Apparatus for introducing injection material into a mold
US5660864A · kind A · utility
4Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Aug 24, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/541
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
By embodying a feed screw (17) for glass fiber reinforced polyester material with a hollow shaft, it is possible for the injection piston (11) for an injection unit (9) to have a compact structure so as to be passed through the feed screw (17). To process even viscous polyester compositions gently, the injection piston can be equipped with a plasticizer screw and an associated plasticizer motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.