ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,562, issued on Sept. 8.
"Impedance variator for a wind instrument" was invented by Andre Gay (Marseilles, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An impedance variator for limiting or suppressing the parasitic harmonics of a wind musical instrument, the impedance variator including at least one permanent magnet, the impedance variator including a brass tube intended to surround a substantially tubular or cylindrical portion of the wind instrument and the impedance variator including a manner for fastening the tube on the portion of the wind instrument."
The patent was filed on Sept. 13, 2022, under Application No. 18/692,011.
*For fu...