BEVERAGE CAN END WITH VENT PORT

摘要

A can end (10) for a beverage container has a center panel (12) with a stay-on tab opening system. A tear panel (20) is defined by a first frangible score (22) and a non-frangible hinge segment (25). A tab (26) is attached to the center panel by a rivet (28). The tab has a void region (48) partially surrounding a rivet island (46). A first circle (86) has a first center point located at a center of the rivet (28) and a first radius equal to a distance from the center of the rivet (28) to a radially outermost point of the void region (48) on a first axis (78) running through the nose (30) and lift ends (32) of the tab (26) and a center of the rivet (28). A second circle (90) has a coincident center and a second radius less than 2.5 times the first radius. A second frangible score (74, 174) is spaced completely radially outwardly from the rivet island (46) and between the first and second circles (86, 90).