Drying and gas or vapor contact with solids – Apparatus – Vacuum
Patent
1976-01-19
1977-07-26
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
Vacuum
34 5, 34135, F26B 1330, F26B 506, F26B 512
Patent
active
040373312
ABSTRACT:
This invention relates to freeze-drying of particles of material, for example biological, pharmaceutical and food products.
Ordinarily the apparatus used for this purpose has comprised at least one rotary sublimation enclosure each fitted with at least one agitating vane which normally operates about a horizontal axis, but this produces certain disadvantages. According to the present invention, in addition to this vane which is adapted to form a catchment trough when passing through a lower zone of the enclosure and a chute emptying into an axial discharge zone when it ascends, there is provided a cylindrical set of longitudinal vanes which continue on from this agitating vane. Means are also provided for transferring particles from the cylindrical set of vanes to the agitating vane which forms the catchment trough and discharge chute.
REFERENCES:
patent: 2029126 (1936-01-01), Rybeck
patent: 3088222 (1963-05-01), Mace et al.
patent: 3751820 (1973-08-01), Brilloit
Camby John J.
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
LandOfFree
Freeze-drying apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Freeze-drying apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Freeze-drying apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-717795