ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,667, issued on Nov. 11, was assigned to CARRIER Corp. (Palm Beach Gardens, Fla.).

"Orifice set and chiller system having it" was invented by Yang Yu (Shanghai), Lihui Yang (Shanghai), Haiping Ding (Shanghai), Qunyi Ma (Shanghai), Rui Ma (Shanghai) and Lei Yu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A throttling device, including a tank for accommodating liquid refrigerant, with an orifice plate arranged at an outlet of the tank; a floating ball capable of floating on a liquid surface of the refrigerant; a pivot rod pivotally fixed on the tank through a pivot shaft; a connecting rod, with one end thereof fixedly connected with the flo...