ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,855, issued on Sept. 8, was assigned to SACMI FORNI & FILTER S.P.A. (Imola, Italy).

"Method and kiln for the firing of substantially flat base ceramic articles" was invented by Pier Francesco Vaccari (Casalgrande, Italy) and Alberto Toro (Casalgrande, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "Method and kiln for the firing of base ceramic articles (BC) comprising: a firing chamber inside which the base ceramic articles (BC) to be fired are conveyed; at least one burner for burning a combustion mixture to heat the firing chamber and to fire the base ceramic articles (BC); first and second feeding device for feeding, respectively, a fuel mi...