ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,956, issued on Nov. 3, was assigned to MIURA Co. LTD. (Matsuyama Ehime, Japan).
"Gas burner and boiler" was invented by Soji Sumi (Matsuyama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas burner (1) according to one aspect of the present invention includes a fuel supply pipe (10) extending in a predetermined combustion air jet direction and supplied with fuel gas, an air jet port (40) arranged around the fuel supply pipe (10) and jetting combustion air in the combustion air jet direction, and multiple outflow nozzles (70) extending so as not to protrude outward from the fuel supply pipe (10) beyond the air jet port (40) and so as to form...