US Patent 10905287 Appliance for foaming beverage or foodstuff

An appliance to foam a liquid for consumption, the appliance comprising: a container mounting portion to mount thereto a container to contain said liquid; an agitation system configured to foam said liquid, said system comprising a stator arranged external a mounted container, said stator configured to generate a rotating magnetic field for transmission of torque to rotate a rotary agitator arranged in a mounted container, wherein said stator comprises at a circuit board with electrically conductive portions formed thereon.