Sieving apparatus
US7694826B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2009 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Feb 3, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B2230/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An industrial sieving or screening machine has a resonator rod on the separator screen. The rod extends between two spaced ends and has a transducer located at one end to excite the rod over its length to assist with deblinding the screen. The rod may be spiral in shape or shaped with other smoothly blended complex curves such as an S-shape. A spiral rod resonator fixed to the top of the sieve screen may be used as a guide for material to be screened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.