ALEXANDRIA, Va., June 16 -- United States Patent no. 12,303,093, issued on May 20, was assigned to Electrolux Appliances Aktiebolag (Stockholm).
"Vacuum cleaner nozzle, and vacuum cleaner" was invented by Dennis Han Yuguang (Stockholm) and Gu Rain (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum cleaner nozzle having a nozzle body and a brush roll configured to rotate relative to the nozzle body. The nozzle comprises a locking assembly having a locked state, in which the locking assembly locks the brush roll to the nozzle body, and an unlocked state, in which the locking assembly unlocks the brush roll from the nozzle body. The nozzle comprises a button, wherein the locking assembly is confi...