Electrostatic separation of plastic materials
US5118407A · kind A · utility
12Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1990 |
| Grant date | Jun 2, 1992 |
| Priority date | — |
| Expiry date | Oct 16, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and associated method of separating mixed fragments of different plastic materials, in which the materials to be separated are capable of carrying electrostatic charges of opposite polarities. The mixed charged fragments are given an induced electrostatic charge and are then exposed to electrostatic field of opposite polarities where they are separated by being allowed to migrate toward their respectively oppositely charged fields. The separated material fragments are then collected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.