ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,765, issued on Feb. 3, was assigned to TYCO FIRE & SECURITY GMBH (Neuhausen am Rheinfall, Switzerland).
"Free cooling operation of a chiller" was invented by Cameron S. Nelson (Glen Rock, Pa.), William L. Kopko (Jacobus, Pa.) and David A. Bradshaw (Timonium, Md.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system (10) includes a vapor compression system (14) having an evaporator (38), a condenser (34), and a compressor (32). The compressor (34) is configured to guide a refrigerant therethrough in a normal operating mode of the vapor compression system (14) and in a free cooling...