Device for continuously decaffeinating raw coffee
US4922812A · kind A · utility
6Cited by
8References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1988 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Oct 20, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23F5/223
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for continuously decaffeinating raw coffee includes a first extractor having at least one cell for use in a first treatment stage where raw coffee is preswollen by a swelling fluid that is added to the raw coffee. The at least one cell receives the raw coffee that is to be preswollen and is defined by a bottom and a plurality of sidewalls that extend towards one another to define a wedge-shaped cell. Additional similarly shaped cells and receiving chambers positioned below the cells may also be provided with a perforated bottom separating each cell from its respective receiving chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.