US Patent Issued to SANY AUTMOBILE MANUFACTURING on May 5 for "Oil drain valve, energy accumulation device, hydraulic system and working machine" (Chinese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,423, issued on May 5, was assigned to SANY AUTMOBILE MANUFACTURING Co. LTD (Changsha, China).

"Oil drain valve, energy accumulation device, hydraulic system and working machine" was invented by Bin Luo (Changsha, China), Guangyu Su (Changsha, China) and Fengwei Wang (Changsha, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an oil drain valve, an energy accumulation device, a hydraulic system and a working machine. The oil drain valve includes a valve body, a valve core and an elastic element. The valve body is provided with a first oil port and a second oil port, the valve core is communicated with the first oil port and the second...