Refrigeration – Processes – Suspending in upwardly directed current
Patent
1980-09-10
1981-11-24
Capossela, Ronald C.
Refrigeration
Processes
Suspending in upwardly directed current
62 63, 62 65, F25D 1700
Patent
active
043016596
ABSTRACT:
Articles of food to be frozen are delivered to an article conditioning conveyor and are maintained in a fluidized state by refrigerated air flowing upwardly therethrough. The conveyor is driven forwardly but is interrupted by at least one downward stepping movement, causing a thinning of the product bed and a rapid increase in air velocity to thus cool and separate the food articles preventing them from freezing to one another. The food articles are thereafter subjected to deep bed mass fluidization by flowing freezing air therethrough in a fluidized state.
REFERENCES:
patent: 1202574 (1916-10-01), Parker
patent: 2223972 (1940-12-01), Sterling
patent: 2365838 (1944-12-01), Perkins
patent: 2402921 (1946-06-01), Sharpe
patent: 3115756 (1963-12-01), Overbye
patent: 3122897 (1964-03-01), Overbye
patent: 3807186 (1974-04-01), Hardy
patent: 3982404 (1976-09-01), Overbye
patent: 4186566 (1980-02-01), AuYoung
Briley George C.
Martin Walter H.
Pao Peter Y. M.
Capossela Ronald C.
Refrigeration Engineering Corporation
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