Co-injection with continuous injection molding
US9937647B2 · kind B2 · utility
1Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2015 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Jun 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/1698
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A carousel-like continuous co-injection molding system includes an arrangement of upper and lower inclined feed channels. Each of the feed channels has a valve therein positioned upstream of an inlet to an associated mold cavity. The valve is controllable so that adjustments may be made in real time to achieve or maintain delivery of molten polymeric material to the mold cavity at constant pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.