Sealing closure for a crown-type bottle

Claim 1

A SEALING CLOSURE FOR A CROWN-TYPE BOTTLE HAVING A CURVED AND OVERHANGING LIP ADJACENT ITS MOUTH WITH A CREST AND PRESENTING AN ANNULAR SHOULDER FACING OPPOSITELY FROM THE TOP OF SAID LIP, COMPRISING: A DUCTILE METAL CAP ADAPTED TO BE POSITIONED OVER SAID LIP AND HAVING A CENTRAL LID PORTION WITH A DIAMETER AT LEAST EQUAL TO THE MAXIMUM OUTSIDE DIAMETER OF SAID LIP AND A DEPENDING SKIRT PORTION ADAPTED FOR LOCKING ENGAGEMENT WITH SAID SHOULDER, SAID LID PORTION BEING FORMED WITH ANNULAR, INNER AND OUTER PRESSURE RIDGES PROJECTING DOWNWARDLY AND COOPERATING TO DEFINE THE BOUNDARIES OF AN ANNULAR GROOVE IN THE INTERIOR OF SAID CAP, SAID INNER AND OUTER RIDGES BEING IN REGISTRATION WITH THE TOP OF SAID LIP AND BEING SPACED RADIALLY INWARDLY AND OUTWARDLY, RESPECTIVELY, OF SAID CREDT WHEN SAID CAP IS POSITIONED OVER SAID LIP; AND A RESILIENT, DEFORMABLE, AND SUBSTANTIALLY INCOMPRESSIBLE SEALING-LINING DISK, HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID OUTER PRESSURE RIDGE, FITTED IN SAID CAP CONTIGUOUS SAID PRESSURE RIDGES, SAID INNER RIDGE BEING ADAPTED FOR PRESSURAL ENGAGEMENT WITH SAID LIP TO URGE A FIRST SUBJACENT, LIMITED AREA OF SAID DISK INTO PRESSURAL CONTACT WITH SAID LIP AND, THEREAFTER, SAID OUTER RIDGE BEING ADAPTED FOR PIVOTING DOWNWARDLY ABOUT SAID INNER RIDGE AS A FULCRUM TO URGE A SECOND SUBADJACENT, LIMITED AREA OF SAID DISK INTO PRESSURAL CONTACT WITH SAID LIP AND THEREBY CONFINE A RING PORTION OF SAID DISK WITHIN SAID GROOVE, THE VOID OF SAID GROOVE AND THE VOLUME OF THE RING PORTION OF SAID DISK BEING VOLUMETRICALLY SIZED TO ONE ANOTHER DURING SAID PIVOTING.