LOW TEMPERATURE CABINET FOR KEEPING THERMOLABILE BIOLOGICAL MATERIAL Russian patent published in 1995 - IPC

FIELD: long-time storage of vessels. SUBSTANCE: heat-insulated working chamber 1 provided with cooling unit 2 has compartment 5 with shelves 4 holding vessels 6 with biological materials and temperature sensor 8; its side walls carry containers 7 with heat-accumulating material. Output of sensors 8 are connected in turn with data inputs of threshold unit 11 of alarm and with input of temperature meter 10 through multichannel switch 9 operating in manual or automatic polling mode of sensors 8. Operation is checked by means of temperature meter indicator 22, audio element 23, and light element 24 of alarm system warning about inadmissible temperature on respective shelf. All electric units of cabinet may be supplied with power from storage battery 13 in case of failure of stationary supply which ensures uninterrupted monitoring of temperature conditions on any shelf 4 maintained for long time by thermal accumulator 7. EFFECT: improved probability of biological material use in case of its deterioration due to improper temperature conditions in storage. 5 cl, 2 dwg