System and method for cooling which employs charged carbon dioxi

Details System and method for cooling which employs charged carbon dioxi System and method for cooling which employs charged carbon dioxi

1997-07-14

1998-06-16

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Solidification

62 63, 62264, 62384, F25J 100

Patent

active

057653941

ABSTRACT:
A method and system acts to cool matter through the use of a carbon dioxide snow/vapor flow. The matter is supported in juxtaposition to an outlet for the carbon dioxide snow/vapor and a conductor which exhibits a reference potential state. To perform the method, a flow of liquid carbon dioxide is subjected to a pressure expansion to create a flow of carbon dioxide snow and vapor. The carbon dioxide snow and vapor then come into contact with a conductive surface and achieves a charge as a result of frictional engagement with the conductive surface. Thereafter, the carbon dioxide snow/vapor is directed towards the matter to be cooled and the conductor which exhibits a reference potential. The reference potential state attracts the carbon dioxide snow and aids in contact thereof on the matter being cooled.

REFERENCES:
patent: 3443389 (1969-05-01), Townsend et al.
patent: 3492829 (1970-02-01), Stanford, Jr.
patent: 3786644 (1974-01-01), Rich et al.

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