Mixer to improve melt homogeneity in injection molding machines and hot runners
US6382528B1 · kind B1 · utility
17Cited by
15References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/308
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In an injection molding machine a mixer is provided that reduces the flow imbalances inherent in the melt as the flow branches within a manifold or other part of the injection machine. The mixer increase melt homogeneity by gradually mixing and changing the melt flow from all helical flow to all annular flow. The mixer provides an improved means for reducing flow imbalances that results in the elimination of weld lines and other part non-uniformities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.