ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,887, issued on June 3, was assigned to Fives Landis Ltd. (Keighley, Great Britain).
"Workpiece holding assembly for a grinding machine and grinding methods" was invented by Matthew Tucker (Bedford, Great Britain), Paul Comley (Stotfold, Great Britain) and Mark Stocker (Northampton, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A workpiece holding assembly comprises a magnetic chuck, and first and second separate sets of workrests for engaging with the outer circumferential surface of an annular workpiece. The workrests are configurable such that when the outer circumferential surface of the workpiece is ground with the chuck rotating i...