ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,999, issued on July 14, was assigned to ACKERSTEIN INDUSTRIES LTD. (Herzlia, Israel).
"System and method for coloring top surface of claddings and concrete paving stones" was invented by Gideon Argaman (Herzlia, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for spraying fluid phase color is integrated into a cladding manufacturing machine and synchronized with the manufacturing process. The apparatus is attached to the basket through which the concrete of the claddings is poured into a mould; color spraying initiates after completing the concrete filling phase of the manufacturing of the cladding and the basket retreats to its s...