Screening machine
US4169788A · kind A · utility
4Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1978 |
| Grant date | Oct 2, 1979 |
| Priority date | — |
| Expiry date | Mar 2, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screening machine (FIG. 3) having a vibrator constructed so that the striking elements 7 move substantially only vertically. The vibrator comprises springs having crossing elements 2,3 mounted on the frame and connecting member 4. The connecting member 4 can be moved to rotate the striking elements about the crossing point D of the crossing elements, which is disposed substantially in the plane of the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.