Tab with coin precurl for improved curl formation

A tab to be affixed to a can end, the tab comprising:

• a nose portion located at a front end of the tab;
• a lift portion located at a back end of the tab, the nose portion and the lift portion having curled or hemmed portions located proximate to a peripheral surface of the tab;
• a rivet receiving portion located proximate to the nose portion with a rivet hole, the rivet receiving portion being attached to the nose portion;
• a first surface is provided on the tab which is a top surface of the tab;
• a second surface is provided on the tab which is a bottom surface of the tab;
• and
• one or more arcuate strips are provided on the second surface of the tab proximate to the peripheral surface of the tab,
• wherein the one or more arcuate strips comprise a thinned portion of the tab structured to be formed further into a preselected portion of the curled or hemmed portions of the tab,
• wherein an axis drawn generally through a middle of a bend proximate to the arcuate strips forms an angle, θ1 of approximately 0 degrees to 40 degrees relative to another axis drawn through a wall segment of the tab, and
• wherein a portion of the first surface is coupled to the second surface which defines a contact surface having an axis;
• wherein the top surface of the tab has an axis;
• and wherein the axis of the top surface of the tab is parallel to the axis of the contact surface.