Process and apparatus for freezing living cells

Details Process and apparatus for freezing living cells Process and apparatus for freezing living cells

1979-06-18

1981-12-08

Davis, Albert W.

Heat exchange

With alarm, indicator, signal, register, recorder, test or...

Remotely controlled inspection means

165 30, 165 61, 62 62, 62 78, 62514R, 236 15BB, 435290, F25B 1300

Patent

active

043042937

ABSTRACT:
The process for freezing cell suspensions by locating the suspension in a freezing chamber and simultaneously monitoring the temperature of the suspended cells and of the chamber. The cooling of the chamber is regulated at predetermined rates in response to given temperature levels of the sample. The cooling chamber includes a fan, a heater, and a source of refrigerant. The process includes the steps of selectively decreasing and increasing the temperature of the freezing chamber responsive to predetermined temperature points on the freezing curve of the cell sample.

REFERENCES:
patent: 3056274 (1962-10-01), Pouchert
patent: 3080725 (1963-03-01), Cowley et al.
patent: 3818977 (1974-06-01), Lohr
patent: 3875754 (1975-04-01), Faust et al.
patent: 4030314 (1977-06-01), Strehler et al.
patent: 4107937 (1978-08-01), Chmiel
patent: 4117881 (1978-10-01), Williams et al.

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