US Patent Issued to SENSONIC DESIGN IRELAND on June 30 for "Hybrid sound radiation device for vibrating a heavy-weight rigid plate at audio frequencies" (Hungarian Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,947, issued on June 30, was assigned to SENSONIC DESIGN IRELAND Ltd. (Dublin).

"Hybrid sound radiation device for vibrating a heavy-weight rigid plate at audio frequencies" was invented by David Vilmos Javori (Budapest, Hungary) and Sandor Szabo (Budapest, Hungary).

According to the abstract* released by the U.S. Patent & Trademark Office: "The hybrid sound radiation device according to the invention is used for vibrating a heavy-weight rigid plate at audio frequencies. The device comprises two voice coils arranged concentrically, the external voice coil being coupled to a fluid reservoir comprising a three-fluid medium having a substantially constant viscosity as a function of f...