Screen separator method for foundry waste materials
US4648560A · kind A · utility
4Cited by
18References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1985 |
| Grant date | Mar 10, 1987 |
| Priority date | — |
| Expiry date | Jun 25, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C5/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is provided of separating non-homogeneous materials, such as solid waste by-products from a foundry, by classifying the materials according to size through a series of classifying screens recognizing that particular types of materials within the entire sample tend to fall within certain size ranges permitting the sample to be sorted to a degree according to size to concentrate particular types of materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.