ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,404,018, issued on Sept. 2, was assigned to Jaunt Air Mobility (Dallas).

"Mast dampener for a rotorcraft" was invented by Jay W. Carter Jr. (Wichita Falls, Texas), Jeffrey R. Lewis (Wichita Falls, Texas) and M. Keith Robinson (Wichita Falls, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system to prevent or limit resonance in a rotocraft. The system comprises an airframe, a rotor system having a natural frequency and including a rotor and a mast attached to the airframe, and a non-linear spring positioned between the rotor system and the airframe. The rotor system and the airframe are operable to move relative to each other as the rotor system ...