ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,486,190, issued on Dec. 2, was assigned to Owens-Brockway Glass Container Inc. (Perrysburg, Ohio).
"Fining molten material using reduced pressure" was invented by Zhongming Wang (Ypsilanti, Mich.) and Udaya Vempati (Perrysburg, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A glass fining system, multi-stage vacuum housing, and method are disclosed. The glass fining system includes a multi-stage vacuum housing comprising a first melt receipt tank configured to receive molten material, where the first melt receipt tank is disposed in a first vacuum chamber; a first refining channel configured to flow the molten material from the first melt receipt ta...