US Patent Issued to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT on July 7 for "Four-way valve and air conditioning system provided with same" (Chinese Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,515, issued on July 7, was assigned to ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co. LTD. (Shaoxing, China).

"Four-way valve and air conditioning system provided with same" was invented by Zhongbo Feng (Shaoxing, China), Yongbin Xuan (Shaoxing, China) and Zhehang Chen (Shaoxing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A four-way valve and an air conditioning system provided with same are provided. The four-way valve includes a valve body, a piston and a sealing member. The valve body is provided with a valve cavity. The piston is movably disposed in the valve cavity. The sealing member is disposed on the piston and at least a part of the sea...