Method and device for processing powder
US7238459B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Oct 20, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/35
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A powder is de-aerated in a collector and then transferred to a chamber via a valve. The chamber may then be injected with a low-pressure air stream carrying an additive for mixing with the de-aerated powder. The mixing of the powder with the air and additive stream may occur in the valve and/or chamber. After mixing of the powder with the air and additive stream, the mixed powder and additive may be further mixed in the chamber and/or second valve prior to transferring the mixed powder and additive to a holding container or other processing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.