Importance

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Abstract

A closure-opening device for a 360.degree. peripherally-scored lid closure member including an 'arrow-tab' element having a base portion, middle portion and a head portion. A tab-score extends around the 'arrow-tab' element and terminates at opposite ends of the tab score at opposite locations adjacent to an underside of the base portion. The head portion has a sharp included-angle point of approximately 60.degree. angle and the base portion has a relatively blunt included-angle point of approximately 120.degree. angle. Reinforcement droplet portions are located in a spaced pair at opposite ends of the tab score. Fingernail engagement projections extend laterally outward from the sharp angle head portion of the tab element. The middle portion has finger-graspable arcuate-shaped recesses on opposite side walls thereof. The 'arrow-tab' element projects upwardly and a stress concentrated for initial rupture of the tab score is provided at the sharp included-angle point while the reinforcement droplet portions preclude any complete separation of the tab element from ever occurring as to the lid closure member. A further raised-surface, upwardly-extending arrow-shaped tab element is provided in a location substantially diametrically opposite to the tab element located substantially radially in the panel portion; the further tab element has an enlarged elliptical base and a further tab score extending completely around the periphery of the further tab element completely removable from the panel portion to have a pour-spout opening surrounded by a pour-spout lip crescent-shaped like a 'C' in a location intermediate the peripheral rim and the pour-spout opening.

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First Claim