Bottle stopper

Claim 1

A BOTTLE AND SAFETY CLOSURE THEREFOR INCLUDING IN COMBINATION: (A) A BOTTLE HAVING A CYLINDRICAL NECK, SAID NECK HAVING SCREW THREADS ABOUT THE EXTERIOR THEREOF AND AT LEAST TWO INDENTATIONS IN THE INTERIOR THEREOF, SAID INDENTATIONS BEING DISCONTINUOUS AND LYING IN ABOUT THE SAME RADIAL PLANE OF SAID NECK; (B) A CAP HAVING A CYLINDRICAL COLLAR PORTION WITH INTERIOR SCREW THREADS MATING WITH THE SAID SCREW THREADS OF THE SAID NECK AND A NORMALLY HORIZONTAL TOP PORTION INTEGRAL WITH THE SAID COLLAR, SAID NORMALLY HORIZONTAL PORTION BEING FLEXIBLE AND RESILIENT; (C) A PILLAR EXTENDING DOWNWARD FROM ABOUT THE CENTER OF THE SAID FLEXIBLE TOP PORTION; (D) PINS EXTENDING RADIALLY FROM AT LEAST TWO POINTS ADJACENT THE BASE OF THE SAID PILLAR TOWARD THE SAID COLLAR OF SAID CAP, THE SAID PINS EXTENDING A DISTANCE IN EXCESS OF THAT REQUIRED TO CONTACT THE INTERNAL PORTION OF THE NECK OF THE SAID BOTTLE WHEN THE SAID CAP IS IN PLACE UPON THE SAID BOTTLE, SAID PINS EACH TERMINATING IN AN END OF A SIZE ADAPTED TO REGISTER WITH ONE OF THE SAID INDENTATION IN THE SAID NECK, SAID PINS BEING FLEXIBLE; AND (E) A SLEEVE EXTENDING DOWNWARDLY FROM SAID SECURED NEAR THE MARGINAL EDGE OF SAID TOP PORTION, THE SLEEVE HAVING APERTURES THERETHROUGH ON THE SAME PLANE AS THE PINS, WITH THE TERMINAL ENDS OF THE PINS EXTENDING IN SLIDING RELATIONSHIPS, THROUGH THE APERTURES AND INTO SAID INDENTATIONS, SAID SLEEVE BEING SUFFICIENTLY RIGID TO CAUSE TO SAID PINS TO DEFLECT TO AN ARCUATE SHAPE, DISENGAGING THE ENDS OF SAID PINS FROM THE SAID INDENTATIONS IN THE BOTTLENECK AND RELEASING THE SAME CAP WHEN DOWNWARD PRESSURE IS EXERTED NEAR THE CENTER OF THE FLEXIBLE, NORMALLY HORIZONTAL TOP PORTION.