Process and devices for sorting thermoplastic components from a mixed stream
US5590789A · kind A · utility
5Cited by
6References
10Claims
0Family size
Inventors
Key dates
| Filing date | Sep 8, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Thermoplastic articles are removed from a mixed waste stream and are sorted by heating the articles along the path of the waste stream to different softening temperatures of the different types of articles before the articles contact the separating bodies which have surface formations that are forced into the softened zones of the thermoplastic article so that the articles are impaled upon the body. The articles are then removed. The force with which the softened articles are impaled is obtained by a support or counterforce member juxtaposed with the separating bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.