ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,348, issued on June 17, was assigned to Dyson Technology Ltd. (Malmesbury, Great Britain).

"Cleaner head for a vacuum cleaning appliance" was invented by Aaron Yii How Teo (Swindon, Great Britain) and Stuart Lloyd Genn (Swindon, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaner head for a vacuum cleaning appliance includes a housing which defines a suction chamber. The suction chamber has a suction inlet through which air enters the suction chamber, and a suction port through which air exits the suction chamber. The cleaner head includes a plurality of casters for supporting the cleaner head. Each caster is rotatable relative to...