Pt1-2 pull tab

A container opening system

• comprising
• a) a lid, applied to a container body,
• b) said lid comprising
• c) a panel having a scored area for defining a seal portion, referred to hereinafter as the seal, which is frangibly secured to said panel for enabling said seal to be severed from said panel and
• d) a tab comprising
• e) a nose portion, referred to hereinafter as the tab nose, or simply the nose, and
• f) a lift portion, referred to hereinafter as the tab lifter, or simply the lifter,
• g) with a controlled flex central portion, referred to hereinafter as the tab donut, or simply the donut, being disposed between said nose and said lifter, and
• h) means for securing said tab to said panel, referred to hereinafter as the rivet,
• i) said nose being disposed proximate said seal and said lifter being disposed remote therefrom,
• j) such that an upward movement of said lifter creates a downward movement of said nose,
• k) said donut enabling said lifter to be lifted and moved upwards, presenting only a small amount of resistance, referred to hereinafter as the tab flexing resistance, until said nose touches said seal, and
• l) upon further lifting said lifter, said nose would move further downward and would apply forces on the seal with the purpose of breaking said seal, all this happening in a sequence of events, where at first the nose touches said seal and transmits the upward movement and force applied at the lifter inversely to the seal, where upon increasing said force the seal will start to break, at which time a pop may be heard, and upon further application of the movement and force the seal will crack open to a larger extent, and gradually upon still further application of the movement and force the seal will open fully, after which time the seal would require generally a smaller force to be bent and pushed away from the opening to finally allow access to the contents of the container,
• m) all said forces required to break said seal being considerably larger than said tab flexing resistance, requiring the user to apply a considerably larger force at the tab tip during the seal breaking process than the force required to oppose said tab flexing resistance.
• wherein
• n) said tab and said lid panel and said seal are shaped so as to provide a predefined clearance between said nose and said seal, so that the tab lifter and the tab tip will be able to move upward only against the low tab flexing resistance, before encountering the considerably higher seal breaking forces.