Patent ID: 9580203
Date: 2017-02-28
CPC Classifications: B21D,B65B,B65D,Y10T

Claim:
1. A metallic end closure with controlled opening characteristics, comprising: a peripheral curl which is adapted for interconnection to a neck of a container body; a central panel; a countersink positioned between said peripheral curl and said central panel; a pull tab having a nose end and a tail end, wherein said pull tab is operably interconnected to said central panel; a first score line in said central panel which defines a tear panel, said tear panel severable along said first score line when said nose end of said pull tab is pushed downwardly on said tear panel; a first anti-missile feature positioned proximate to said first score line which deforms at least a portion of said first score line to affect the rate at which said tear panel opens along said first score line when a user pivots said nose end of said pull tab into said tear panel; and a second anti-missile feature positioned proximate to said first anti-missile feature, wherein said second anti-missile and said first anti-missile feature are substantially parallel.