One piece sealing bottle cap and bottle

Claim 1

IN COMBINATION A BOTTLE HAVING A NECK, A THREADED PORTION ON THE NECK, AND SUBSTANTIALLY FLAT LIP, AND A ONE PIECE FLEXIBLE AND RESILIENT SEALING CAP ADAPTED TO BE SECURED ONTO THE THREADED PORTION ON THE NECK OF THE BOTTLE, SAID CAP COMPRISED OF A CYLINDRICAL SHELL CLOSED AT ONE END THEREOF; THE SAID CYLINDRICAL SHELL CLOSED THREADED ON THE INNER VERTICAL WALL TO COOPERATE WITH THE THREADED PORTION ON THE NECK OF THE BOTTLE; THE SAID CLOSED END OF THE CAP COMPRISED OF AN INNER CONVEX SURFACE SHAPED TO PREVENT ENTRANCE INTO THE MOUTH AND AGAINST THE NECK OF THE BOTTLE AND AN OUTER CONCAVE SURFACE; SAID CONVEX-CONCAVE END HAVING A SLIGHT GRADUAL INCLINE FORMING A SPHERICAL SHELL SEGMENT HAVING A RADIUS SUBSTANTIALLY GREATER THAN THE DISTANCE FROM THE WALL OF THE CYLINDRICAL SHELL TO THE LONGITUDINAL AXIS OF SAID SHELL, SAID SEGMENT BEING FLEXIBLE AND CAPABLE TO BEND UPWARDLY ABOUT THE LIP OF THE BOTTLE SO THAT SAID LIGHT GRADUAL INCLINE AT AN ANNULAR PORTION OF SAID SPHERICAL SEGMENT ADJACENT THE LIP OF THE BOTTLE STRAIGHTENS OUT TO MAKE A STRAIGHT LINE FLUSH CONTACT WITH THE SUBSTANTIALLY FLAP LIP OF THE BOTTLE TO CAUSE SEALING TENSION BETWEEN THE CAP AND THE BOTTLE WHEN THE CAP IS FULLY ENGAGED ON THE BOTTLE WHILE STILL MAINTAINING SUBSTANTIALLY A CONCAVE-CONVEX STRUCTURE INWARDLY OF SAID ANNULAR PORTION.