Foreign substance inspection apparatus
US6977721B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 21, 2003 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Feb 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8592
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A foreign substance inspection apparatus 1 which obtains images of a powder material with a two-dimensional camera 17 and subjects the image data outputted from the camera 17 to image processing, whereby foreign substances mixed into the powder material are detected. The foreign substance inspection apparatus 1 comprises a rotatably supported container 5 with an opening surface in a substantially horizontal state; a liftably supported lift member 7 inside the container; a drive control device for controlling rotation of the container 5 and rise and fall of the lift member 7; and a scraping plate 25 disposed on the opening surface 3 of the container 5. The two-dimensional camera 17 is located so as to obtain images of the surface of the powder material that is exposed on the opening surface 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.