US Patent Issued to Evapco on July 15 for "Low charge packaged ammonia refrigeration system with evaporative condenser" (Maryland Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,828, issued on July 15, was assigned to Evapco Inc. (Taneytown, Md.).

"Low charge packaged ammonia refrigeration system with evaporative condenser" was invented by Kurt L. Liebendorfer (Taneytown, Md.), Gregory S. Derosier (Eldersburg, Md.), Trevor Hegg (Westminster, Md.), Sarah L. Ferrari (Mount Airy, Md.), Don Hamilton (Taneytown, Md.), Nicholas Hesser (Taneytown, Md.) and Kenneth Wright (Taneytown, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related ...