Flexible container having interlocking rib and groover closure elements

Claim 1

A FLEXIBLE RECLOSABLE CONTAINER HAVING INTERLOCKING RIB AND GROOVE ELEMENTS FORMED AT THE INNER SURFACE OF THE OPENING THEREOF, SAID CONTAINER HAVING EXTERNAL FLANGES EXTENDING OUTWARDLY OF SAID ELEMENTS, SAID FLANGES BEING DRAWN APART TO SEPARATE SAID ELEMENTS AND TO OPEN SAID CONTAINER THEREBY, SAID CONTAINER BEING CLOSED BY PRESSING SAID ELEMENTS TOGETHER, SAID RIB ELEMENT HAVING AN ENGAGING TOOTH FACING INWARDLY OF THE CONTAINER AND HAVING A ROUNDED HEAD AND SPECIFICALLY A DOUBLE CURVE CONTOUR FACING OUTWARDLY FRONT CONTAINER, SAID DOUBLE CURVE CONTOUR HAVING A PROTRUDING CONVEX PORTION ADJACENT TO THE EXTREMITY THEREOF AND A CONCAVE PORTION FORMED INTERMEDIATE SAID CONVEX PORTION AND THE BASE OF SAID RIB ELEMENT, SAID GROOVE ELEMENT HAVING FIRST AND SECOND CURVED ARM PORTIONS FOR ENVELOPING SAID RIB ELEMENT, SAID FRIST CURVED ARM PORTION BEING DISPOSED INWARDLY OF SAID RIB ELEMENT AND HAVING A HOOK MEMBER FORMED AT THE OUTER EXTREMITY THEREOF FOR ENGAGING SAID TOOTH OF SAID RIB ELEMENT, SAID SECOND CURVED ARM PORTION BEING DISPOSED OUTWARDLY OF SAID RIB ELEMENT AND HAVING A HOOK MEMBER FORMED AT THE OUTER EXTREMITY THEREOF FOR BEING RECEIVED WITHIN SAID CONCAVE PORTION OF SAID RIB ELEMENT WHEREBY THE DISTINCTION BETWEEN SAID ENGAGING TOOTH AND SAID DOUBLE CURVE CONTOUR PROVIDES EASE OF OPENING FROM THE OUTSIDE AND RESISTS OPENING FROM THE INSIDE OF SAID CONTAINER.