Process for coating granular materials
Abstract
Abstract THIS INVENTION RELATES TO A PROCESS FOR COATING GRANULAR MATERIALS, INCLUDING TABLETS AND PILLS, AND AN APPARATUS FOR TREATING THE SURFACES OF GRANULES WITH COATING MATERIALS, INCLUDING LIQUID AND POWDER, AND/OR DRY AIR. THE APPARATUS OF THE INVENTION COMPRISES A DISH MOUNTED ROTATABLY AT ITS CENTER AND A STATIONARY BARREL HAVING A SMOOTHLY CURVED INNER-SURFACE WHICH CONTINUES UPWARDS FROM THE PERIPHERY OF THE DISH. THE GRANULES TO BE COATED ARE CONTINUOUSLY CIRCULATED IN A RECEPTACLE INTEGRAL WITH THE DISH AND THE BARREL BY ROTATING THE DISH. SUCH CIRCULATION OF THE GRANULES PROVIDES EXCELLENT FLUIDITY AND ABRASION BETWEEN GRANULES THAT COATING MATERIALS AND/OR DRY AIR SPREAD UNIFORMLY OVER AND CONTACT ALL GRANULE SURFACES IN A SHORT TIME.
Inventors
- 👤 Yoshiro Funakoshi
- 👤 Takehiko Kajiura
- 👤 Kiyoshi Fujii
- 👤 Toshihiko Kanamaru
- 👤 Masaki Nishitani
- 👤 Hiromu Komeda
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |