ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,517, issued on March 17.
"Variable-displacement spar buoy apparatus for macroalgae farming" was invented by Clifford A. Goudey (Newburyport, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for farming macroalgae that includes a macroalgae farm and variable displacement spar buoy apparatuses connected to the macroalgae farm. Each of the spar buoy apparatus has a top sealed compartment having a gas and a bottom portion that is open at the bottom. A vent pipe extends from the bottom portion up through the top sealed compartment. The variable displacement spar buoy provides buoyancy by adding a gas to the bottom portion through the ve...