Classifying apparatus and method
US5232099A · kind A · utility
33Cited by
14References
59Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1992 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Apr 15, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Classifying apparatus and methods are disclosed for the classification of extremely small solid particles of 18 mesh or less in which low frequency, high amplitude vibrations are imparted to a screen simultaneously with high frequency, low amplitude vibrations. The screen may be inclined at an angle of about 20.degree. from the horizontal and the screen mesh may be about 18 mesh or smaller and have openings which are approximately square in shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.