ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,160, issued on Jan. 27, was assigned to PETROLEO BRASILEIRO S.A.-PETROBRAS (Rio de Janeiro, Brazil).
"Boiler burner rigid lance" was invented by Wagner Henrique Saldanha (Betim, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "Generally described, one or more aspects of the present disclosure relate to a rigid lance of a boiler burner device. The rigid lance includes a first tube having a first diameter, a second tube having a second diameter larger than the first diameter, a hexagonal bar connecting the first tube with the second tube, and a sealing gasket positioned between the first tube and the second tube."
The patent was filed on Aug. 17...