Can end and rivet base scoreline therefor
US8109405B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2008 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2517/0076
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A can end is provided, which includes a severable panel, a peripheral scoreline defining the periphery of the severable panel, an opening mechanism such as a pull tab, a rivet coupling the pull tab to the severable panel, and a rivet base scoreline in the public side of the severable panel within about 0.025 inch or less of the stem of the rivet. The rivet base scoreline includes an arcuate head portion, first and second arm portions extending from the arcuate head portion, and first and second ends. The base of the rivet has a radius of curvature forming an intersection between the stem of the rivet and the public side of the severable panel. The arcuate head portion of the rivet base scoreline is contiguous with the radius of curvature. The pull tab includes a nose portion having a number of apertures aligned with corresponding portions of the rivet base scoreline disposed thereunder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.