ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,947, issued on June 10, was assigned to QINGDAO HAIER WASHING MACHINE Co. LTD. (Shandong, China) and HAIER SMART HOME Co. LTD. (Shandong, China).
"Additive feeding device and washing machine" was invented by Tao Huang (Shandong, China), Baozhen Cheng (Shandong, China) and Bingheng Zhou (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An additive feeding device includes a water supply pipeline; a liquid storage box containing an additive; and a suction structure which includes a connecting pipeline which is at least partially connected with the water supply pipeline in parallel, the connecting pipeline is provided with a power unit for...