Split vent pin for injection molding
US6877974B2 · kind B2 · utility
35Cited by
22References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Jul 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/812
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to an apparatus and method for venting trapped air and gasses in a mold. The mold and method comprise or use at least one pin formed from multiple pin sections. When assembled, the pin sections provide space on the interior of the pin through which trapped air and gasses can escape from the mold. The present invention may also be used to assist in ejecting an object from the mold. The pins can have circular or non-circular cross-sections and also may have dimple-forming projections to conform to a golf ball dimple pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.