Injection molding apparatus
US6379138B1 · kind B1 · utility
90Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/545
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a retractable pin assembly for an injection mold. One end of the retractable pin is inside the mold, while the other end extends outside of the mold cavity. The inside end of the retractable pin may by shaped to conform with the shape and texture of the mold cavity wall. The retractable pins are moved in and out of the mold cavity by cams that rotate around the injection mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.