Plasticating screw
US7021816B2 · kind B2 · utility
2Cited by
23References
8Claims
0Family size
Inventor
Key dates
| Filing date | Apr 8, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Apr 25, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plasticating screw including a grating mixing section provided to enhance mixing of incompatible materials. The screw includes a mixing section including an inlet groove having a closed distal end, a discharge groove circumferentially spaced from the inlet groove, the discharge groove having a closed proximal end. Located between the inlet groove and the discharge groove is a land region is including at least one grating element that includes a plurality of grooves extending between the inlet groove and the discharge groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.