ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,077, issued on May 20.
"Apparatus and method for the measurement of dissolved and entrained gas phase in a liquid" was invented by Steven John Dougherty (Eagle, Idaho).
According to the abstract* released by the U.S. Patent & Trademark Office: "Piston and cylinder apparatus for determining dissolved and entrained gas content of a liquid comprising: two conterminal and axially-aligned cylinders of different diameters; a first piston contained in the larger cylinder and a second piston of diameter less than the smaller cylinder axially placed within the first piston; movement of first piston and closure of isolation valves to isolate liquid sample in the smaller cylinder; extension...