US Patent Issued to HAMILTON SUNDSTRAND on April 21 for "Thrust ring frictional damper" (Illinois Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,233, issued on April 21, was assigned to HAMILTON SUNDSTRAND Corp. (Charlotte, N.C.).

"Thrust ring frictional damper" was invented by Ethan Roberts (Byron, Ill.) and Aaron Cooling (Rockford, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system includes a rotor shaft rotatable about an axis, a disconnect shaft nested at least partially within an interior of the rotor shaft, and a journal shaft selectively rotatably coupled to the disconnect shaft. A vibration damping mechanism is arranged between the rotor shaft and the journal shaft. The vibration damping mechanism includes a thrust journal bearing affixed to the rotor shaft and a thrust wa...