Neck ring for forming a neck portion of a preform and the mold stack incorporating same
US8398392B2 · kind B2 · utility
5Cited by
11References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2011 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/253
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
There is provided a neck ring for defining at least a portion of a neck portion of a preform. The neck ring comprises a body having: mounting flange and a molding face, the molding face including a venting structure, the venting structure having: (i) a plurality of air vent grooves for collecting and venting, in use, excess air from a molding cavity as it is being filled with the molding material, and (ii) an air collector groove in fluid communication with the plurality of air vent grooves for providing an evacuation path for the air to be vented from the plurality of air vent grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.