Single-use sheet plastic closure for application to rimmed containers

A one-piece sheet plastic peripherally rupturable single-use closure for application to rimmed containers of the same shape and of the type usable to hold edible goods comprising:

• (A) a crown having a vertical plane of symmetry;
• (b) a skirt downwardly dependent from the periphery of the crown;
• (c) means in one piece with the skirt for detachably and mechanically tightly locking said closure to the rim of the container;
• and
• (D) a pull tab in one piece with the closure at the lower edge of the skirt for destroying the integrity of the periphery of the closure when bent back and pulled, said pull tab extending angularly outwardly to form a handle access portion and having an edge spaced away from the skirt to define a notch with a narrow apex at the outer edge of the skirt, whereby when the pull tab is bent and has a tensile force applied thereto it will start a tear which will progress from the apex of the notch through a portion of the periphery of the closure to destroy the integrity of said periphery and permit the closure to be removed from the container and discarded.