ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,555, issued on July 29, was assigned to SAS GLOBAL Corp. (Warren, Mich.).

"Enhanced retractable flow discharge extension" was invented by David Allen Billings Jr. (Garden City, Mich.), Justin James-Paul Bennett (Novi, Mich.) and Kevin Raymond Kleist (Macomb, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An enhanced retractable flow discharge extension is configured for use in a coal pulverizer having a classifier system including a feedpipe to deliver from above raw coal to a pulverizing structure and a classifier cone positioned around the feedpipe to collect oversized coal for the pulverizing structure. The enhanced retractable flow dischar...