Sieving
US4261817A · kind A · utility
11Cited by
5References
16Claims
0Family size
Inventors
Key dates
| Filing date | May 25, 1979 |
| Grant date | Apr 14, 1981 |
| Priority date | — |
| Expiry date | May 25, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B4/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a sieving apparatus a suction chamber is connected to a source of vacuum. The chamber is connected to sieve by a plurality of air channels. Air inlets supply air to the underside of the sieve to agitate the material being sieved. A sieve case has a cover with apertures to permit more air to enter the sieve case to further agitate the material being sieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.