Container preform assembly and method of manufacture
US6977104B1 · kind B1 · utility
21Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2003 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A preform assembly for blow molding a container includes a molded plastic preform having a body and a neck with an external surface. At least one circumferential channel is molded into the external surface of the preform neck for removing the preform from the forming mold. A plastic finish ring separate from the preform is externally secured to the preform neck over the external surface of the neck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.