Bell-shaped device for apparatus for charging dusty materials
US4248277A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Mar 26, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/186
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A charging device for pulverulent or granular materials also containing fine particles which are likely to fly around, which comprises from the bottom to the top: PA0 (a) a light charging chamber in the shape of a truncated pyramid or truncated cone comprising at least two polygonal or toric crowns formed by inflatable tubes situated in different planes, rigidifying cross-members between the tubes, and a flexible skirt integral with the tubes, PA0 (b) a flexible connecting hopper connected in a sealed manner to the inflatable charging chamber, PA0 (c) a sleeve between the flexible hopper and a material feed nozzle, and PA0 (d) finally at least one dust suction nozzle connected to a dust-removing device, the charging device having the characteristics of floating on the heap of material being formed, and preventing dust spirals formed during operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.