Freezing apparatus and method

Details Freezing apparatus and method Freezing apparatus and method

1978-03-30

1979-12-11

O'Dea, William F.

Refrigeration

Processes

Congealing flowable material, e.g., ice making

F25C 510

Patent

active

041776488

ABSTRACT:
A method of freezing a liquid is disclosed comprising the steps of establishing a freezing zone, delivering the liquid to the freezing zone so that the liquid runs across the freezing zone, and collecting the unfrozen liquid running off the freezing zone for return to the freezing zone. The delivery of liquid is stopped when a sheet of frozen liquid of desired thickness is established on the freezing zone, and the freezing step is continued to harden the sheet of frozen liquid. The freezing zone is heated to harvest the sheet of frozen liquid by thawing the bond between the freezing zone and the sheet initially at the periphery of the freezing zone and thereafter throughout the freezing zone. The harvested sheet of frozen liquid is gravity dropped from the freezing zone into a fragmenting zone where the sheet is broken into fragments.

REFERENCES:
patent: 2524815 (1950-10-01), Leeson
patent: 2645095 (1953-07-01), Ploeger
patent: 2962869 (1960-12-01), Bartels
patent: 3246481 (1966-04-01), Douglas et al.
patent: 3423952 (1969-01-01), Pugh
patent: 3430452 (1969-03-01), Dedricks et al.

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