Beverage can end frangible score geometry
US9950832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Dec 10, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2517/5097
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An ecology stay-on tab beverage can end has a first axis extending though a rivet. A tear panel is defined by a frangible score and a non-frangible hinge that joins a first end of the frangible score with a second end of the frangible score. The first axis forms a line of asymmetry of the tear panel. A second axis intersects the first axis at a right angle. An intersection of the first axis with the second axis defines a center point of a clock-like reference having a 12 o'clock position at the first point and a 6 o'clock position at the second point. A first radius of curvature of the frangible score between a 5 o'clock position and a 7 o'clock position is at least 3.6 times larger than a second radius of curvature between a 7 o'clock position and a 9 o'clock position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.