Method of degassing a flowable mass in a ring extruder
US7981340B2 · kind B2 · utility
2Cited by
9References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2009 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Dec 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The method of degassing is performed in a ring extruder wherein at least one process chamber is provided with at least one degassing opening. The radius R of the conveyor element in the degassing zone is smaller by ΔR than the full radius Rv of the conveyor element required for the mutual stripping of adhering product in a closely intermeshing screw operation with adjacent conveyor elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.