DEVICE FOR STORAGE OF BIOLOGICAL OBJECTS Russian patent published in 1999 - IPC

FIELD: food-processing industry, bioengineering, medicine and scientific laboratories where biological objects are stored in vacuum and at low temperatures. SUBSTANCE: device includes two sleeve made from vacuum-tight material and mounted concentrically with vacuum powder insulation placed between them. Clearance between sleeves is closed with spacer ring at the top. Cover is provided with pipe union for connecting the vacuum pump. Pipe union is provided with check valve. Spacer ring is provided with additional check valve. It is communicated with heat insulation, with through pipe union and with cavity used for placing the biological objects in inner sleeve. Perforated sleeve blanked off on one side may be secured on spacer ring. Additional check valve may be fitted in this sleeve with filter arranged between them. EFFECT: enhanced efficiency and reliability. 2 cl, 3 dwg