Foreign substance eliminating apparatus
US6637598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2002 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Mar 22, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C5/367
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A foreign substance eliminating apparatus transfers raw material by passing the raw material between an upstream conveyor (6) and a downstream conveyor (8), and detects a foreign substance on the upstream transfer conveyor with a foreign substance detector (9). An eliminating airflow (R) is ejected from a row of air nozzles (13) when the detected foreign substance falls down, and deflects the falling direction of the foreign substance. At this point, a small foreign substance (BS) is blown off by the eliminating airflow, and sent to the foreign substancereceiving box (16). On the other hand, a large foreign substance (BL) goes across the eliminating airflow, and falls down onto the bar screen conveyor (20). The bar screen conveyor captures the large foreign substance, and removes it outside of the conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.