ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,633, issued on Dec. 16, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Pump controller for a sand casting system" was invented by Andrew Clay Bobel (Troy, Mich.), John Patrick Spicer (Plymouth, Mich.), Debejyo Chakraborty (Novi, Mich.), Ryan Curtis Sekol (Grosse Pointe Woods, Mich.), Jorge F. Arinez (Rochester Hills, Mich.), Jeffrey A. Abell (Rochester Hills, Mich.), David C. Gillengerten (Defiance, Ohio), Qigui Wang (Rochester Hills, Mich.) and Mary S. Boyd (Defiance, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling a pump motor associated with a component molding system includes applying a selected acti...