Biological freezing apparatus

Details Biological freezing apparatus Biological freezing apparatus

1988-07-11

1989-10-03

Capossela, Ronald C.

Refrigeration

Storage of solidified or liquified gas

Including cryostat

62 78, 624579, F25B 1900

Patent

active

048708291

ABSTRACT:
Biological freezing apparatus for use on unmodified laboratory liquid cryogen storage container including a specimen holder for holding biological specimens to be frozen and a motor for lowering the specimen holder into the interior of the laboratory liquid cryogen storage containers. An electronic circuit controls the motor so that the specimen holder moves into the interior of the laboratory liquid cryogen storage container at a predetermined desired rate. The specimen holder is constructed of a non-thermally conductive material and this plus its configuration along with the movement of the specimen holder downward at a predetermined rate allows freezing of live biological specimens without doing substantial damage to the specimens.

REFERENCES:
patent: 3233965 (1966-02-01), McCormick
patent: 4388814 (1983-06-01), Schilling
patent: 4548051 (1985-10-01), Moessner
patent: 4751828 (1988-06-01), Coulter et al.

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