Cryogenic freezer

Details Cryogenic freezer Cryogenic freezer

1976-06-29

1978-03-14

Capossela, Ronald C.

Refrigeration

Automatic control

Refrigeration producer

62381, F25B 4100

Patent

active

040783944

ABSTRACT:
A cryogenic freezer with an enclosed chamber into which a freezing fluid is directed through selectively controlled nozzles towards a propeller fan and baffle assemblage that is coaxial with a rotating drum having graduated perforations distributed about its periphery. The drum carries an endless belt which travels in a spiral path about the periphery of the drum and which defines tiers for carrying products to be processed. The freezing fluid passing through the nozzles is directed towards the discharge side of the propeller fan and is guided to the outside perimeter of the moving belt by the baffles. The freezing fluid passes across the product tiers and through the graduated perforations into the center of the drum where it is drawn upwardly by the fan and mixed with incoming freezing fluid.

REFERENCES:
patent: 1429435 (1922-09-01), Jones
patent: 3315492 (1967-04-01), Dreksler
patent: 3412476 (1968-11-01), Astrom
patent: 3769805 (1973-11-01), Corini
patent: 3866432 (1975-02-01), Harrison

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