Apparatus for injection molding of multi-layer objects
US5667819A · kind A · utility
5Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1994 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Nov 4, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/1642
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of injection molding of workpieces, formed of at least two different layers, and which includes forming at least one layer from lacquer, with the apparatus for effecting the method including at least two injection molding devices for forming melts of lacquer and non-lacquer materials and an injection unit communicating with the two devices for injecting the two melts into a mold cavity of a mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.