47L 9/04 (2006.01); A47L 9/00 (2006.01)
CPC A47L 9/0477 (2013.01) [A47L 9/009 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cleaner head for a vacuum cleaning appliance, the cleaner head comprising:
a housing defining a suction chamber, the suction chamber having a suction inlet and a suction port, the suction inlet extending lengthwise across the suction chamber;
a plurality of wheels for supporting the cleaner head, each wheel being freely rotatable relative to the housing about a first axis which is perpendicular to the suction inlet; and
a plurality of guide members for guiding into the suction chamber debris entrained within air drawn towards the suction inlet, each guide member being arranged to rotate with a respective wheel about the first axis.