US Patent Issued to THERMO KING on July 28 for "Variable speed compressor control scheme for lubricant control" (Wisconsin Inventor)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,731, issued on July 28, was assigned to THERMO KING LLC (Minneapolis).

"Variable speed compressor control scheme for lubricant control" was invented by Eric S. Mlsna (Cashton, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A transport climate control system includes a controller. When a pulldown operation is scheduled or performed, the controller can incorporate operation in a lubricant recovery mode into the pulldown operation, and operate the transport climate control system to perform the pulldown operation including the operation in the lubricant recovery mode. The lubricant recovery mode can include operation under conditions such as mass ...