Patent ID: 8783496

Claim:
A can lid having a primary opening and a vent opening comprising a can lid top having a score line defining a tear panel, a tab having a rivet hole; the tab connected to the can lid top with a rivet surrounded by the rivet hole; the rivet having a cross section; the tab comprising a primary tab portion having a front end and a back end; the back end having a shelf; the shelf having a length and the tab further comprising a secondary tab portion having a fixed end and a free end connected with a beam having a length and a width; at least a portion of the free end extending over the shelf defining an overlap; the can lid top having a second score line defining a vent panel, the front end of the primary tab portion positioned to sever the primary score line when the back end of the primary tab portion is lifted and the free end of the secondary tab portion positioned to sever the vent score line after the primary score line has been severed; the free end of the secondary tab portion positioned above the shelf before the primary score line is severed and below the shelf after the primary score line is severed; the free end of the secondary tab comprising a puncture point for initially severing the vent score line and a skirt which engages the vent score line after the initial severing the skirt length being shorter adjacent the puncture point and becoming longer distal to the puncture point.