Closure cap for glass containers

Claim 1

IN A CLOSURE CAP OF THE TOP AND SIDE SEAL TYPE FOR USE IN ESTABLISHING AND MAINTAINING A HERMETIC SEAL ON A GLASS CONTAINER OF THE TYPE IN WHICH THE UPPER EDGE OF THE RIM TOGETHER WITH A PORTION OF THE SIDE SURFACE THEREOF CONSTITUTE THE HERMETIC SEALING FINISH, AND SAID CAP COMPRISING A GENERALLY CUP-SHAPED SHELL HAVING A TOP PANEL PORTION WITH THE MARGIN HAVING A DOWN-TURNED CHANNEL FORMATION TO REGISTER WITH SAID UPPER EDGE AND HAVING A STEPPED SKIRT PORTION WITH THE UPPER INNER STEP THEREOF INTEGRALLY JOINING THE OUTER WALL OF SAID CHANNEL FORMATION AS A CONTINUATION THEREOF AND PROVIDING A DOWNWARDLY AND OUTWARDLY TAPERED SIDE PORTION THE BOTTOM OF WHICH DIRECTLY JOINS AN OUTWARDLY FLARED SHOULDER PORTION, THE IMPROVEMENT COMPRISING AN ANNULAR SEALING GASKET LOCATED GENERALLY WITHIN THE CORNER OF SAID SHELL HAVING ITS UPPER AND INNER EDGE LOCATED ON THE UNDERSIDE OF SAID TOP PANEL PORTION ADJACENT THE BOTTOM OF THE INNER SIDE WALL OF SAID CHANNEL FORMATION WITH ITS LOWER AND OUTER EDGE TERMINATING IN A FEATHER EDGE ON THE UNDER-SIDE OF SAID OUTWARDLY FLARED SHOULDER PORTION, WITH SAID GASKET FILLING SAID CHANNEL FORMATION AND HAVING A DOWNWARDLY AND OUTWARDLY TAPERED PORTION WHICH RAPIDLY DIMINISHES IN CROSS-SECTION BELOW SAID CHANNEL FORMATION AND FOLLOWS SAID TAPERED SIDE PORTION AND SAID OUTWARDLY FLARED SHOULDER PORTION AND EXTENDS TO SAID FEATHER EDGE, SAID DOWNWARDLY AND OUTWARDLY TAPERED PORTION BEING AT LEAST SEVERAL TIMES LONGER THAN THE THICKNESS OF SAID CHANNEL FILLING PORTION; SAID CHANNEL FILLING PORTION OF SAID GASKET SEALINGLY ENGAGING SAID UPPER EDGE OF THE SEALING FINISH OF SAID CONTAINER WHEN SAID CLOSURE CAP IS HERMETICALLY SEALED THEREON WITH SAID TAPERED PORTION OF SAID GASKET BEING AT LEAST PARTIALLY THINNED OUT BY COMPRESSED SEALING ENGAGEMENT WITH SAID SIDE PORTION OF SAID SEALING FINISH, AND SAID FEATHER EDGE LYING SUBSTANTIALLY OUTWARDLY OF SAID SEALING FINISH.