Apparatus for creating a gelatin coating
US5228916A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1990 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Nov 5, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J2205/20
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methods and apparatus for applying coating to products such as medicaments are disclosed. The present invention provides a apparatus comprising product holders and plates which interact with vacuum tubes to retain the product being coated in place while inverted and dipped into a tank of coating material. The vacuum tubes may be designed to hold product of nearly any shape or in any orientation. In a preferred embodiment, methods and apparatus for creating a two-color gelatin coating on a tablet are disclosed. In certain embodiments, additional apparatus are provided whereby the vacuum tubes rotate about their longitudinal axes and are placed in contact with a coating applicator, thereby applying a band or stripe of a coating material to a specified section of the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.