ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,164, issued on March 25, was assigned to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co. LTD. (Shaoxing, China).
"Check valve and air conditioner having same" was invented by Huahai Jin (Shaoxing, China) and Yongbin Xuan (Shaoxing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A check valve and an air conditioner having the same are provided. The check valve includes a valve body, a valve cover and a valve core. The valve body is provided with a valve cavity and a valve port. The valve core is located in the valve cavity and configured to open or close the valve port. The valve cover is covered on the valve body and configured for limiting the val...