DEVICE FOR CRYOGENIC FREEZING OF BIOLOGICAL OBJECTS Russian patent published in 1994 - IPC

FIELD: refrigerating engineering. SUBSTANCE: device has heat-insulated chamber which is partially filled with cryogenic fluid; chamber is cylindrical in form and is provided with hollow axle secured vertically on the bottom along geometric vertical axis of the chamber. Mechnaism for motion of biological objects prepared for freezing has hub mounted on the axle and brought in communication by means of parallel link lever mechanisms with dishes designed for receiving the objects. Lower lever of each mechanism is provided with roller supported by template which is just cylindrical shell of varying height over circumference mounted concentrically on the bottom of the chamber; receiving device is made in form of belt conveyer enclosed in casing; belt of the conveyer is provided with ridges whose surfaces form closed chambers together with surface of the belt and casing for placing the biological objects. EFFECT: enhanced efficiency. 3 cl, 4 dwg