ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,448, issued on Sept. 16.
"Freeze drying plant and method" was invented by Torsten Pachnatz (Erfurt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A freeze drying plant for drying products containing liquid has a vacuum chamber configured to receive the products. A reception device has at least one reception plate onto which the products can be applied. A cooling system has a fluid circuit configured to cool and/or to heat the products by a cooling fluid conducted in the fluid circuit. The reception plate has at least one closed fluid space that is connected to the fluid circuit and that cooling fluid flows through. At least one sound gener...