Cryogenic device and method

Details Cryogenic device and method Cryogenic device and method

1982-03-26

1983-06-21

Capossela, Ronald C.

Refrigeration

Processes

Treating an article

62 78, 62383, 62514R, F25D 2500

Patent

active

043888143

ABSTRACT:
The temperature of a biological specimen or other object may be controlled by supporting the object within a vessel containing a liquid cryogen above the liquid cryogen level and varying the vertical spacing between the object and the liquid cryogen level. The vessel is provided with vertically continuous inner walls of high thermal conductivity, e.g., metal walls, to provide a vertical temperature gradient within the vessel above the liquid cryogen level.

REFERENCES:
patent: 3195620 (1965-07-01), Steinhardt, Jr.
patent: 3916640 (1975-11-01), Rasovich
patent: 3938347 (1976-02-01), Riedel et al.
patent: 4306425 (1981-12-01), Sitte et al.
patent: 4314450 (1982-02-01), Pelloux-Gervais
Schiling, D. W., A Precision Temperature Control Mechanism for Vapour Freezing; Abstract from Cryobiology, Dec. 1978.
Frim, J. et al., Controlled Variable-Rate Freeze Thaw Apparatus: Cryobiology 15, 317-322 (1978).

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