ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,453, issued on March 24, was assigned to FEDERAL-MOGUL NURNBERG GMBH (Nuremberg, Germany).
"Steel piston for an internal combustion engine" was invented by Ralf Meske (Schwabach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A steel piston (10) for an internal combustion engine includes a cooling cavity (20) extending in a rotationally symmetrical manner about the piston axis and at least three annular grooves (12, 14, 16), wherein the third annular groove (16), as viewed from the piston crown (18), has a greater depth (T3) than the depth (T2) of a second annular groove (14)."
The patent was filed on July 6, 2022, under Application No. 18...