Reusable bottle cap

Claim 1

IN COMBINATION A SEALED BOTTLE AND A RESILIENT REUSABLE CAP, SAID BOTTLE SEALED BY A METAL CAP, SAID BOTTLE HAVING A GENERALLY CYLINDRICAL NECK, THE UPPER END OF SAID NECK HAVING AN ANNULAR RIM THE UNDERSIDE OF WHICH DEFINES A MINIMUM NECK DIAMETER, SAID NECK HAVING A FLARED CONFIGURATION BELOW SAID ANNULAR RIM, SAID REUSABLE CAP COMPRISING A TOP AND AN INTEGRAL DEPENDING SKIRT, SAID SKIRT HAVING AN INWARDLY PROJECTING ANNULAR BEAD DIMENSIONED TO BE RESILIENTLY URGED AGAINST SAID NECK AT SAID MINIMUM DIAMETER WHEN SAID REUSABLE CAP IS SEATED ON SAID BOTTLE, SAID SKIRT HAVING DISPOSED BELOW SAID ANNULAR BEAD A PLURALITY OF LONGITUDINAL SLOTS DEFINING DEPENDING FEET, A SECOND ANNULAR BEAD INWARDLY EXTENDING FROM SAID FEED AND RESILIENTLY URGED AND SEATED AGAINST SAID METAL CAP BELOW SAID ANNULAR RIM, THE INSIDE DIAMETER OF SAID SECOND ANNULAR BEAD BEING GREATER THAN SAID FIRST ANNULAR BEAD, THE DISTANCE BETWEEN SAID ANNULAR BEADS BEING GREATER THAN BETWEEN SAID FIRST ANNULAR BEAD AND SAID TOP, THE INNER SURFACE OF SAID FEET BEING OF SUBSTANTIALLY CURVILINEAR CONFIGURATION, SAID FEET COMPRISING THE LEAST WALL THICKNESS OF SAID SKIRT, THE LOWER EXTREMITY OF SAID FEET BEING TAPERED CONICALLY INWARDLY AND UPWARDLY.