Reclosable lid for a food or beverage container and having a vacuum or pressure release button

A sheet metal lid having a vertical axis and including a top wall and a peripheral rim portion with a bonded sealant material, and adapted to be releasably secured to a container receiving a vacuum or pressure enclosed product, the lid comprising,

• a portion of the top wall defining a vent button having a top wall portion, a surrounding annular side wall portion with an outwardly projecting flange portion extending around the side wall portion below the top wall of the lid,
• the flange portion having a first score line adjacent the side wall portion of the button and projecting substantially into the thickness of the sheet metal forming the flange portion,
• a second score line within the flange portion and spaced radially outwardly from the first score line,
• the second score line extending into the flange portion at a depth less than the depth of the first score line,
• the first score line being effective to rupture without rupturing the second score line in response to a predetermined downward pressure on the top wall portion of the vent button to define a narrow gap along the first score line for releasing vacuum or pressure from the container,
• a third score line extending into the flange portion at a depth less than the depth of the first score line and cooperating with the first score line to minimize distortion of the flange portion when the flange portion flexes downwardly before the first score line is ruptured, and
• a set of concentric third score lines and radially extending third score lines within the flange portion of the vent button.