Apparatus for the dust-free handling of powder substances
US4340136A · kind A · utility
7Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | May 19, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/186
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus for handling powder substance, comprising a central feed pipe, an outer pipe, a bell-like member of large section which is disposed around the outer pipe and which communicates therewith by way of filter openings, a corolla-like member which is suspended from the bell-like member and into which open the lower ends of the two pipes, a vacuum in the outer pipe, the bell-like member and the corolla-like member, said corolla member floating on the pile of powder substance by virtue of the support effect of the vacuum in the bell-like member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.