Coating-fluidizing gas supply system and method for flat bottom coater
US5328720A · kind A · utility
15Cited by
22References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1992 |
| Grant date | Jul 12, 1994 |
| Priority date | — |
| Expiry date | Oct 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S118/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A coating-fluidizing gas supply system for a flat-bottom fluidized bed coater that maintains a high degree of uniform fluidization of levitated particles for a long enough time period to coat medical-device components. The coating-fluidizing gas supply system prevents premature pyrolysis of the coating component of the gas from plugging gas-distributor holes of a flat plate at the bottom of a flat-bottom fluidized bed coater, by directing multiple gas streams uniformly against the entire undersurface of the flat gas-distributor plate, creating an overall cooling-effect on the gas-distributor plate which prevents clogging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.