Apparatus and a method for the extrusion of moulding from a cross-linkable polymer material
US6524516B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2301/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to apparatus for extruding mouldings from cross-linkable polymer material. The apparatus includes a first part to which the polymer material is delivered from a material container, and a second part which forms a moulding tool for moulding and cross-linking said article. The first part of the apparatus includes a feed zone (2) that has an inlet (8), a generally tubular outlet (7) and a rotatable feed screw (10) that functions to compress and feed the polymer material in a unmelted or solid state from said inlet (8) to said outlet (7), wherein the length of the feed screw (10) does not exceed the length of the feed zone (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.