US Patent Issued to Columbia Machine on Feb. 11 for "Apparatus for gas entrainment via nano-bubbles into concrete upstream from a product mold" (Washington, Oregon Inventors)

ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,221,392, issued on Feb. 11, was assigned to Columbia Machine Inc. (Vancouver, Wash.).

"Apparatus for gas entrainment via nano-bubbles into concrete upstream from a product mold" was invented by Richard T. Goode (Vancouver, Wash.), Jason Clark (Portland, Ore.) and Stacy Gildersleeve (Woodland, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for delivering a wet concrete mix to a product mold, where the apparatus comprises a hopper configured to retain a fresh concrete mix, a source of treated water having a concentration of nanobubbles of a gas at least double a natural concentration of nanobubbles of the gas within a natural state of t...