Treatment of hygroscopic material
US5638834A · kind A · utility
Inventors
Key dates
| Filing date | May 8, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24B3/182
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An apparatus for providing a water vapor-air mixture for treating a hygroscopic material having a mixing chamber, supply for providing air to the mixing chamber at a temperature in the range of 0.degree. C. to 80.degree. C. and at a pressure in the range of 1 to 3 bar, supply for providing steam to the mixing chamber at a temperature in the range of 100.degree. C. to 25.degree. C. and at a pressure in the range of 1 to 10 bar, the mixing chamber having an outlet in connection with a treatment chamber to provide the treatment chamber with a water vapor-air mixture at a temperature below 200.degree. C. and at a pressure in the range of 1 to 5 bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.