Closure for crown cork bottles and similar containers

Claim 1

A CLOSURE FOR A CONTAINER HAVING AN EXTERNAL BEAD ENCIRCLING ITS NECK BELOW THE CONTAINER MOUTH, COMPRISING A CIRCULAR TOP WALL, A PLURALITY OF RIM SECTORS DEPENDING FROM THE OUTER PERIPHERY OF SAID TOP WALL, SAID SECTORS BEING FLEXIBLY CONNECTEED TO SAID TOP WALL FOR RELATIVE FLEXING IN RADIAL PLANES TOWARD AND AWAY FROM AN AXIS CONCENTRIC WITH AND PERPENDICULAR TO SAID TOP WALL, SAID TOP WALL AND SAID RIM SECTORS BEING INTEGRALLY INTERCONNECTED PARTS OF A UNITARY CAP STRUCTURE OF FLEXIBLE PLASTIC MATERIAL, EACH PAIR OF CIRCUMFERENTIALLY ADJOINING SECTORS HAVING CIRCUMFERENTIALLY OPPOSED END FACES DISPOSED FOR RELATIVE MOVEMENT INTO SUBSTANTIAL ENDWISE ABUTMENT WHEN THE SAID SECTORS ARE FLEXED RADIALLY INWARDLY TOWARD SAID AXIS, CIRCUMFERENTIALLY DIRECTED SNAP FASTENER MEANS CARRIED BY SAID ADJOINING SECTORS AT THEIR SAID OPPOSED END FACES RESPECTIVELY FOR INTERLOCKING ENGAGEMENTT WITH EACH OTHER INCIDENT TO SUCH RELATIVE MOVEMENT OF THE SAID FACES, TO SECURE SAID SECTORS AGAINST SUBSEQUENT CIRCUMFERENTIAL SEPARATION, SAID SECTORS RESPECTIVELY INCLUDING INWARDLY PROJECTING FLANGES ADJACENT THEIR LOWER EXTREMITIES FOR HOLDING ENGAGEMENT BENEATH THE SAID EXTERNAL BEAD OF THE BOTTLE NECK.