Nozzle for a plastics injection molding machine, an extruder orifice, or a hot-chamber tool
US4285660A · kind A · utility
10Cited by
7References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | May 22, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C48/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A nozzle for use in injection molding machines and the like is disclosed which heats the plastic melt maximally in the region of the injection zone. This is accomplished by a unique heating element which has a large surface area in this region. The nozzle is so designed as to create a suitable temperature gradient by interaction between cooperating flanges around the injection orifice and the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.