Extrusion equipment comprising an improved extrusion head
US11364667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Jun 21, 2022 |
| Priority date | — |
| Expiry date | Oct 7, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2021/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An installation for producing a profiled band based on several mixtures of elastomers of a different composition by means of coextrusion. The installation includes at least two extruders for supplying a mixture of elastomers to an extrusion head. The extrusion head comprises an assembly of at least two plates which are arranged side by side. Each plate having at least one cavity which enables the mixture from an extruder to be chaneled towards an outlet hole. The plates are arranged substantially transversely relative to the output direction of the mixture flows of the extruders in order to produce a discharge at approximately 90° of the mixture flow at the outlet of the screw of each extruder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.