US Patent 11236943 Freeze-drying apparatus with a loading and unloading device

A freeze-drying apparatus (1) includes an arrangement of individual product platforms (19) that are supported vertically in a frame (20) in a drying chamber, in which each platform is able to be moved to a shift level, in which lateral guides (20, 21) designed to support a carriage (15) are arranged with a fixed height position, and which cooperate with the guides (16, 18) of a loading and unloading device (49). All product platforms (19) in the drying chamber can be loaded by repeating this operation cyclically. The freeze-drying apparatus (1) comprises an electrical drive unit powered by a battery (44).