Screw extrusion press having barrel temperature control means
US4643660A · kind A · utility
10Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1985 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Jul 12, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A screw extrusion press having a barrel temperature control means is disclosed, which press permits the inner liner or cylinder of the barrel or a portion thereof to be replaced rapidly without necessitating simultaneous replacement of the temperature control means. This object is achieved by providing intermediate rings between individual extruder barrel portions, the rings each defining annular passages and guide means for the temperature control medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.