Injection nozzle having a heated head portion
US6992269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2003 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Sep 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/2737
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection nozzle for an injection molding apparatus is provided. The injection nozzle includes a head portion, a body portion and a heater. The head and body portions are connected to each other and together define a nozzle melt channel. The head portion has a head portion outer surface. The head portion is adapted to be in contact with a molding apparatus component that is at a lower temperature than the head portion. The body portion has a body portion outer surface. A groove is defined in the head portion outer surface and the body portion outer surface. The heater wire is positioned in the groove. The heater is adapted to heat melt in the nozzle melt channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.