ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,283, issued on July 29, was assigned to Heatcraft Refrigeration Products LLC (Stone Mountain, Ga.).
"Hot gas defrost using medium temperature discharge gas" was invented by Shitong Zha (Snellville, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigeration system includes evaporators, one or more medium temperature compressors, and a three-way valve positioned downstream from the one or more medium temperature compressors. The three-way valve receives the compressed refrigerant from the medium temperature compressors and directs flow of the received compressed refrigerant to (i) a gas cooler and/or (ii) one or more of the evaporators based o...