US Patent Issued to QINGDAO HAIER DRUM WASHING MACHINE, HAIER SMART HOME on Dec. 23 for "Additive delivery apparatus and washing machine" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,805, issued on Dec. 23, was assigned to QINGDAO HAIER DRUM WASHING MACHINE Co. LTD. (Shandong, China) and HAIER SMART HOME Co. LTD. (Shandong, China).

"Additive delivery apparatus and washing machine" was invented by Tao Huang (Shandong, China), Baozhen Cheng (Shandong, China) and Huacheng Zhang (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A turbulent flow structure is arranged in a water supply waterway and configured to form a vortex water flow, and mixes a delivered additive with inflow water; and an outlet of the water supply waterway is connected with a nozzle. An inlet of the water supply waterway of the additive delivery ap...