Nozzle tip with weld line eliminator
US6089468A · kind A · utility
38Cited by
20References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1999 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 8, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/308
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flow channel is provided in a nozzle housing for resin flow, said flow channel having an inlet area for receiving resin and an outlet area for transferring resin to a mold cavity. An elongated shaft extends in the flow channel. At least one spiral groove is provided in the flow channel facing the shaft that decreases in depth towards the outlet area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.