Tab with coin precurl for improved curl formation
US7614520B2 · kind B2 · utility
11Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | May 15, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/906
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tab is used to open beer/beverage can ends and food can ends. The tab has one or more arcuate strips that are provided on a surface of the tab proximate to a peripheral surface of the tab where the one or more arcuate strips have been formed further into a preselected portion of curled or hemmed portions of the tab. Tooling for the manufacture of the tab is also provided. A method for manufacturing the tab is additionally provided as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.