Screw machine having a vacuum housing insert
US8360627B2 · kind B2 · utility
4Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2010 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2948/92895
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screw machine for treating at least partially powdery bulk material has a housing with at least one housing bore and a screw arranged in the housing bore. A vacuum housing portion is provided, which is formed as a vacuum housing insert, which is releasably attached in the housing, in which a metal nonwoven is exchangeably held as a gas-permeable wall portion on a base body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.