US Patent Issued on Oct. 7 for "Systems and methods of using cascading heat pumps for improvement of coefficient of performance" (Massachusetts Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,909, issued on Oct. 7.

"Systems and methods of using cascading heat pumps for improvement of coefficient of performance" was invented by Mark J. Maynard (Easthampton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system utilizing cascading heat pump circuits (HPCs) is employed to efficiently transfer heat from low temperature reservoirs to high temperature reservoirs. The system of cascading (e.g., multistage) HPCs include at least two HPCs that are in thermal communication. The first HPC uses a first refrigerant and is configured to raise a first cold operating temperature to a first hot operating temperature. The second HPC uses a second r...