US Patent Issued to Magotteaux International on June 16 for "Forged grinding balls for semi-autogenous grinder" (Belgian Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,493, issued on June 16, was assigned to Magotteaux International S.A. (Vaux-sous-Chevremont, Belgium).

"Forged grinding balls for semi-autogenous grinder" was invented by Marc Babineau (Beaufays, Belgium) and Michel Bonnevie (Bovesse, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "An improved grinding ball may include a carbon content of 1.1 to 1.4 wt %, a chromium content of 10 to 14 wt %, a manganese content of 0.8 to 1.5 wt %, a silicon content of 0.6 to 1 wt %, a molybdenum content of less than 1 wt %, a nickel content of less than 1 wt %, any impurities with a total content of less than 0.5 wt %, the balance to obtain 100% being iron. T...