ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,421, issued on April 22, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).
"Molten metal filter device for casting vehicle components" was invented by Thomas J. Boone (Ann Arbor, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A molten aluminum metal filter system having a holding tank operable to receive a molten metal, a filter device to filter the molten metal, a pump operable to continuously recirculate the molten metal through the filter device, and a casting device to receive a filtered molten metal from the filter device. The filter device includes a chamber, an inlet channel operable to convey the molten metal into the chamb...