ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,346, issued on Sept. 16.
"Variable density flywheel assembly" was invented by Enrique Alberto Quispe Ramon (Lima, Peru).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flywheel assembly having a variable density dependent at least partially upon an amount of liquid contained therein includes a housing having an at least partially hollow interior. A shaft is connected to the housing and rotational therewith and is operatively associated with both a liquid input and a vent assembly, each connected in fluid communication with the hollow interior. The liquid input is operative to direct liquid into and out of the hollow interior and the vent assembly i...