Injection molding valve gated hot runner nozzle
US7972132B2 · kind B2 · utility
2Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2009 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Oct 2, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/2787
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A valve gated hot runner nozzle with at least two transition members made of different materials located between a nozzle tip and a mold gate component to provide a thermal transition region. A first transition member in contact with the nozzle tip is less thermally conductive than a second transition member in contact with the mold gate component. The valve pin when in the closed position makes sealing contact with at least the second transition member such that cooling from the mold gate component is transferred to the valve pin to cool the melt in the mold gate area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.