ALEXANDRIA, Va., July 30 -- United States Patent no. 12,374,311, issued on July 29.
"Vibrato device and related methods" was invented by David H. Jackson (Dahlonega, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an improved vibrato device. The typical components of the disclosed device include, but are not limited to, a dual spring-loaded lever arm 10. The lever arm 10 is intended to sit separate and away from the instrument's strings 70 to allow for the user to manipulate the instrument's vibrato while playing by manually moving the lever arm 10 closer to or farther from the instrument. The lever arm 10 connects to the dual spring system 15; the dual spring system 15 houses the vibrato dev...