ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,142, issued on Feb. 24.
"Autoharp keyboard mechanism" was invented by Kenneth K. Ellis (Columbia City, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The Autoharp Keyboard Mechanism is engaged with an autoharp having strings. Octave bars having piano-like keys are slidingly engaged with pins extending from the top surface of the autoharp and are located above the strings. Damping brackets are also slidingly engaged with the pins and are located beneath the octave bars and beneath the strings. Coil springs are arranged around each of pins and are located beneath the octave bars and the damping brackets. Adjustable length spacers are engaged with...