Preform and container having thread groove of varying depth
US8308002B2 · kind B2 · utility
14Cited by
22References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2009 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A finish for a plastic container and a preform adapted to be molded into the plastic container. The finish and the preform include an upper portion having a mouth defining an opening into the container. At least one groove is defined around a radial sidewall of the upper portion. The groove slopes gradually downward along the radial sidewall to a terminal end having a first groove depth at a groove entrance and a second groove depth after a predetermined amount of groove travel. The second groove depth being greater than the first groove depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.