Injection molding three portion gate and cavity insert
US6030202A · kind A · utility
30Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/7325
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding one-piece gate and cavity insert with the gate extending therethrough which receives a heated nozzle and forms part of the cavity. The gate and cavity insert has a cooling fluid passage extending through it. The gate and cavity insert has an inner portion, an outer portion and a gate portion. The inner and outer portions which are in contact with the cooling fluid are made of a corrosion resistant material such as stainless steel. The gate portion which is not in contact with the cooling fluid is made of a more wear and heat-shock resistant material such as H13 tool steel or a tungsten carbide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.