ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,636, issued on March 11.
"Torsional vibration damper" was invented by Michael Steidl (Berlin), Mandy Streifler (Berlin) and Stephan Bohmeyer (Hoppegarten, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A torsional vibration damper or torsional vibration absorber has a rotating system with: a primary mass, which is arranged on a rotatable shaft, for example on a crankshaft of an engine, in particular of an internal combustion engine, and preferably can be fastened for conjoint rotation; a secondary mass, which is movable relative to the primary mass; and an assembly for vibration damping and/or vibration absorption of the relative movement b...