Tablet coating apparatus and method

Details Tablet coating apparatus and method Tablet coating apparatus and method

1986-10-28

1988-02-16

Bell, Janyce A.

Coating processes

Fraud or tamper detecting

118 19, 118 20, 118303, 118320, 427242, 427377, 427425, A61K 920

Patent

active

047254467

ABSTRACT:
A rotatable drum has means for spraying a coating material onto a localized area of the cascading tablet surface of a tumbling bed of tablets being rotated in the drum. Means (not shown) is also provided for supplying drying air into the drum to dry the coated tablets. Open-ended tubular members mounted inside the drum, pass through the tumbling bed of tablets and completely beneath the localized area as the drum is rotated. The members thus extract tablets from the stagnant core of the tablet bed and distribute the extracted tablets onto the cascading tablet surface so as to hasten the coating process.

REFERENCES:
patent: 2625903 (1953-01-01), Opie
patent: 2807230 (1957-09-01), Brammar
patent: 3357398 (1967-12-01), Gross
patent: 3438353 (1969-04-01), Pellegrini
patent: 3937176 (1976-02-01), Nicholson et al.
patent: 3991225 (1976-11-01), Blovin
patent: 4245580 (1981-01-01), Okawara
patent: 4444810 (1984-04-01), Huttlin
patent: 4476804 (1984-10-01), Glatt et al.
patent: 4499847 (1985-02-01), Dungitschik

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