Droplet exploding and freezing apparatus and method

Details Droplet exploding and freezing apparatus and method Droplet exploding and freezing apparatus and method

1981-04-28

1982-05-18

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 5, 34 92, F26B 334, F26B 506, F26B 1330

Patent

active

043297870

ABSTRACT:
Disclosed is an apparatus and method for freezing and preserving in a viable state microorganisms wherein droplets are formed from an aqueous solution having suspended therein the microorganisms, the droplets are exploded into a plurality of smaller droplets by applying an electrical force which counteracts the surface tension of the droplets, and the microorganisms, with a substantial portion of the solution removed therefrom, are frozen in a moving bath of liquid refrigerant. The frozen droplets are thawed or alternatively dried by sublimation.

REFERENCES:
patent: 3011543 (1961-12-01), McCormick, Jr.
patent: 3228838 (1966-01-01), Rinfret et al.
patent: 3416153 (1968-12-01), Hertz et al.
patent: 3710933 (1973-01-01), Fulwyler et al.
patent: 3932943 (1976-01-01), Briggs et al.

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