De-inking screen with air knife
US8857621B2 · kind B2 · utility
6Cited by
69References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21B1/028
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A material separation system includes a separation screen and an air directing device positioned above the separation screen. The separation screen has at least one rotating shaft, wherein the separation screen transports the relatively rigid material and relatively flexible material to the rotating shaft. The air directing device directs air towards the separation screen such that the relatively flexible material is blown beneath the rotating shaft in a first material stream, wherein the relatively rigid material continues on the separation screen past the rotating shaft in a second material stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.