Patent · US Expired

Tablet coating apparatus

US4217851A · kind A · utility

15Cited by
2References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 27, 1979
Grant dateAug 19, 1980
Priority date
Expiry dateAug 27, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S118/05
  • WIPO fieldFood chemistry
  • WIPO sectorChemistry

Abstract

Apparatus useful for spray coating discrete particles, such as pharmaceutical tablets, with liquid coating compositions which are essentially free of organic solvents, the apparatus having at least three spaced spray nozzles mounted on a spray manifold having a conical surface design which is located within a vertically disposed two-zone coating chamber, having a gas inlet at the chamber base adapted to project the particles to be coated through a coating zone for recirculation through a drying zone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.