ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,060, issued on March 18.
"Liquid damper" was invented by Jacobus Klaassen (Voorburg, Netherlands), Matthias Lenssen (Hamburg, Germany), Martin Moeskjaer (Struer, Denmark) and Marc Seidel (Osnabruck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid damper for a wind turbine tower includes a damper housing formed from a horizontal lower annulus, a horizontal upper annulus, an essentially cylindrical outer vertical wall and an essentially cylindrical inner vertical wall, wherein the outer diameter of the damper corresponds to the interior diameter of the tower; an operational volume of liquid contained in the damper; and an arrangement ...