ALEXANDRIA, Va., March 17 -- United States Patent no. 12,577,934, issued on March 17, was assigned to HAWE Hydraulik SE (Aschheim, Germany).

"Hydraulic device for a pitch system, a pitch system and wind turbine" was invented by Jesper Berg Hansen (Albertslund, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic device for a pitch system of a wind turbine includes an air separation device which includes a fluid collector having an air accumulation portion, at least one fluid inlet and a fluid outlet portion, wherein a fluid emulsion of air and hydraulic fluid can be introduced into the fluid collector through the at least one fluid inlet. The fluid collector is labyrinth-shaped so that rotation...