Dynamic mixer screw tip
US7246936B2 · kind B2 · utility
4Cited by
25References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Mar 14, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention includes a screw tip for an extruder screw for effecting mixing in an extruder. The screw tip has a shaft portion and at least one mixing element ring connected to the shaft portion, or a mixing element having an aperture therethrough, or both. The mixing element may have two legs connected by a top portion with the aperture between the two legs to allow flow of extrudate therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.