Lid for beverage can excellent in pressure resistant strength
US7874450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2008 |
| Grant date | Jan 25, 2011 |
| Priority date | — |
| Expiry date | Jun 12, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D17/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A lid for a beverage can possessing excellent characteristics in pressure resistant strength in which a predetermined pressure requirement is ensured by a simple gauging down. An annular groove portion of the can lid is formed to have such cross-sectional shapes that a panel wall portion is connected to a chuck wall radius portion so that a tangential line at a second contact point is vertical with respect to an axial direction of a center panel portion, while a chuck wall portion is connected to the chuck wall radius portion so that a tangential line at a first contact point is inclined to the radially inner side, and a curved portion with a radius R1 is provided at a height h1 from the lowest point of the chuck wall radius portion and bent to the radially outer side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.