ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,609, issued on July 7, was assigned to Trane Technologies Life Sciences LLC (Davidson, N.C.).
"Compressor control band process for variable cascade refrigeration system" was invented by Thomas A. Schoeppner (Marietta, Ohio), Alex Roberts (Parkersburg, W.va.) and Trace A. Lydick (Athens, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for controlling compressors in a cascade vapor compression system. The process may include controlling the operation of a first compressor based on a constant band control, and controlling the operation of a second compressor based on a proportional band control. Controlling the first compresso...