Separating device for discriminating between defective and nondefective articles
US5419442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 24, 1994 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Jan 24, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S209/92
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The separation device includes a container having a dome-shaped base and a peripheral wall surrounding the base to define a chamber for receiving a random mixture of defective and nondefective articles. A spiral-shaped ramp on the peripheral wall which surrounds the chamber and overhangs the base, leads to an elevated outlet opening. A vibrating device vibrates the chamber to excite movement of the defective and nondefective articles along the base and onto and up the ramp toward the outlet opening. The container also includes trap openings in the base and ramp to eliminate defective articles from the chamber. Discriminating devices are provided on the ramp that cause defective material to fall from the ramp back onto the base of the chamber. Only the nondefective articles can move on the ramp past the trapping devices toward the outlet of the container for transfer to another processing station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.