ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,441, issued on Feb. 10, was assigned to Huaneng Jiuquan Wind Power Co. Ltd (Gansu, China).
"Fan gearbox oil replacement device and method for using the same" was invented by Haibin Liu (Gansu, China), Manyuan Yu (Gansu, China), Bo Wang (Gansu, China), Chengjin Shi (Gansu, China) and Yanlong Zhao (Gansu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fan gearbox oil replacement device and a method for using the same; the fan gearbox oil replacement device in includes a moving box body, a reversing mechanism, a filtering mechanism and an oil storage mechanism are arranged in the moving box body; the reversing mechanism is provided with an oil ...