Screens for vibratory separators
US6510947B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2001 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Oct 11, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/469
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screen assembly and methods for using it, the screen assembly including, in certain aspects, at least two layers of screening material one on top of the other and including at least a first layer over a second layer, each layer having screen mesh with rectangular openings as viewed from above, the first layer having first rectangular openings, and the second layer having second rectangular openings, each of the first rectangular openings having a first width and a first length, and each of the second rectangular openings having a second width and a second length, the ratio of the first length to the first width ranging between 1.55 and 2.00, the ratio of the second length to the second width ranging between 1.55 and 2.00, the ratio of the first length to the second width ranging between 0.95 and 1.05, and the lengths of the first rectangular openings are parallel to lengths of the second rectangular openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.