US Patent Issued to Copeland on Sept. 8 for "Open air-cycle ventilating heat pump" (Ohio Inventor)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,873, issued on Sept. 8, was assigned to Copeland LP (Sidney, Ohio).

"Open air-cycle ventilating heat pump" was invented by Andrew M. Welch (Franklin, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A climate-control system may include first and second turbomachines, first and second heat exchangers, and a fan. The first turbomachine may be fluidly connected with a source of outdoor air. The first and second turbomachines are operable in a compressor mode and in an expander mode. The turbomachines compress air in the compressor mode and expand air in the expander mode. The first heat exchanger may receive air from the first turbomachine. The seco...