ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,782, issued on June 3.
"Electrodynamic loudspeaker with easily detachable moving part module" was invented by Andrei Vladimirovich Khromov (Tolyatti, Russia), Eduard Rafaelevich Safin (Kazan, Russia) and Liliia Sergeevna Safina (Kazan, Russia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electrodynamic loudspeaker is provided, which comprises detachable and supporting frames. A magnetic system comprising a permanent magnet and bottom and top magnetic conductors is attached to the supporting frame. A suspension and a centering washer are attached to the detachable frame, and fastened to a cone, a dust cap, and a voice coil. The coil has a winding ...