ALEXANDRIA, Va., April 7 -- United States Patent no. 12,594,446, issued on April 7.
"Compressed air foam system with vortex manifold" was invented by David G. Mahrt (Redding, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fire suppression system may include a tank and a manifold that may be inside or outside the tank. The tank, when charged, holds a liquid and a gas. The manifold has an inlet coupled to receive a liquid flow from the tank and inlets configured to receive gas flows. The gas flows may be from an upper portion of the liquid tank. An expansion chamber in the manifold receives the liquid flow and the gas flows, which create a liquid-gas vortex or circulation around the expansion chamber ...