Shelf lowering and vial stoppering freeze-drying apparatus

Details Shelf lowering and vial stoppering freeze-drying apparatus Shelf lowering and vial stoppering freeze-drying apparatus

1984-05-25

1985-08-27

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

Vacuum

53102, 53264, F26B 1330, B65B 728

Patent

active

045369720

ABSTRACT:
Upper shelves supported within a tall vacuum drying chamber of freeze drying apparatus are positioned above eye level sighting of an operator of average height, rendering loading of vials upon these upper shelves and unloading therefrom, a difficult task. Typically, the vials, containing pharmaceutical or biological liquid, have stoppers loosely engaged therein. Means are provided for stacking the upper shelves to an appropriate sighting level for sequential loading which returns the shelves to their initial position. The loaded shelves are again lowered to a comfortable height for unloading thereof after all vials on lower and upper shelves have their loosely fitted stoppers fully engaged within their vials by stoppering means.

REFERENCES:
patent: 3537233 (1970-11-01), Costello et al.
patent: 3775942 (1973-12-01), Powell et al.

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