Adjustment of motion of screening machine
US4057492A · kind A · utility
2Cited by
9References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Jun 18, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18552
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The screening motion of a screening machine is changed by adding ballast, while the machine is in operation, to selected closed compartments moving with the vibrating assembly. In the preferred embodiment, the ballast is added through flexible tubing which is inserted through ports that close with spring loaded oil hole caps. When the tubing is pulled from the ports, the caps snap closed to capture the ballast in the selected compartments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.