ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,319, issued on May 27, was assigned to BMIL Technologies LLC (Morehead City, N.C.).
"Low GWP cascade refrigeration system" was invented by Thomas J. Backman (Morehead City, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigeration system having a low stage and a high stage circuit. Each stage having a compressor, an evaporator or a condenser. The low stage includes a low stage refrigerant comprising R744. The high stage includes a high stage refrigerant having a GWP less than 500. The system further includes a heat exchanger configured to transfer heat from the low stage refrigerant to the high stage refrigerant allowing the circuits to pr...