ALEXANDRIA, Va., May 26 -- United States Patent no. 12,635,707, issued on May 26.
"System and method for automatically cleaning and washing ice cream or yogurt machine" was invented by Lingyu Dong (Temple City, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for automatically cleaning and washing an ice cream machines includes a liquid container for storing raw materials; a freezing cylinder connected with the liquid container through a cleaning pathway; a water tank for storing rinse water to rinse the freezing cylinder and the cleaning pathway; a detergent tank for storing detergents to clean and wash the freezing cylinder and the cleaning pathway; a pump arranged on the cleaning pathway to ...