Coating apparatus – With vacuum or fluid pressure chamber
Patent
1977-03-14
1979-01-09
Rimrodt, Louis
Coating apparatus
With vacuum or fluid pressure chamber
118 19, 118303, B05C 308, B05C 1102
Patent
active
041332903
ABSTRACT:
This invention provides an apparatus and process for automatically coating solid pharmaceutical dosage forms, e.g., tablets. The apparatus comprises a coating pan, having a rotating means, e.g., motor and a weighing means, e.g., scales in combination with the pan and motor. A process controller is in electronic communication with both the pan motor and scales, for controlling the pan rotation and monitoring the weight of the coating pan contents. There is also provided a plurality of material containing reservoirs having conduit means communicating with the interior of the pan. The material containing reservoirs may also have weighing means, e.g, scales in combination with the reservoirs, which are also in electronic communication with the process controller. These reservoirs may contain a water supply, a coating syrup supply, color suspension supply, and polishing ingredients for use in coating the tablets. The process controller is pre-programmed to dispense the various coating ingredients in a precise sequence, while monitoring the coating weight of the tablets, whereby the entire coating process is automatically effectuated in one continuous operation.
REFERENCES:
patent: 3141792 (1964-07-01), Lachman et al.
patent: 3390648 (1968-07-01), Martin
patent: 3937176 (1976-02-01), Nicholson
patent: 3991225 (1976-11-01), Blouin
patent: 4038939 (1977-08-01), Hoyer
patent: 4050406 (1977-09-01), Reni
Honor Robert S.
Jewell Walter F.
Melliger Guido W.
Rimrodt Louis
Sharkin Gerald D.
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