Process of coating of particles, particularly particles of medic

Details Process of coating of particles, particularly particles of medic Process of coating of particles, particularly particles of medic

1983-01-28

1984-10-16

Silverberg, Sam

Coating apparatus

Edible base or coating type

Tumbling particulate work

118 20, A23G 326

Patent

active

044768044

ABSTRACT:
A process and apparatus for coating particles, particularly particles of medicinal drugs. The apparatus has a rotating drum provided with a perforated cylindrical center section. Particles to be coated are introduced into the interior of the drum and form a layer in a lower quadrant of the cylindrical section during rotation of the drum. A spraying device is located in the interior of the drum for coating the particles with an appropriate mixture or solution. A device is positioned adjacent the portion of the drum containing the particles for introducing gas through the perforations into the layer of particles so as to dry the particles. A device also is provided for removing gas from the drum through the perforations. The device for introducing gas can be separated from the device for removing gas by a central partition, with both devices being carried by a common support. Also, it is possible to introduce gas into a portion of the interior of the drum that is spaced from the layer of particles.

REFERENCES:
patent: 3357398 (1967-12-01), Gross
patent: 3357978 (1967-12-01), Gross
patent: 3573966 (1971-04-01), Hostetler
patent: 3874092 (1975-04-01), Huhlin
patent: 3934545 (1976-01-01), Schady

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