Method for pressure molding objects of different resins
US4701292A · kind A · utility
64Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1984 |
| Grant date | Oct 20, 1987 |
| Priority date | — |
| Expiry date | Sep 13, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The method and device of the present invention include an injection mold, an injection nozzle communicating with said injection mold via a single injection channel, a first feeding means for feeding a first resin to said nozzle and injection mold, a second feeding means for feeding a predetermined amount of a second resin to said nozzle and injection mold operative to leave second resin in said nozzle, and means to remove out of said nozzle the second resin left therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.