Device for continuously producing seamless plastic tubes
US6616437B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Proposed is a device for continuously producing seamless plastic tubes, wherein provided as a distributor element for the molten material to be fed to an annular gap is a distributor plate which is arranged within the cross-section of the mold cavity and in which the molten plastic material is passed to the peripheral surface of the distributor plate substantially radially with respect to the direction of production by way of distribution passages which branch tree-like, wherein the flow path of the molten plastic material is the same in each of the individual distribution passages between the entry opening and the peripheral surface
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.