Preform molding apparatus for forming a preform having a neck ring
US8435027B2 · kind B2 · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2008 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7158
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
To provide a preform, a bottle and a preform molding apparatus capable of preventing lowering in the mechanical strength of a preform, reducing the amount of a resin material, as well as improving productivity.A preform mold 1e used in the preform molding apparatus has a mouth neck part mold 2, a body part mold 3e and a core mold 163, and the body part mold 3e has, on the outer edge of the upper surface of a cylindrical protrusion part 31e, an annular protrusion 33 which controls the moving direction of a solidified film 118 and a solidified film 117 which have been peeled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.