Freeze-drying apparatus

Details Freeze-drying apparatus Freeze-drying apparatus

1982-06-17

1984-05-22

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

Vacuum

34 5, F26B 1330, F26B 506

Patent

active

044493053

ABSTRACT:
Apparatus for freeze-drying products comprises an enclosure within which mounted shelves provided with cooling and heating means and in which vessels for containing the products are located.
These shelves are arranged in two series, viz a first series maintained at a temperature lower than 0.degree. C. and a second series maintained at a temperature higher than 0.degree. C. in operation and a transfer mechanism is incorporated to cause the vessels to travel from the shelves of the first series to those of the second series, the enclosure being under vacuum.
The invention is applicable for the freeze-drying of food products, biological substances, among others.

REFERENCES:
patent: 3242575 (1966-03-01), Manaresi
patent: 3354609 (1967-11-01), Nerge et al.
patent: 3667135 (1972-06-01), Rowell
patent: 3740860 (1973-06-01), Smith, Jr.

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