Can lid closure and method of joining a can lid closure to a can body

US8490825B2 · kind B2 · utility

Assignee

• Metal Container Corporation · US

Inventors

• James Reed · Clearwater, US
• Christopher G. Neiner · Chesterfield, US

Key dates

• Filing date: Jul 25, 2005
• Grant date: Jul 23, 2013
• Expiry date: Mar 28, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D17/08
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Over the years there have been numerous attempts to improve the can lid oftentimes found on aluminum beverage can lids. The aims have traditionally been to reduce costs and improve performance. These aims have been accomplished through a variety of means, such as creating different formations within the can lid to reduce the amount of metal used while maintaining performance levels. Here, step portions are utilized between the annular countersink and the center panel of the can lid that cause a curvature of the center panel or to simply provide an angled inside wall. These formations, thus, reduce the amount of metal used while maintaining quality and yielding the desired performance.