Apparatus and method for density separation of plastics
US5740918A · kind A · utility
14Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/38
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for sorting plastic pieces by specific gravity sorting includes a vessel containing water and having an inlet for plastic pieces to be sorted, a device for introducing plastic pieces to be sorted into the vessel through the inlet, a device for removing air bubbles from the plastic pieces within the water, and a device for moving the plastic pieces within the water in the vessel to allow the various plastic pieces to be sorted within the water due to the different specific gravities of the plastic pieces. A method of sorting plastic pieces by specific gravity sorting with the apparatus is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.