ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,464,293, issued on Nov. 4, was assigned to Mayht Holding B.V. (Goleta, Calif.).
"Speaker unit with a speaker frame and two opposing sound producing membranes" was invented by Timothy Ruben Scheek (Rotterdam, Netherlands) and Mattias Jeffrey Scheek (Amsterdam).
According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker unit with a speaker frame and two opposing membranes each being arranged to move up and down along a main speaker axis. Two drive units are present for each membrane, having a driver static part and a driver moving part. A sealing edge suspension is connected to a perimeter of the associated membrane and to the major front surface and major bac...