Metal end shell and easy opening can end for beer and beverage cans
US6761280B2 · kind B2 · utility
53Cited by
33References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2001 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/906
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A sheet metal end shell for conversion into easy opening beer and beverage ends with reduced metal usage while maintaining commercially acceptable buckle resistance. The end shell has an upper chuckwall portion that is disposed at an angle of about 20-35 degrees to vertical, a countersink bead having a width of about 0.020-0.040 inch, and further preferably having a countersink depth of less than about 0.250 inch and a panel depth less than about 0.070 inch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.