Procedure and apparatus for freezing a product to be subjected t

Details Procedure and apparatus for freezing a product to be subjected t Procedure and apparatus for freezing a product to be subjected t

1991-01-08

1992-07-21

Bennet, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 17, 34 60, 34 92, 62100, 62268, F26B 506

Patent

active

051311682

ABSTRACT:
The product is frozen and freeze-dried in a freeze-drying apparatus (1) containing a freeze-drying chamber (2) with shelves (6) for performing the freeze-drying and a condenser (11), the cooling surfaces of which are formed by a coiled tube (14) in a number of tube coil turns (15), and where the low temperature created by the condenser (11) is used to freeze the product. To carry out the freezing quickly and simply the product is put into trays or dishes (21) and these trays or dishes are positioned on the tube turns (15) of the condenser (11) already in operation.

REFERENCES:
patent: 1418638 (1922-06-01), Frankel et al.
patent: 2345548 (1944-03-01), Flosdorf et al.
patent: 3077036 (1963-02-01), Neumann
patent: 3192643 (1965-07-01), Rieutord
patent: 3382586 (1968-05-01), Lorentzen
patent: 3648379 (1972-03-01), Mercer et al.
patent: 4035924 (1977-07-01), Faure
patent: 4449305 (1984-05-01), Baron et al.
patent: 4780964 (1988-11-01), Thompson, Sr.

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