ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,579, issued on Dec. 2.
"Concrete mix separating device and method of use" was invented by Oscar Hernandez (Bastrop, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A concrete mix separating device for generating cement slurry from a concrete mix includes a bar, which is insertable between adjacent sections of a concrete chute so that a gap is created between the adjacent sections. The bar is sized so that aggregate of a concrete mix, which passes through the concrete chute, is selectively excluded from passing through the gap. Cement slurry, which is substantially free of aggregate, is generated from the concrete mix and passes through the gap. ...