Closure for cans and jars

Claim 1

A CLOSURE ARRANGEMENT FOR FOOD PRESERVING CONTAINERS, ESPECIALLY CANS AND JARS, WHICH COMPRISES: A FIRST MEMBER FORMING A CONTAINER OPEN AT ONE END THEREOF, A SECOND MEMBER FORMING A CLOSURE MEMBER CLOSING SAID OPEN END, AND AN ELASTIC SEALING RING ENGAGED BY BOTH SAID FIRST MEMBER AND SAID SECOND MEMBER, SAID SECOND MEMBER HAVING ITS MARGINAL PORTION EXTEND OVER AT LEAST A SECTION OF THE ADJACENT MARGINAL PORTION OF SAID FIRST MEMBER AND WHILE BEING IN TIGHT SEALING ENGAGEMENT WITH SAID SEALING RING EXTENDING AROUND THE LATTER SO AS TO LEAVE AN ANNULAR GAP BETWEEN THE MARGINAL PORTION OF SAID SECOND MEMBER AND THE ADJACENT PORTION OF SAID FIRST MEMBER, SAID SEALING RING BEING PROVIDED WITH TONGUE MEANS EXTENDING OUTWARDLY THROUGH SAID GAP, THE OUTER MARGINAL PORTION OF ONE OF SAID MEMBERS BEING FOLDED INWARDLY SO AS TO FORM AN ANNULAR TROUGH WITH ONE SIDE WALL THEREOF IN ENGAGEMENT WITH THE PERIPHERAL SURFACE OF SAID SEALING RING AND WITH THE OTHER SIDE OF SAID TROUGH AT LEAST PARTIALLY EMBEDDED IN SAID ELASTIC SEALING RING SO THAT OPPOSITE SIDES OF SAID ONE SIDE WALL ARE FIRMLY ENGAGED BY PORTIONS OF SAID SEALING RING THEREBY MAKING IT POSSIBLE FIXEDLY TO CONNECT SAID SEALING RING TO SAID ONE OF SAID MEMBERS PRIOR TO CLOSING SAID OPEN END.